Engine Overheating Troubleshooting

Overheating Repairs and Prevention. This elbow gets blocked up with soot/exhaust/oil coke etc from the engine and ultimately can block the water outlet. We asked Otto to write us a detailed "how to" on diagnosing and repairing the most common causes if overheating. If the water side was a problem it was due to a failed thermostat or borken pump. My car is a 1979 V12 Jaguar. The engine suddenly overheated. It overheated and lost power then died. Shut it off and then started it again to go back out about an hour later and the engine seems like its shaking back and forth, and the check engine light starts flashing. Phase 1 engines: Phase 1 engines typically experience an "internal" head gasket failure if failure happens. Again, a little oil seepage is not a problem, but any drips should at least be investigated as to their origin. More about diagnosing problems. To help you get a quick understanding, here are a few basic facts about engine overheating problems… Engine heat is primarily generated from the fuel burn, plus a little from mechanical friction; One-third of the fuel heat goes straight out the exhaust (these are only crude figures). This is hard for a lot of mechanics to diagnose, is difficult to reliably duplicate, and often has resulted in the owners throwing money and parts at the problem. My car was ready on Tuesday 5/20. I've done many head gaskets over the years, and it becomes kind of a no brainer for me, but this is a common problem on the V6 engines so it deserves some recognition. This allows the water to carry away the engines excess heat and keep it from overheating. If you dump it down the engine side, the water will come out the exhaustif you dump it down the supply side it will come out the inlet ports. Not only would this be. Reply; Michael June 10th, 2016. If the cooling system in your medium-duty Isuzu NPR, Mitsubishi Fuso, Hino or UD Truck isn't working properly, the engine could end up overheating. 3) Test for items that cause overheating without the system being low on antifreeze. Especially when I am towing my boat (750 lbs). With the potential problem of overheating, I do not see that you can take a chance on these engines. This troubleshooting guide will focus on actions needed to correct engine overheating issues for MerCruiser Inboard motors. The system needs to be burped of all air. It red lined on me a couple days ago. Back in the days of carburetors, when engines were made of steel, overheating was much more common, and less damaging. First, open the coolant filler cap next to the oil dipstick, and check that the coolant is full to the very brim. My car, 2001 Honda Accord has an engine overheating problem that my mechanic can not seem to figure out. The problem occurred first (before I replaced the thermostat). I purchased the rotex liquid cooled heads and am having them installed. The temperature indicator is a good sign for letting the driver know that the car's overheating and can stall any time. 4M40 Overheating problems Pajero '05 Guys need help w/ my 4M40 Engine on Pajero '05, still overheating after checking hoses, overhauling radiator, passing bubble pressure test, replacing. Then we blew a hose from the engine at the HydroHot system. But as many F-150 Online members have discovered, these turbocharged engines run pretty hot as is. Outboard engine troubleshooting is an handy skill. If your engine is overheating, it may start to detonate. Coolant should not be more than max, nor should it be less than min. The engine thermostat is a temperature responsive water flow control valve. Please follow and like us: Read More. To know whether or not your engine is overheating, and what might be causing it, you need to do some troubleshooting. 0 6cyl is still overheating after I have replaced the thermostat, water pump, radiator, changed oil, spark plugs, and ive even ran it without a thermostat and it still overheats. Troubleshooting Automotive Overheating: The entire May 2000 issue of Troubleshooting Professional Magazine is devoted to this subject. Almost every part in the cooling system had been replaced (radiator, thermostat, hoses), and still the car was overheating. In automobiles, with liquid cooling and gasoline, one of the symtoms of a engine out of time is overheating, so I would assume that a small degree of overheating with a diesel could also be true, if there were a way to change the ignition timing. Not only it is unsafe to drive under this condition but also can cause permanent damage to the engine. If the detonation problem persists, the hammer-like blows may damage the rings, pistons or rod bearings. Engine overheating causes a major issue for motorcyclists during long rides and also while stuck in traffic for long hours. Gear cooler seems to leak water into the gear and you do not know if damage is lethal. Engine overheating damage is a major the car problems if you not prevent from the first time your car engine overheating. Do you own a 2007 to 2014 Ford F250 or F350 that produces one or more of the following symptoms/problems, and at least one of the symptoms/ problems has been subject to 3 or more repair attempts at the dealership during the original 3 year/36,000 mile factory warranty (or 100,000 mile diesel engine warranty), OR has simply been back to the shop for. Here are 3 Common Causes of Hydraulic Overheating: User Improvisation. It should be noted that while engine overheating cannot always be prevented or avoided, drivers are often presented with several warning signs that if observed, can limit the damage that comes with engine overheating, or even prevent a disastrous occurrence of engine overheating. Thank you for your fast response. Follow Kent's video series If your diesel engine is showing signs of overheating, don't panic until you do some detective work. Still problems. Flushing the system and refilling your coolant tank is once again the preferred course of action. But when things do go wrong with the cooling system, the Mercruiser is easy to troubleshoot and repair. In automobiles, with liquid cooling and gasoline, one of the symtoms of a engine out of time is overheating, so I would assume that a small degree of overheating with a diesel could also be true, if there were a way to change the ignition timing. 3) Test for items that cause overheating without the system being low on antifreeze. Check out the tech article on Car Overheating Problems & Troubleshooting, brought to you by the experts at Mustang Monthly Magazine. Car has been running great since. If your engine consistently runs hot, you should have your entire cooling system inspected by a professional to determine exactly what is causing the problem. Overheating Basic Maintenance. A download outboard repair manual is a book of instructions for learning how to maintain, service, troubleshoot, and overhaul the engine to factory specifications, including procedures for engine overheating Download this book straight to your computer in seconds and fix your problems now. Overheating on the Ford 4. Diesel Engine Cylinder Head Problems Diagnosis Head-related problems usually involve loss of compression in one or two cylinders, a condition that is signaled by a ragged idle, by increased fuel consumption, and in some instances, by exhaust smoke. Im trying to fight mig17s running at 84% throttle with the engine still flashing red at me. Excessive nitro in the fuel Use fuel with a lower nitro content. Problems with honda engine? I got an 01 Integra with a B18B1 in it and the other day I got gas in it and went home. I had that problem, and have read a number of threads of others having overheating problems. i shut it off let cool down put it back on trailor. 7 Liter Engine Overheating If it is getting hot while under a load, or driving on the expressway, you might have a restricted radiator. Poor timing and poor air/fuel (A/F) ratio can also cause your engine to run warmer. Kia Carnival / Naza Ria engine problem / overheating. I CANT BELIEVE I NEVER NOTICED, Well the nightmare is over, for atleast now. In this entry - basics of cooling for all most popular BMW engines. Hey guys Im new here and new to boating. When I finally got it back, I was having problems with the engine temperature gauge fluctuating from regular to the point of the car almost overheating when driving. At this point in my quest to correct my overheating jeep this seems to be the culprit of my problem. The problem was. Check out the tech article on Car Overheating Problems & Troubleshooting, brought to you by the experts at Mustang Monthly Magazine. The first job for the engine cooling system is to keep the engine from overheating. A friend of mine has a '66 Mustang (289 ci) that has a strange overheating problem. Where and how you are driving when your car overheats can help you diagnose the problem. Only way this can happen when the heat accumulated by your car engine exceeds the normal temperature. Collectively you have an overheating problem. The cause is that there wasn't much of a stream of water running through it to cool it. Why is the engine overheating? Our Yanmar engine's shrill alarm was the jarring start to some stressful hours during the last five months, and we asked that question many times. Issues with the coolant system in your vehicle can be difficult to diagnose. A download outboard repair manual is a book of instructions for learning how to maintain, service, troubleshoot, and overhaul the engine to factory specifications, including procedures for engine overheating Download this book straight to your computer in seconds and fix your problems now. There are many causes of engine overheating and while we won't go over all of them, we will point out some of the main causes of engine overheating and point you in the right direction for solving a overheating problem. mercedessource Tech help - It could be a number of things causing the problem. Engine overheating is dangerous in many senses. What's needed is for the Audi to keep its coolant water about -1. Fortunately, there are a number of things you can do to make sure this doesn’t lead to longer-lasting engine problems. Overheating on the Ford 4. But, if you’re overheating during only one of those situations, then airflow is most likely going to be your problem. some times some sheet metal Shields kept between front wheel mudguard and engine also leads to engine overheating. Situation or Problem Coolant level in reservoir is between the "MIN" and "MAX" range but engine or hydraulic system is overheating. At first my reservoir cracked so I replaced it. Your car may not immediately explode or anything like that, but driving with an overheating engine can cause serious damage to your vehicle. Of course, you should never overlook the possibility that the water intake is plugged. Maybe it will, but often by so doing you are addressing the symptom and not the cause. Improper or contaminated fuel Replace the fuel. If your engine overheats significantly, it may suffer extreme failure. So I wondered if the fan had stopped. Coolant flows from the radiator into the engine via the lower radiator hose entering at the water pump. Dialing down the RPM's may allow the engine to recover and run well at a more leisurely pace. I refused to give up on my 300M. Resulting in major performance and emission problems if the engine fails to reach its normal operating temperature. - Overheating - High pressure build-up in the coolant surge (fill) tank, that remains when the engine cools off - White smoke from the exhaust (condensation/water vapor is completely normal for any car) - Coolant smell from the exhaust - Engine temperature spikes during acceleration or climbing steep grades. That seems pretty drastic for an overheating problem unless you had some mixing or loss of fluids. It's also a good idea to open the hood to allow the heat to dissipate more quickly after you've pulled over. had it up to about 3000rpm on water i know nothing. 5 Common Causes of Engine Overheating. There is an Pontiac Solstice engine coolant temperature warning light on your Pontiac Solstice’s instrument panel. Any ideas?? Could it be a problem with the riser? Or could the old impeller bits have blocked something?. 0 is overheating, (or not getting up to operating temperature) first thing to do is check your radiator fluid. If the engine belt idler pulley bolt breaks, the vehicle may unexpectedly lose power-assisted steering, increasing the risk of a crash. The summer is here, and also – overheating problems of the engines. The hydraulic system comprised a diesel-hydraulic power unit, which was being used to power a pipe-cutting saw. Then we blew a hose from the engine at the HydroHot system. I replaced the impeller (the old on disintegrated) and also replaced the thermostat and sensor. Start with the people in our repair network; or suggest to your local mechanic to use our PATENTED SureGrip stud kit to fix your engine. If there is air in the system, the coolant level will go down. This is an extremely common problem with this model from Chrysler. To help you get a quick understanding, here are a few basic facts about engine overheating problems… Engine heat is primarily generated from the fuel burn, plus a little from mechanical friction; One-third of the fuel heat goes straight out the exhaust (these are only crude figures). Similar to drinking a soda too quickly and you get a gas pocket in your throat. But when things do go wrong with the cooling system, the Mercruiser is easy to troubleshoot and repair. The Honda Civic overheating is one such problem that many Honda owners have to deal with. If you are experiencing overheating problems on your bricklin, here is what to do: Check your fan belt. There is no steam coming from the engine when it overheats. If you continue to drive an overheating car, the result can be catastrophic. I checked it earlier and did the following scenario. The engine simply began to overheat with routine driving, so I decided to replace the thermostat and coolant. Re: Ford 300 Straight 6 Overheating Problem Solved many of the pre Al Gore generators are repairable with just auto engine repair savy. overheating problems Older Jaguar XKs are notorious for overheating when they get stuck in lengthy stop-and-go traffic jams. The benefits of a water cooled system have already been explained and the only problem with it is that a malfunction can easily cause catastrophic damage to the engine. I replaced the thermostat, (after boiling it on the stove) same problem. I have a 2009 Nissan Tiida Sedan which has been with me for almost 5 years. i drove the car for five days and everything was fine. Engine overheating causes a major issue for motorcyclists during long rides and also while stuck in traffic for long hours. All their mechanics are courteous, polite and friendly, which is often not the case elsewhere. If the coolant isn't warming up, then the problem may be with your thermostat, which will need to be checked and potentially replaced. More about diagnosing problems. If your Engine is not Performing it best it might be time to have your cooling system serviced. Normally engine overheats when ignition timing set at too advanced and tappets are tight. Give your engine some time to cool completely, then put the radiator cap back on. If you absolutely have to add water while the engine is still warm, pour slowly while the engine is running in neutral or park. It would be good to ask the mechanic to explain to you how they are sure that it is the head gasket – head gasket problems often share symptoms with other problems. Some of the most common issues that cause engine overheating, particularly in MINIs or BMWs are: low coolant levels (possibly due to engine leaks), radiator malfunction or failure, or water pump failure. On the BMW E34 525i 92 on and the E36 325i/is with M50 engine, the engines were fitted with plastic impellers waterpumps. However, that does not mean they do not have their fair share of problems. An overheating car could be a sign of a bigger problem, like a leak in your cooling system. That seems pretty drastic for an overheating problem unless you had some mixing or loss of fluids. The first of your responses to an overheating engine is to stop driving and turn off your vehicle. Take off the mower casing and clean out all of the debris. some times some sheet metal Shields kept between front wheel mudguard and engine also leads to engine overheating. But like any car manufacturer, certain models of Cadillac can suffer with particular engine problems more than others. Why is the Hunters engine overheating so quickly and so badly. I looked closely behind the engine to see the fan and found (difficulty to see) that the inlet screen in front of the fan was mostly clogged with grass clippings. no smoke or steam. But if your phone is getting too hot and is uncomfortable to the touch OR if you frequently see the message that your “iPhone needs to cool down before you can use it,” then there is a problem. At first my reservoir cracked so I replaced it. A no-start condition is one of the most frequently encountered engine problems. Depending on you engine configuration and the location of the water pump, the result could be trapped air in the water pump. Common water pump problems include leaks, shifting of the pump shaft, or eroded impeller vanes. Overheating typically occurs while towing in the Summer months, and is most prevalent in 2005 or earlier models (2006+ models received a larger radiator and fan). They advised him to get a new or used engine for the car and have it replaced somewhere outside the dealer because it would be cheaper. If the cooling system in your medium-duty Isuzu NPR, Mitsubishi Fuso, Hino or UD Truck isn't working properly, the engine could end up overheating. Cooling System Leaks. These waterpumps fails, the impeller desintegrates and you are left with no waterpump at all. For the last week my VZ has been overheating when the air-conditioning is turned off! Today I took it for a drive and the flashing warning came up saying Engine HOT, I pulled over and turned it off, for about 5mins the fans continued to run and eventually turned off. Leaks, clogs or problems with the radiator fan all mean that heat can’t properly escape your vehicle, which will cause the temperature to rise. At a stop, though, because the fan clutch doesn’t engage and air isn’t forced through the radiator, the engine can’t dissipate excess heat. - Overheating - High pressure build-up in the coolant surge (fill) tank, that remains when the engine cools off - White smoke from the exhaust (condensation/water vapor is completely normal for any car) - Coolant smell from the exhaust - Engine temperature spikes during acceleration or climbing steep grades. They warp fairly easily from overheating. Duramax LLY Overheating: The GM Solution and Beyond My first experience towing with my 2005 LLY Duramax was a thrill - and a disappointment. Alloys first (most engines even plain old) use it doesn't expand and contract so evenly, warps or wrecks gaskets. Spin the water pump around by hand and squeeze the lower radiator hose a few times to help work some bubbles out - don't start the engine though or water will come shooting out of there like a geyser. Look at the whole car when addressing overheating problems. Stop the engine if it overheats, and get out of the vehicle until the engine is cool. About basic things – there is a lot of information on the Internet. If you overfill the oil tank, the "extra" oil will flow into the oil return line. Mod Note : Please continue the discussion in our Engine Overheating Article. Coolant is in. Not only would this be. Common water pump problems include leaks, shifting of the pump shaft, or eroded impeller vanes. Overheating (Engines) Engine overheating can be a common problem, but it has a variety of causes. Looks like you have a lemon and seller not having any sense of caring for the engines. This means that the thermostat is not doing its job of keeping the engine within its average. 2 degrees Celsius. I have the same problem with my 51 reg mini one, there is no heating, it overheats and the water comes out the top of the radiator. I asked about this before but have done several things since. The cooling system in your MINI, just like all the other parts of the vehicle, need maintenance and repair in order to function properly. such as when the engine gets hot without overheating, but then overheats once it's back out on the road. Na browse ko na buong tsikot concerning my overheating problem pero none is similar kaya I started this new thread. One classic example is the 4. Of course, your engine both burns fuel and creates friction in order to give your car the juice it needs, and that causes a great deal of heat to build up. Fill radiator completely with water. The contact parked the vehicle, turned off the engine, and waited ten minutes. 5 Common Causes of Engine Overheating. Compression testing is usually done to determine the health on an engine. Be aware that without the clamping force of the t-stat housing, water may leak under the intake a little while you're doing this. If No Steam Is Coming from the Engine Compartment. Coil is in engine bay, Turbo 400 with 3500 stall and 4:11 diff. And then other times, the engine will stay cold for an unusual amount of time, and then jump all the way up to near overheating. It originally had a 361 BB engine in it with 65,000 original miles when i bought it. The primary cause behind engine overheating is a dirty engine. I've had the thermostat changed, had the head gasket checked, pressure tested, the water pump and all the electrics tested but there is still an air lock as my car is still overheating any clue of what's going on. • Overheating can cause the camshaft to swell and then break. Most modern engines run between 200 and 225 degrees Fahrenheit, with a 195 degree thermostat. It can also help to diagnose overheating or hundreds of other problems. Following 3 mechanics advice I have replaced: water pump, 2 thermostats, temp sender unit, drive belt. Average repair cost is $940 at 85,950 miles. I too have had what looks like overheating problems with a Cummins ISL 400 in a 2006 Newmar Dutch Star on a Spartan chassis. Before we move on to other common problems that can cause engine overheating let's finish up with the thermostat and its technical definition. The problem was. Almost every part in the cooling system had been replaced (radiator, thermostat, hoses), and still the car was overheating. Changed water pump, same problem. - bottom inlet hose to thermostat is literally COLD. This article provides insight into places to check and suggests a new procedure to add to your boat maintenance routine. 6) The engine coolant radiator core is internally clogged with "deposits". The Toyota Sienna has an indicator to warn of Toyota Sienna engine overheating. Hidden it's glowing hot somewhere - that's the trouble. 5L Engines are Known for Cooling Problems. Not only it is unsafe to drive under this condition but also can cause permanent damage to the engine. This troubleshooting guide will focus on actions needed to correct engine overheating issues for MerCruiser Inboard motors. Most engines installed in Catalinas are equipped with fresh water cooling. Even with the thermostat out the engine will overheat. Radiator Problems – Another common cause of engine overheating is a problem with your radiator. I have a 2005 trailblazer and it is having overheating problems. An overheating vehicle is a sign that needs immediate attention. Temperatures on the Jellico Pass of I75 would run from 195 up to 235 on the dash gage. I would suggest checking the coolant, and making sure it is bled properly - which can be a rather involved process to do it correctly. The contact turned off the air conditioner; however, several minutes later, an "engine overheating" message displayed. mercedessource Tech help - It could be a number of things causing the problem. Common water pump problems include leaks, shifting of the pump shaft, or eroded impeller vanes. Steamy water, antifreeze, or overheating paint smells in the engine space indicate an overheating engine. Some time back my previous alternator failed. If your engine is overheating but there is no coolant leak, then you might have a clogged coolant hose. check the above points. Our mission is to connect people to the world’s waters, and through those waters, to each other. Get or make a u-bend of 16mm metal pipe and disconnect the two heater hoses at the firewall behind the engine and join them together with the u-bend and two hose clamps. Cooling System Leaks. Look at the whole car when addressing overheating problems. Resulting in major performance and emission problems if the engine fails to reach its normal operating temperature. Any time you experience an overheat condition, it is important to immediately stop driving the vehicle and being to. Collectively you have an overheating problem. You have to wonder. I have heard that the Kia Carnival / Naza Ria engine has a common overheating problem. Is your car engine overheating? Does your cars motor run hot? In this video, I explain how-to troubleshoot and diagnose an overheating engine in 9 simple steps. My car was in an accident awhile ago. There is an engine coolant temperature gauge on the vehicle instrument cluster to warn of engine overheating. The first sign of a vehicle overheating is either when the needle on the temperature gauge pushes its way into the ominous red zone or the "Check Engine" or "Temperature" malfunction indicator light on the dashboard casts a sinister glow. Recommended nitro content for Traxxas engines is 10% to 33%. The repairs are in excess of $2,500. I have a 67 chevelle with a '90 model 454 stroked to 496,. An overheating engine is a common sign that your car is low in coolant. 0? no coolant leak. I want to get the thermostat out, but can't get the damn bolts to loosen up grrr. It's actually painful. Western Ave in Oklahoma City understand your fears and want to give you some peace of mind. Normally engine overheats when ignition timing set at too advanced and tappets are tight. It's also a good idea to open the hood to allow the heat to dissipate more quickly after you've pulled over. It red lined on me a couple days ago. I too have had what looks like overheating problems with a Cummins ISL 400 in a 2006 Newmar Dutch Star on a Spartan chassis. Reply; Michael June 10th, 2016. Learn about our Cooling System Special. The engine may rattle and ping and lose power. no smoke or steam. But you shouldn't trust your engine repair needs to just anyone! Hill County Auto Care offers affordable engine repair services that are hassle-free and reliable every time. I have realized that this is the fan related to the engine (or radiator?) because when I turn the A/C off, the other fan quits going and when I turn the A/C onthe fan on that side still works. And considering the variety of causes, you can't be too careful. with a little TLC, stuff built in the days of big tail fins may run until that style returns. Never drive a car that is overheating, or you risk ruining the engine, says Fernando Obregon, with highly rated Miami’s Quality Auto Repair. A no-start condition is one of the most frequently encountered engine problems. Common Engine Problems Due to Overheating. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. To help you get a quick understanding, here are a few basic facts about engine overheating problems… Engine heat is primarily generated from the fuel burn, plus a little from mechanical friction; One-third of the fuel heat goes straight out the exhaust (these are only crude figures). My car was ready on Tuesday 5/20. You have the best of both worlds with two engines to compare your temp results. 0 merc seems to have overheat issues i have replaced impeler and t stat(140 deg) on muffs, temp runs about 140 to 150 got out on water and temp went to 180,185. Engine overheating causes a major issue for motorcyclists during long rides and also while stuck in traffic for long hours. Still problems. 2 compression, with aluminum pro comp heads. The way to prove this is to bypass the heater element. Is your car engine overheating? Does your cars motor run hot? In this video, I explain how-to troubleshoot and diagnose an overheating engine in 9 simple steps. One-third is used to power the engine. I replaced the faulty rectifier, and changed the voltage. Thank you for your fast response. One-third is used to power the engine. Get this repaired before you overheat this to the point of warping the head(s). What if we have this problem and the antifreeze level is not low? The first component we test is the thermostat. While it’s tempting to head for a nearby auto repair shop, you will need to wait to schedule engine maintenance and repair. Overheating is a common symptom of marine diesel engine blockage. I replaced the impeller (the old on disintegrated) and also replaced the thermostat and sensor. I have a 67 chevelle with a '90 model 454 stroked to 496,. At this point in my quest to correct my overheating jeep this seems to be the culprit of my problem. You are smart having these analyses done. Most likely its not the thermostat, thats what people told me, that it was the thermostat, but it wasnt. Note that most cars require a 50/50 mix of coolant with water to prevent overheating, so you won't be able to drive indefinitely with nothing but water. If You Need More Coolant, Add The Proper DEX-COOL Coolant Mixture At The Coolant Surge Tank, But Only When The Engine Is Cool. After building a new engine /tranny and replacing all suspension and brakes on Alex's car two years ago I had issues with over heating on 100 plus days. In my experience, the Engine Overheating Problems can occur when the car has had recent engine work carried out. Maybe it will, but often by so doing you are addressing the symptom and not the cause. Although this component is a leading cause of overheating it is not the only one. The Toyota Sienna has an indicator to warn of Toyota Sienna engine overheating. Whatever is causing the coolant leak or overheating radiator, our automotive technicians will be able to diagnose the problem. the engine to idle for 1/2 hour with the radiator be the ECU coolant temperature sensor unit that is the problem. Looks like you have a lemon and seller not having any sense of caring for the engines. The car's engine will run its best at a fairly high temperature. Im trying to fight mig17s running at 84% throttle with the engine still flashing red at me. Coolant should not be more than max, nor should it be less than min. At this point in my quest to correct my overheating jeep this seems to be the culprit of my problem. Initially, the overheating was intermittent, so i figured it was a thermostat (sticking at times). The system needs to be burped of all air. was still overheating so i took it to the mechanics they pressure tested hot and cold flushed the system bled it couldn't find a problem said he couldn't get it to overheat once he bled it. A no-start condition is one of the most frequently encountered engine problems. What Can Cause. It seems the front air intake is not large enough to cool the engine properly. then the engine started overheating two lines after the middle. When I took it apart, I saw that one of the diodes was dud. Heat is energy from the fuel used, a byproduct of the combustion process. That's because an engine overheating will cause problems and even complete engine failure. It is reliable and usually the annual maintenance performed during winter layup will prevent overheating problems. Start engine with radiator cap off. Some common Northstar engine problems include head gasket failures, excessive oil consumption, knocking or pinging, oil leaks and no oil pressure. An overheating vehicle may display one or more of the following symptoms: A temperature gauge that is reading higher than normal and into the red; An illuminated check engine light and/or engine temperature warning light; White or black smoke from the exhaust pipe when accelerating. engine overheating, water doesn't flow. Overheating (Engines) Engine overheating can be a common problem, but it has a variety of causes. Dialing down the RPM's may allow the engine to recover and run well at a more leisurely pace. Seem like there are very many people experiencing overheating in the 2008 & 2009 Freightliner/Fleetwood models. They advised him to get a new or used engine for the car and have it replaced somewhere outside the dealer because it would be cheaper. But, if it is just an engine overheating, try (with the engine cold), spraying out the vented area under the shrouds somewhat behind the engine (they wrap around the engine and can get clogged). It's also a good idea to open the hood to allow the heat to dissipate more quickly after you've pulled over. If that is the case check the injector elbow on the exhaust where the raw water, after going through the heat exchanger, is pumped into the exhaust pipe and then overboard. One such problem is the potential for overheating. Engine overheating warning. First thing the cooling system should be completely full and all air evacuated.