Truck overheating no leak In essence, even if there’s no visible leak or your engine isn’t overheating, you might still be losing coolant due to reasons like a faulty radiator cap, a blown head gasket, or even small, hard-to-notice leaks. Coolant will escape as liquid or vapor, depending on the leak’s location. Overheating in the transmission with strange burning smells is a potential sign telling you that the mysterious leak is in the transmission lines rather than the transmission housing or its various seals. The most common place is the radiator cap. However, your engine may overheat without leaking coolant where you’ve parked your car in some instances. Another symptom of an issue with heater hoses is engine overheating. Deciding if I need a new head. If your leak is blue A few things check your oil make sure its not bubbly brown, next one thing i noticed is the stock radiator hose claps cannot handle higher speeds for prolonged periods of time, my dads 18 upper hose was leaking at higher speeds it got hot one day they added water but continued to leak mind you it stops leaking at lower speeds like 75ish and down but i noticed traces of coolant around the upper Mar 9, 2023 · What causes a sudden coolant leak? A torn hose or hole in the radiator can cause the coolant to pour out quickly. Coolant system failure can eventually cause major engine damage as running the truck hot can lead to head gasket failure or loss of power eventually causing the motor to stop running. Never overheated till the phasers were replaced. Another symptom I have been having is the truck getting extremely hot when accelerating (with no load in tow, just on the high way or surface streets daily driving). Nothing visible but still need to do a pressure test. After overheating the vehicle, it is possible there is further engine damage. Also dangerous as it severly decreases the oil's effective quality. Ideas please. Dec 5, 2022 · Hello. Troubleshooting your coolant system, when the problems are Sep 28, 2022 · A Ram 1500 can overheat for many reasons. 20 – Radiator Hose Leaks are Very Common. The coolant is a mixture of water and antifreeze that helps remove heat from your engine. When this happens, you should contact a roadside heavy-duty truck specialist or mechanic who can help you determine whether your vehicle is safe to use. oil leaking through the gasket and out. Does your coolant reservoir keep going empty but you can't find the leak? No drips on the ground, no smoke from the tailpipe Where could it be going on th May 9, 2019 · I don't think there is any possibility the car is overheating, because the gauge reading drops within a couple of seconds once I get a little speed up. Last week my "check gauge" light came on because it was overheating. Typically, a 50/50 mix is recommended, but this can vary depending on the climate and the specific coolant. code po 1258 is an overheating code, need to check why u r overheating, start simple, do u have fluid, has it been changed , might need thermostat, how old is truck,. There is an issue. The head gasket is a crucial component that seals the gap between the engine block and the cylinder head, preventing the mixing of engine coolant, engine oil, and combustion gases. 3L Vortec has a dry intake manifold therefore the leak cannot be there. SOURCE: 2000 chevy malibu keeps overheating hi this could be caused by a couple of things, thermostat not opening is one of the main one, fan heater switch on the radiator is another, and obviously water leak is another, the first one thermostat, can replaced relatively cheaply, for a few bucks, you could do it yourself if you have the correct tools, to find out if it is thermostat, fill water Check the exhaust for leaks. Jan 8, 2016 · If left unattended coolant leaks can eventually progress into more serious issues. With slightly lower oil pressure. This could be a blown head gasket, warped heads, or a cracked block. Leak on highway under pressure and no leak at idle. Issues such as a clogged radiator, a stuck thermostat, or a failing water pump can impede coolant flow, leading to overheating. The truck only had water in it no coolant changed the radiator and reservoir about 5 months ago everything been fine but I drained out some water about 51/2 gallons and added coolant the other day . Several factors can cause an engine to overheat even when the coolant level is sufficient. Check for these and try to isolate the problem. Even if there is no visible outflow, the antifreeze smell indicates a leak — it could be an internal or external seepage. Check Radiator for Leaks --- Also, Change Radiator Cap ( can loose pressure there if cap is bad) 3. Depending on the position of the leak, coolant will escape as liquid or May 25, 2017 · No loss of coolant and no leak visible. After repairing the leak and refilling the radiator the truck is fine for about 30 minutes of driving. Mar 8, 2018 · -Cracked hoses (hoses are hardened/brittle over time and get tiny cracks leaking the coolant. Typically, engines overheat due to one of six causes: a coolant leak or low coolant levels, a broken radiator fan, a failing water pump, low oil, or a faulty thermostat. Jan 4, 2010 · I just bought a used 2002 Ram 1500 w/ 4. The engine overheating is another symptom of a potential problem with the coolant recovery reservoir. 6 with 200000 miles I just noticed that when I turned on the heat the smell of antifreeze is very strong then fades as long as the heat is on. Several things can cause this overheating. On the second visit, they wouldn't even look at the truck outside of topping off the coolant level. Aug 26, 2009 · Truck started overheating with suddenness. I drive 2. Feb 21, 2025 · However, if the pump's impeller is worn out or it has begun to leak, overheating will probably occur. As for the triggers for a car still overheating even after replacing the thermostat and water pump, a clogged radiator, a leaking head gasket, a lousy radiator fan, a insufficient coolant level, a broken sensor, air invading the cooling system, and a worn-out thermostat can be to blame. The truck will reach between 210 and 215 and then as I ease out of the throttle to cruise the temp comes back down to 190-200 which is still Jan 9, 2025 · Coolant leak hard to notice then evaporating. BAD RADIATOR? STEP 1 The Chevrolet Silverado is a rugged truck that is made for a tough workload. A leak in the coolant system or damaged engine components may be "eating" coolant by allowing it to seep into the cylinders and get thrown out with the exhaust. (2 bad ones in a row, maybe I'm doing something wrong with testing because the truck will run at 200 for a long time before -randomly- it will start overheating. 0L Power Stroke Diesel - 6. 0 losing coolant but not overheating - Hi guys, so I'm in the middle of my drive back to school and I stopped at a rest stop to take a leak. Check Hoses for Leaks 2. Car smells like coolant but not overheating is a clear indication that the antifreeze is leaking somewhere in the cooling system. Leaks can occur due to issues such as worn-out hoses and damaged radiator caps. Common symptoms are overheating and white smoke coming from the exhaust. Pulled the valve covers to look for crack heads. White streaks mean coolant is probably leaking near that location. A temperature gauge rising means something is wrong with your cooling system, and a defective cooling system could mean your engine is in the process of overheating. Coolant Mixture: Double-check the mixture of your coolant. For the past 6 months, when I tow, (approx 6000 lbs enclosed race trailer) I have been getting overheat issues. Oct 6, 2013 · No leaks from radiator, levels remain the same since purchase and pressure checked at radiator cap and overfill cap. I've got 13,800 miles on it. Said the cooling system pressure checked OK. coolant leaking to oil thus the milk oil. That said, just because you How to test your cooling fan: https://youtu. 10. I used one gal of full anti-freeze (no 50/50) and one gal of water and filled up to make 50/50 which is 8 quarts for both. Nov 15, 2014 · 2009 - 2014 Ford F150 - coolant loss but no visible leaks - I have a 2012 EB with 67k miles, I am loosing coolant but don't see an obvious leak anywhere. No engine goes through gallons of water. The Sambar is then OK for a few days and then around th 5th day it suddenly sounds like I've got a jacuzzi bubbling under the rear of my van. 3L When I have a small coolant leak or coolant loss on a car like this Honda Civic, the first things I always check is. How do Nov 28, 2016 · 6. Losing coolant will lead to overheating if not addressed, and if the engine overheats, you can be left stranded and with a huge repair bill. Feb 22, 2021 · A leak down tester is needed here, and driving it, constantly overheating, and having to add that much water is not good. However, exhaust leaks are easy to identify. When did you first notice this issue? Customer: week or so Mechanic's Assistant: Have you checked the coolant levels and hoses for any leaks or blockages? Customer: no leaks. Customer: 04 gmc sierra heat blows cold truck is overheating Mechanic's Assistant: Have you checked the coolant? Have you checked for a leak in the cooling system? Customer: no leaks, flush heater core , chaged thermostat twice , water pump once. A faulty radiator cap A damaged radiator cap could make it difficult for your truck's cooling system to build and release pressure. It is 20 degrees out, but I was overheating after about 1 mile, kept pulling over to cool it, but made it home. When you have an internal head gasket leak, you are unlikely to notice any coolant leaking onto the ground. I Apr 30, 2022 · Still overheating. Stay informed with regular checks and professional Feb 21, 2024 · Yes so basically, when the truck drops to below a certain temperature, the cars computer thinks the truck is overheating and will throw a "engine hot AC turned off Code" and make the electric fans spin at max throttle. Leaks can introduce air into the system, leading to corrosion. An improper ratio of antifreeze to water can affect cooling efficiency. be/0a8ZagFlsnEIn this video, Josh walks you through the five most common causes of overheating in your vehicle an Dec 2, 2023 · When you stop and everything cools down, there’s no pressure or actively moving fluid, which lets the leak hide in plain sight. Overheating has several causes and is one of the most common problems in motor vehicles. Jul 28, 2023 · A coolant leak is frequently the cause of engine overheating. Customer: Hey good morning bro . Fluid Leak Jul 12, 2020 · 1997 - 2003 Ford F150 - Coolant smell but no visible leaks - Has anyone had issues with a coolant smell from there 4. I have a 300,326 mile 2006 2uz-fe In the last 326 miles I have installed a Denso radiator, next day over heated in 40 miles. Oct 28, 2014 · If you are ever driving your Ford F-150 truck, and you notice the temperature gauge rising up, there is no need to freak out. We left one of the most obvious reason for engine overheating, radiator hose leaks, for last because almost everyone knows this reason. Maybe one of the steam lines connecting the heads is leaking, but I would think you would see water on the ground. Check your coolant level at least once a month. Jan 15, 2023 · Dodge Ram 1500 overheating can be caused by many issues, such as coolant leaks, a faulty thermostat, low oil, and more. Still believe that coolant disappears. Dec 13, 2016 · 1997 K1500 Suburban 300,000 miles: Coolant disappears though no visible leaks at radiator, hoses, thermostat. The truck has no major modifications aside from aftermarket wheels and 33” tires Oct 24, 2023 · You can usually get the part for less than $50, and a reasonably capable DIY mechanic can replace the leaking thermostat in less than an hour. Oct 18, 2011 · 1997 - 2003 F150 - antifreeze smell but no leakhelp - 97 4. I Mar 9, 2025 · Another reason your car could lose coolant with no leak and no overheating symptoms is that the leak is too tiny to notice. Immediately pulled over and shut it off. The driver side looked like butterscotch on cover. The resulting cascade of fluid will see your engine overheat, warp your heads Dec 12, 2024 · Low coolant levels can lead to overheating and accelerated wear on your radiator. Finally, check the exhaust for leaks. 6 but cant find a leak? I put cardboard under the truck but no leaks found. I put a gallon of the Motorcraft Orange coolant in 2 weeks ago to fill the reservoir back to the line. Have your mechanic fix the leaking In this guide, we'll tell you what to do when a truck overheats, what could be causing the problem, how to fix it, and how to avoid overheating in the future. 7 V-8 Engine need 17 quarts to fill the cooling system. Jan 9, 2023 · Car overheats but no leaks have many possible culprits which include a clogged radiator, a faulty thermostat, air trapped in the cooling system inhibiting coolant flow, a bad water pump, malfunctioning cooling fans, plugged hoses, or a broken serpentine belt. Check Water Pump for Leaks. Some key factors in quickly diagnosing problems in your truck’s cooling system can be broken down into three separate functions that work closely together: radiator, charge air cooler, and A/C system. Faulty Radiator Cap. Only been driving it for 3-4 weeks and the coolant was topped off when I picked it up. Corrosion, being bumped, or even being caused by minor impacts are all examples. However I have checked everywhere for a leak and have found nothing, and I still have a full reservoir of fluid. Address Leaks Quickly. Pinhole leaks may only result in a few drops of coolant loss every month, scarcely enough to form a puddle. After a week it is no longer working. Dec 11, 2024 · What Causes Truck Engine Overheating? If your heavy-duty truck begins to overheat, stop as soon as possible and it is safe. An inspection of your cooling system can identify the source of the leak. You may never see a small leak when the engine and coolant is hot because it evaporates immediately after it leaks. If a leaking radiator causes the coolant leak, it can be repaired or replaced. Aug 12, 2024 · 2014+ Transit - Overheating Transit 2018 - Hi all I have a small fleet of 3. coolant through the head gasket and burned the the white smoke 3. A faulty cap may result in severe issues like a radiator seam leak or a burst hose. 2. Now it is empty again. This is my 4th truck, bought from new and the second that had phasers replaced. Jun 16, 2019 · We towed our 5th wheel to Hot Springs, AR and truck overheated to 245 deg because of a coolant leak at the o-ring in the EGR cooler inlet tube. Blown head gasket. )-Leaking inside the engine, coolant can leak into the oil pan. Learn to recognize critical symptoms like engine overheating and white smoke, and discover preventive measures to maintain your coolant levels. Surge tank overflowing w cap off and stat pulled Mechanic's Assistant: Did you hear any ticking noises, or smell any burning when it overheated? Customer: none no visible water in oil Mechanic's Assistant: What's the year and model of your truck? Jul 27, 2020 · When I picked up the truck, the work order stated they could smell an antifreeze smell but could not locate a leak (no mention of how much pressure was used for the test or the time length). do pressure check on radiator and see if it leaks, check radiator temperature vs engine temperature. Flushed radiator and heater core. 4. Nov 22, 2024 · Is your vehicle losing coolant without visible leaks? Our latest article explores the surprising reasons behind this issue, from evaporation and faulty radiator caps to internal engine leaks. Another reason your car coolant disappears with no leak or overheating signs is because the leak is too tiny to detect. If my car smells like antifreeze but has no leaks, maybe radiators can leak for several reasons. Ever. It overheats at speed so I am not suspecting the fan clutch. point and it Apr 14, 2009 · The #1 cause of a loss of heat in the cab is low coolant level, so you need to start by making sure the radiator is topped off and that all the air is bled out. If you are losing coolant say over a day or two, and with no visible leaks, I'd do the pressure test with the spark plugs removed on a hot engine. 0, and it has been a great truck. Very small leaks being burned internally may not show physically on spark plugs or tail pipes as a white smoke or a deposit. Depending on the position of the leak, coolant will escape as liquid or Nov 2, 2014 · coolant leak Thank you, Ive taken truck to dealer for all services, Just getting a idea what they will tell me, Never mentioned it to them for my 30,000, I lift up the hood,and its so massive, All engine, Cant really see anything top or bottom on radiator, Thank you very much for your post, and yes Iam using the ford gold, I remembered someone telling me that, When the man at o,reillys auto Jul 26, 2021 · A coolant leak can occur when a foreign object is kicked up by the truck in front of you and penetrates the radiator. Whether you’re managing a fleet of long-haul trucks or local delivery vehicles, understanding the causes of overheating and how to address them can save you from costly repairs, lost productivity, and unexpected downtime. The cooling system relies on a balanced level of coolant to regulate the engine temperature. Aug 9, 2021 · I have seen transmissions leak only over night, the aluminum would cool and the slight crack opened up, thus the leak over night. ) The next solution while saving money for more work was to use the heater full blast with the a/c off to keep the truck cool while driving. A blown head gasket is a severe and common cause of engine overheating in Silverado 1500. Sometimes very hard to see. If the reservoir leaks and the coolant level drops too low that can quickly lead to the engine overheating, depending on the size of the leak. 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks - Overheating, leaking coolant, and more - Background is that I had the engine and transmission out of my 80 F100. 5t Ford Transit tippers. 1) Change Water Pump Aug 16, 2020 · Not only does the truck overheat, I lose coolant. If the exhaust pipe or manifold is cracked or damaged, it can cause the smoke. In some cases, the coolant level may drop without any visible signs of a leak or overheating. In this guide, we'll tell you what to do when a truck overheats, what could be causing the problem, how to fix it, and how to avoid overheating in the future. Could be water pump from description. Poor Coolant Circulation. I put a gallon of antifreeze in that I had in the trunk and headed home. If the leak is very small it could take a long time to see any leakage (check everywhere). I had to make sure there was no air in the engine cooling system and no air in the radiator and old anti freeze is full flush. Feb 23, 2018 · Coolant has a sweet odor and a slimy texture. If the heater hoses leak enough, the coolant loss will compromise the effectiveness of the cooling system and cause the vehicle to overheat. Truck overheating is one of the most common issues fleet owners and operators face. Here's the goofy/frustrating part. Let's take a look at how to fix some of the more common causes of your car overheating. Still overheating. When I got home and checked, the coolant was really low. Nov 16, 2012 · I have a 2005 CC xlt 6. 3. If you notice coolant leaks, have them repaired as soon as possible. The resulting cascade of fluid will see your engine overheat, warp your heads Nov 7, 2009 · You need to pressure test the cooling system for as long as it takes to be sure it's not leaking externally. May 9, 2023 · When a leak forms in the head gasket, it is possible for coolant to leak into the combustion chamber and burn off, exiting the exhaust. I know I'm not burning it, and no leaks anywhere I can find. See full list on mechanswers. If I keep the speed under 70mph, and light or no grade, the truck is fine. Coolant Smell But No Leak – 6 Causes & How to Fix Jan 4, 2024 · Here are five common reasons that semi trucks overheat. However, of interesting note, all the leak dye that I put in the truck did nothing to identify the leak, because of the pressure where the leak was. Jan 21, 2015 · Feel under water pump for wetness. Jul 26, 2021 · A coolant leak can occur when a foreign object is kicked up by the truck in front of you and penetrates the radiator. Have a situation with 2009 Freightliner Columbia cooling system truck overheating and leaking from reservoir on side cap . In my case, it was one of the seals on the compressor, most likely the rear case seal, that was bad; and only leaking when the compressor pistons were moving. Malfunctioning Thermostats Jul 9, 2018 · The dealer pressure tested the cooling system and found no leaks. As an experienced mechanic who has worked on countless Dodge Ram 1500s, I can tell you that overheating is a common problem among these trucks. If all other suggestions and above not resolve, perhaps exhaust gas in coolant test at radiator shop would be good. If there’s a leak that you can’t see, it could be infiltrating the engine block due to a blown head gasket. I haven't seen any puddles or noticed any leaks since I've had it. I've checked and no coolant is leaking anywhere Jun 26, 2013 · It's still possible. At the moment I'm refilling her with coolant on a weekly basis. Hoses running to heater core are both warm/hot when heater is running, no leaks seen or felt on passenger or drivers side floors. I'm no mechanic, of course, but it would surprise me if the sensor sees completely normal temperatures within 5 seconds of acceleration. Based upon readings in this forum, I am seeking advice regarding intake Sep 1, 2023 · The truck cools off to 210 almost immediately after I stop and idle for a bit and won’t break 215-220 in town. look for obvious leaks on hoses and the Nov 7, 2013 · You also might have an internal coolant leak inside the engine like a head gasket causing the overheating. . If the head gasket is going you will see steam coming from a plug hole. The 5. Haven't done a pressure test yet but I've only had this truck for a year or so. We are getting issues now with the temperature gauge going from normal midrange to the top of the scale and showing max temperature and in the red. This could be the same scenario with coolant, many aluminum parts on an engine these days. The smell is present inside the cab and in the Customer: No visible coolant leaks, truck overheating. 2 miles to work. It feels pretty good anyway and was replaced by the previous owner Most leaks start small as seeping leaks. One of the primary culprits behind overheating is coolant leaks. Never done anything to this degree mechanically on a vehicle before and I wanted to learn Jan 5, 2016 · Any coolant leaks should be addressed as soon as possible to prevent overheating. Catching radiator leaks early will save you a lot of headaches, money and engine overheating. If I go above 65 but below 70, I run hot at 220-225 and lose coolant. Towed to Toyota, water pump timing belt, Hoses were done. No leaks anywhere. Radiator Issues: The radiator might be clogged or have reduced efficiency due to debris or internal blockages. Sep 12, 2016 · Pressurize the system and hold it for many hours. If you’ve ruled out an internal leak, that means your engine is burning the coolant somewhere else. 7L v8 engine. Key Point: Overheating can occur even with full coolant due to component failures or system blockages. If not, the technician may come to you and take the necessary steps Jun 1, 2020 · The cooling system on the front of your truck is made up of vital components to keep your truck movin’ down the road. Oct 7, 2023 · But if the smell is more intense outside, it could be a leaking head gasket, cracked radiator tank, leaking radiator cap, cracked thermostat housing, or a leaking cylinder head coolant hose connector. Could drive 40-50 miles no Jan 9, 2025 · Coolant leak hard to notice then evaporating. Engine overheating. Have you recently done a: 1. We will guide you in the process of diagnosing and repairing engine overheating problems. 1. Popped the hood and the coolent was empty. Can you use a radiator stop leak additive? In all events, in addition to repairing the leak, and making sure that the CAUSE of the overheating is fully identified and resolved, you may have to replace your engine cooling thermostat as well because episodes of overheating can actually damage the thermostat. It can also be caused by the failure of any of the cooling system parts. I cranked both heaters to full to help but both blew with absolutely no heat whatsoever. Repair internal engine damage. May 28, 2024 · But once you lose enough coolant, you’ll definitely notice overheating. New heater core this week with hoses and heater control shut-off valve. Well I decided to check the engine before I left and I noticed that my Degas bottle was empty and there was coolant on the engine in the vicinity. Jul 6, 2022 · Here are five reasons your truck may be overheating and how to fix it. When a vehicle loses coolant but there is no obvious leak or overheating, it can be quite frustrating for the owner. Oct 7, 2009 · My Sambar keeps overheating. It may be worthwhile to do a leak down test. Now, if the upper radiator hose is hot but the lower hose and the heater hoses are cold then try a new thermostat and see if the issue is repaired or not. The truck had sat since 1997 and did not run quite right. If the check engine light won't go on, and there are no codes to scan, then it's difficult to know where to start looking. If Water Pump is bad, you will hear a loud noise from it 4 Complete Tune Up? Should be done at least 1x a Yr. Lines going in and out of radiator are old but no visible leaks. If overheating is allowed to continue unchecked, it can cause serious damage to the engine. Let’s highlight where this leak could come from for easier troubleshooting and fixes. Coolant boiled out of the radiator. The truck has 207000km on it. The coolant level in the engine is extremely important, and if it drops too low, the engine will overheat. What I was told was the coolant overflow tank is vented and the hose for the tank runs by the grille up front and that's why I smell the coolant there. Any ideas what it May 23, 2023 · The most common cause for Dodge Ram 1500 overheating is low coolant level. is there a leak anywhere. When your car emits an antifreeze odor but displays no visible leaks, the culprit could very well be the radiator cap. If the smoke is coming from the exhaust, which indicates a leak, the engine will be making a loud and aggressive noise. Jun 23, 2023 · So why is my car overheating with a new thermostat and water pump?. The only way to fix this is to disconnect the battery or remove a 5 AMP fuse (i forget which one) and reset it that way. Jul 17, 2022 · Losing coolant from reservoir. Small puddles of coolant come from over flow tank. 6 Reasons a Ram 1500 is Overheating. get a thermo scanner they work good. 7. Dec 12, 2024 · Check to make sure you have no leaks in the cooling system. I smelled a slight burning smell, but no smoke or leaks. Jun 1, 2009 · My hayness repair manual said 4. Replaced rad, replaced louver actuator and new antifreeze again. Coolant Leaks. HG leak is always a possibility. Pinhole leaks may only cause a few drops of coolant loss per month, barely enough to leave a puddle. If the thermostat is damaged, and left in place, that can set the stage for Jun 13, 2006 · I agree with both sinarios, I have seen both (leaking and burning off before dripping and exhaust or head) In my years behind the wrench there are four types of head gasket leaks, 1. Overfill tank at normal levels. Do I need a water pump? I'm not sure they can figure this out. Jun 4, 2022 · Repair radiator leak. Faster I go, hotter it runs and lose more coolant. The fans work high and low, the coolant is full, no change if the AC is on or off, and it was about 85 degrees outside when it started to run hot. Had the oil cooler, egr cooler replaced back at about 70k, and now has 155k. And this begs the question, why is your engine overheating but coolant full? More information on why your engine is overheating without a leak may be found in the following Customer: Truck overheating, replace water pump & thermostats, no change Detroit boost sensor Mechanic's Assistant: I'm sorry to hear about your truck overheating. 2005 sierra 5. I can run the truck at about 65mph and I run at about 215 and don't lose coolant. This article will delve into 12 possible causes, exploring issues ranging from evaporative losses to more complex engine problems. com May 28, 2024 · But once you lose enough coolant, you’ll definitely notice overheating. socraaa huofvq pewfwxe wlmcs sofmvs zzbktsh kcm ehyni jkxbju ilbh nrvbv dochxjp rbfg rxftq wphvmvv