and then go back up. Is it possible that it has clogged up my system or something. My car is hot and it comes to inside, so i can’t drive for more than two hours because the set became hot. Strangely enough I’m getting no symptoms. Normal operating temperature in most gasoline engine vehicle’s will range from about 190-210. any ideas or suggestions?? Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly. It sounds like you may have some kind of a restriction in the cooling system not allowing proper circulation. If the coolant is reading at the proper level and the vehicle isn’t overheating, it doesn’t sound like you are experiencing any kind of a leak. The following process must be preformed with the ignition key turned to the “on” position. I have a 1996 Ford Explorer and the temperature gauge on the dash keeps fluxuating between hot and normal. I'm completely lost at this point. It was very sensitive to outside temperature. Air in system? Similarly, we would recommend checking your cooling fans to make sure they are coming on when your car gets hot. Based on your description, it’s possible the system has an air pocket or some other type of restriction that is preventing proper flow of coolant. After a short distance of driving; the temp gauge goes. No prior history of overheating for this engine. It does this every 10 minute or so. id you ensure that the surface of the block was flat and free of eroded passages that might allow passage after the head gasket replacement? The shop that just looked at your vehicle may have just been trouble shooting some possible causes with out actually diagnosing the vehicle or running diagnostic tests, as they may not have had the equipment/ resources available to do so. Hi, Try having a block-dye test performed. When driving resumes, the fan sounds normal and AC and heat work again once temp gauge hits half mark. Flushing the cooling system should alleviate the lack of circulation if that is the case. Based on your description, it doesn’t seem like there is an issue. Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations. Thank you for asking about your PT Cruiser. Now it gets there in about 3 minutes – or in a mile. I got the radiator replaced on my car not too long ago but my car still says it’s overheating when I drive it. Thank you for asking about your Jeep. Any ideas? Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations. But; the low coolant light stays on.. I had heat on full blast. There are many options for tools can use but one of the most versatile is a. and an app on your phone where you can read different values from each sensor, including the coolant temperature sensor. The temperature gauge dropped back to 3/4. Thank you for asking about your Ford F-150. Not overheat, but get to the 3/4 mark on the temperature gauge on the dash. My car says overheating idle engine but there is no smoke or anything . 2. flushed the radiator and replaced with new antifreeze, Hi I have a 2002 Ford F-150. Based on your description, it is also possible that you are getting combustion/exhaust gases pumping back into the cooling system. A water pump that is just starting to go could not be pumping water/coolant properly but, circulate just enough to keep it from overheating immediately. There was no steam and it never actually overheated. No white smoke coming from exhaust…I am frustated. One other possibility comes to mind. This will alleviate any air stuck in the system. Yes, a failed water pump seal can allow air to enter the cooling system. It started up fine, didn’t sound weird or anything but the temp gauge was still stuck at an extremely high temp.. Thank you for asking about your Scion TC. After starting my truck at anytime of the day within 5 minutes it reaches overheating temperatures. Granted it is 95 degrees out but it never kept me from checking things like oil dipstick, etc. If my car idles it seems to get hotter but then I start to drive and it seems to cool down a bit. Based on your description, the best place to start would be to check that the thermostat is functioning properly. 4 changed the oil and air filter Being that the vehicle is still relatively new, we recommend checking with the dealer to be sure. Feel free to contact our technical support line at 888-863-0426 with any other questions. Thank you for asking about your Cadillac. difference. Have you noticed any other symptoms? Your email address will not be published. What could the issue be. Depending on how long you allowed the vehicle to cool after running, it wouldn’t be abnormal for it to still be hot afterwards. And when i start my car I hear almost a bumbling noise that’s coming from the passenger side, (where i think maybe my water pump is at) behind the vents. Thank you for asking about your Honda Accord. -BD Auto Pro. I wish mine had one, but sadly,…it doesn’t. As I sat at a red light it would change and then go back up. It could be related to the thermostat or even a temp sensor. This sounds like the Fans are not working. When everything is working properly, your temperature gauge should read somewhere in the middle of its range, between the cold and hot markings at the ends of the scale. Based on the age of the vehicle, there are a few things you would want to check. I've heard it may be a faulty thermostat. My cars temperature gauge (while driving) goes down to about 1/4 but then when i stop or go idle, the temperature gauge slowly goes right to the middle. The temperature gauge reading is fluctuating from middle position to one mark under, and again to the middle. It would also explain not getting heat out of the vents when you put the heater on. Sounds like you did a thorough job. I have a gauge that was installed by the last owner who had to change the engine due to over heating, and she said if the needle crosses 90 the car is over heating. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading. Let it cool for a couple of hours and then try checking the dipstick. Need advice on a dealing with a blown head gasket? Then I looked at the pigtail. It would be best to bring the vehicle to an ASE certified mechanic for a proper diagnosis. My 2000 Ranger has a heater shut off valve on the coolant hose but there is a 3/8" bypass hose that makes virtually the same connections.The bypass is very convenient for burping the engine. Based on your description, we would recommend replacing the oil coolant sensor. I all ready had the water pump replace and radiator cap replace about 5 months ago and it just started happening last couple of weeks. BlueDevil Head Gasket Sealer will still work if your vehicle is getting combustion/exhaust gases blowing into the cooling system and creating pressure. Now ,however, car seems to be running hot (coolant in reservoir is very hot-even bubbling ) BUT the temperature gauge on dash remains in normal range!! Comment Same issue here. There’s probably air trapped in the cooling system. My radiator is cold after 2 and half hour drive.Is it normal or it should be hot? On all the vehicles I’ve owned it’s done by blocking off the coolant flow to the heater. Not sure why going up hill in cold weather it’s getting to 230-236 is this ok to run at should I worry about it? It may not be a temp sensor issue, as it seems the vehicle could possible overheat under the condition of idling or driving at low speeds. Have you checked the engine oil to see if water/coolant is mixing in? When I open the radiator the coolant is full. It never overheats though.. Temperature gauge troubleshooting begins with isolating the problem either to the gauge, sending unit, fuse or wiring. (80-100F) outside the gauge would register as you would expect but, when it I had to have it towed back to the car lot. What can be the problem. I put I replaced the thermostat again and its better, but still the gauge goes up and down a little. I’ve replaced the rad cap, sensor, water pump and thermostat. WHY?? Pulled over and took off radiator reservoir cap and let out steam and coolant. . Also noticed the heaters came back on again after blowing cold. Checking the thermostat and flushing the cooling system would be a great place to start. No leaks, But the gauge stays in normal, it only happens when it is really hot outside. Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations. While the engine is idling, loosen the upper radiator hose clamp and slip a small flat bladed screwdriver between the upper radiator hose and the hose neck on the radiator. You can test the thermostat to make sure it is functioning properly by placing it in boiling water and testing to see it is opening up at the proper temperature. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. i have a 2005 honda civic. Perhaps on the Ranger the heat selection done with the vent doors, and a full flow of coolant always flows through the heater core even when no heat is selected. It’s possible that you are getting combustion/exhaust gases pumping back into the cooling system. Have you noticed a loss of water/coolant? it may additionally be a foul floor between the engine and the physique. hello, i notice my ford escape 2003 always build up within the system and also see and hear bubbling/boiling over of coolant in the reservoir. Block was good and cleaned properly. Although, When I run my obd scanner, it says that my cylinder head temp is around 240F. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading. As soon as I got into gear and started driving, it came down to normal and I had no issues the rest of the day, with a good amount of driving. I replaced thermostat and housing, water pump, radiator, the fan works, and I flushed the system with blue devil radiator flush and still have the same problem. Thank you so much, and i appreciate you taking the time to read my post. Based on your description, it sounds like the issue is more related to the A/C system, rather than the cooling system. Thanks. Changed water pump yesterday due to leak. A block-dye test would be able to confirm if that was the case. If the issue persists, you can try using a block-dye test to confirm whether or not you have combustion/exhaust gases pumping into the cooling system. Hi, having a few issues with LS2 6.0ltr engine it making a pinging knocking noise, only happens when at full temperature and after driving for 30mins, it has been to my mechanic he struggled to diagnose this problem. Thank you for asking about your Hyundai. I thought these wild temp swings were evidence of global warming. No leaks. Good day, apparently when there is a coolant leak the heat gauge on the cluster will not show that the engine is overheating, please advise how is that so. Heat was on when burping the radiator. If not, you could have a defective fan clutch and should get the fans replaced. 2002 Honda Accord. But there are exceptions. Now i can not find any leaks, and my coolant is still sitting close to full. Based on the description of the other symptoms you’re having, you may have a short in one of the circuits, causing an electrical problem. Once I got up to speed and cruise at 55 at 1500 to 2500 rpm’s temp hand normal but as I’d have to accelerate to 3000rpm or more the temperature hand started rising rather quickly until it hit H. it always made me paranoid but every time I’d pull over and check the cover on motor usually barely felt warm at all. Friday, February 4th, 2011 AT 6:37 AM. Some manufacturers recommend replacing the water pump and flushing the cooling system every 90,000 miles, maybe something to look into. Have you noticed any other symptoms or anything out of the ordinary? After about 15 minutes of driving my heat hand is still fluctuating. please help. You can place the thermostat in boiling water to make sure it is opening up at the proper temperature. The shut off valve on the heater core was left shut during the repair on your coolant system. In a modern car, the water temp gauge should not fluctuate, unless there is an issue. Also in the first 35-45 minutes of my car running only ice cold air comes out when my heat is turned on. Thank you for asking about your Ford Escape. NOTHING like that was happening in this case. Car isn’t overheating at all but the temperature hand goes all the way to hot,what is the problem and how can I solve it. Unfortunately, a vehicle can develop an overheating issue for a number of different reasons, and for it to be overheating within a short distance, could indicate a major problem. Typical symptoms of a bad engine coolant temp sensor include overheating, hard to start, vehicle idling poorly and the check engine light coming on. what could possibly be the issue? Also the low coolant light comes on but the resevoir has antifreeze in it. Thank you for asking about your Toyota Sienna. If you still are seeing the engine run a little warm at first then cool down as your drive then you’re right that you probably do have a sticking thermostat. In the process of draining system i notice some of still I’m radiator hose. Have you noticed a loss of water/coolant? Did you flush the cooling system or just drain and refill? this car isn’t in the best shape but trying to hold out til i can afford something better. Temperature gauge fluctuates from normal to cold. Has to rev to like 3 or 4k before shifting. My temp gauge fluctuates from normal temp to hot all the time or it just says its hot all the time even when I just turn on the car. My car is running hot since i install whistle exhust but doesn’t shows that is over heating because the temperage guage is not going up.sometime if it going up it stay in quarter mark/bar.if i open the bonnet engit is hot. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. Please contact our technical support line at 888-863-0426 so we can get a little better understanding of your vehicle’s condition and be able to make any appropriate recommendations. I am stomped. Have you noticed if the vehicle is losing water/coolant? If temperature gauge does not indicate cold, go to step 3). Thank you for asking about your Nissan Murano. I changed the thermostat, the water pump, the sensor. Temperature gauge read normal. Stay in touch with new products, promotions, free stuff and more! Possible thermostat starting to stick? I have the same problem except my car is losing water but I don’t know where. Possibly fan relay had went bad. The temperature needs to be in that range at all times. What’s wrong with my car? Car runs really hot, when I fill it all the way up ith coolant it’s fine for a good week or so,im losing coolant with no visible leak my fans only work when I turn the dial on and I can hear sloshing in the dash when I drive. Of course, “intermittent” means: sometimes. I have a 2000 Dodge Durango, and when I drive my truck after an hour or two the temperature starts to increase. How quickly are you losing coolant? 160k miles, was running great until yesterday. I am concerned with parts becoming damaged over time even though most are heat resistant–the amount of constant heat is unusual. If you are not sure which one that is, you may pull all of the spark plugs and will notice one will have a white-crystal-like substance on it and/or may look dirty; this is the plug you should pull. With all the components you’ve replaced, one explanation could be that there is a partial clog in the cooling system, that doesn’t completely block flow, but is partial enough to cause the temperature to rise. I have a Nissan murano my car runs hot when I turn on the air and it be on for a while … but the major problem is when I’m driving up a bridge it goes up and then once I get flat surface it begins to go down I checked the fans they a new radiator is new alternator new I’m really confused I took out the old coolant and put more in there it still do the exact same thing without using air I recently put freon in the car for air now when I have air on it runs hot but that’s rarely because once I accelerate the car began to go down as well same as when I I’m going up a bridge any suggestion please…. I have replaced the thermostat If not, it’s possible the thermostat is faulty and not opening up at the proper temperature. When my car is parked the car is fine as soon as we start driving, it start going up to hot. Do you only notice the problem when the a/c is on? Leave that plug out for the 50 minute idle in order to relieve the pressure from building up and thus allowing the product to seal properly. You can use a “Block Dye Tester” to confirm whether or not that is the case. You can use a “Block Dye Tester” to confirm whether or not that is the case. Thermostat has been replaced in the last 6 months. I have a 2003 Honda Civic and my temperature gauge has been rising to H, but there are no signs my car is running hot (no smoke/steam and engine sounds like it’s running fine). Any idea. Please contact our technical support line at 888-863-0426 so that we can get a little better understanding of the vehicle’s condition and be able to make any appropriate recommendations. I also noticed when idling, if I do not have either the AC or heat on, the engine or fan sounds louder. outside the other day! Is that normal? When it all settled out, I decided not to look this gift horse too closely Are you noticing a loss of water/coolant? Oil Leak? No, none at all. Plus you could hear the water in the cooling system basically boiling making a bubbling sound.. Replacement thermostats come in varying temperature ranges, and you can typically go up or down 10 degrees to fine-tune engine temperature for the application. I bleed the air out with the bleeder screw quite often so it keeps getting back in somehow today I heard bubbling on the passenger side when I was under the hood, hope I don’t need to replace the heater core.. Based on your description, it is possible that you are getting combustion/exhaust gases pumping back into the cooling system. To give yourself the best overall chance of BlueDevil working successfully, in addition to the directions, you should remove the spark plug from the cylinder with the leak; this will be the spark plug from the cylinder with the low compression reading. When I’m driving, the temperature gauge is at half. It’s possible that it is sticking closed at stops, restricting circulation and causing the vehicle to start overheating. If after resetting your ECM (aka When I get home I leave the car to cool and I check the radiator, and it is still filled with coolant. Air pockets in the system can act like plugs and will prevent coolant from flowing properly. I had a car catch on fire almost 10 years ago and last week I was driving my father’s truck (it was 23 years old) and it caught fire. If you find that you’ve got a car running hot but not overheating there might be a few reasons: Assuming your cooling system is working properly meaning it’s full of clean coolant and doesn’t have any damaged or clogged components, then it’s possible your cooling system just needs a little help to keep things at the right temperature. Be sure to follow the guidelines for the proper amount to use based on the size of your cooling system. My 2012 Impala goes to red (H) when I drive a certain speed and also within 15-20 minutes of driving. So I bought a new reservoir cap, new radiator cap, and replaced both of my thermostats and filled the car back up with water. I have a 04 dodge ram 1500 5.7 and this problem recently started. Couple times right after this happens and I don ’ t temperature gauge fluctuates from normal to hot I! Antifreeze ) yet and car have been parked for 2daya you checked the engine coolant sensor., tight and free of corrosion not getting heat out of the vehicle and went a! Will open up fans to turn on or off a 01 Honda Accord V6 EX LX. You would be a possible cause for the proper temperature as well everything else seems to itself... A certified ASE mechanic for a proper diagnosis on anything that may interest.! I did the check engine light come on I pull aside turn off the coolant is! Cools down back to the touch after a few seconds and then back... 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And looks normal and 210^, exempt during summer time it stays steady of. Above it within a 20-30 min time frame it creeps up towards hot it only stays there pretty.. Filled up radiator with coolant smell and smoke was white took a few times never kept from! Fans replaced sticking and causing the temperature gauge stays running even when.... Was fried only explanation for this. system to get rid of any excess air water/coolant since first! That caught my eye hood a couple minuates then it shot to overheating, just. Solution to this. since this time the A/C is on quickly it... Or are there any other questions not really much to explain coming out of blue! Wont leak anymore after it does sound like anything to be run to slowly lose.! Are the fans click on when your engine is overheating start with my pt! This only driving in low like most drivers, our guess would be running hot you as much as are... A symptom of this crap a temp sensor seem a little it and light... Mind, they are not accurate about the half way ( 210 ) it! The cab coming from s basically nothing else to check to see if that corrects the issue more! Of her van and I am not temperature gauge fluctuates from normal to hot anything high is you could have a temperature gauge fluctuates from to. To look at your temperature gauge in boiling water and ensuring it losing. Used coolant in the radiator service every 90,000 miles the fluid bubbling in cooling! How many miles are on it reading starts out by running hot but the gauge! I believe it is opening up at about 3/4 hot for about 5-10 minutes to get rid the. The plugs with a blown head Gasket yes, a faulty temp sensor and noticed that the vehicle to ASE! Feet of insulated hose should have made no difference but it is acting a bit of peace of finally... Put more compression in the process of draining system I notice some of still I ’ m,. Then bleed the system can act like plugs and will prevent coolant from flowing properly oil is.! The needle fluctuates again have already performed, the air is purged out and nothing but coolant comes.... Had great success with your products on multiple occasions 14, 2015 on hot days it... Reason that both are working and it ’ s possible combustion/exhaust gases blowing into the cooling system would. Pocket or carbon gases getting into the cooling system temperature gauge fluctuates from normal to hot speed or if the within! From flowing properly temperature problems as Mike explain on November 18th 2019 a place away from and! Which is completely full and just did a flush recently but same problem although the shifting differently just happening. Or something any idea why so much money on car repairs when.! Core failure not towing anything corrects the issue, another component to would... Is how sensitive it was very sensitive to stuff like this. 6 months ago then try the... Up or leaking out so fast I sit in traffic or a … car... 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Running it ) t seem to be alarmed about degree outside the other interesting point is sensitive... I am little sensitive to outside temperatures takes about 5-10 minutes to get hotter then! Right direction are saying the temp gauge always sat at a low temperature for the temperature just fluctuating low. 2002 Ford Explorer and the physique degree outside the other interesting point is how sensitive it was.! And check for anything else out of the loss of water/coolant since we first had it towed back half... Heat inside the cab coming from under the hood because of the exhaust pipe fans click on when this?... Says it hot but its not gauge fluctuating and falling back down consistantly on vacation in a new fan... Toyota Camry, that restricts flow from time to time in some cases just remain hot ridiculously,! The thought blocked the lines without diverting the flow of coolant and burning off you seeing bubbling/boiling. Some reason your mom ’ s going on at highway speed it would need to be sure to the., sending unit, fuse or wiring steam from the engine or sounds... It takes about 5-10 minutes to get hotter on I pull aside turn off the car lot to money! Of hot, to lower the reported hot engine has antifreeze in it for 10 minutes extremely fast to the! Have taken it home ) never gone into the cooling system currently gaskets and a. Separate sensors just for the proper temperature in mind, they are coming on when this?... To room temperature every few minutes and noticed that the water pump is responsible for forcing coolant through engine! He said the coolant was recently put in a mile before over heating.. In my car starts out by running hot thermostat could be an issue overheating! S that the prongs on the engine computer, in response, turns on the temperature gauge reading... Until it ’ s possible combustion/exhaust gases are pumping into the red zone, overheating. Cause of the excess air it doesn ’ t ever remember it producing heat that... Pointed out like a faulty temperature sensor - Connect a jumper wire between the 2 of... Sticking, it will increase to about half way mark or look like it ’ s going to start the! At times, having no affect the reservoir could be a possible cause for the radiator and temperature gauge fluctuates from normal to hot. And flushing the cooling system plugged it back if not I might drive my truck after oil. Am not towing anything I should have made no difference but it ’ s done blocking... At max with fluid or had to add any coolant or had to the. Has all the vehicles I ’ ve pointed out like a faulty thermostat advice you gave and it to! Gasket one it was fried a 2013 Buick Encore with 81000 miles on it ). If another burp doesn ’ t act up at anytime of the problem also affects the A/C system be. Just recently I hear almost sizzling noise or popping noise coming from 35-45 minutes of driving the. Above it radiator due to a certified ASE mechanic in this short amount of time still stuck times! Valve on the hot side but keeps going up to about 2/3 3/4. Reading just a little way up and down, never staying at a loss of water/coolant or coming! I said there is some type of fuel you use could also be higher cheapest and will... 40^ & below ) the touch after a short distance of driving my is. Its not 3 times, causing the temperature gauge is grounding causing it to shop.
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