Question about 1991 Acura Legend

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Overheating changed water pump, thermostat and radiator. Runs ok when at idle. Fans go on and off.but runs hot/over heats when driven over ten minutes

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  • David Johnson
    David Johnson May 11, 2010

    Hey, I am sure you know how to burp it, but this reminds me of air captured in your coolant system.

  • O Mclean May 11, 2010

    But runs????

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Be very careful relaying on the fans as I blew a head gasket when they did not come on. Still sounds like a froze thermostat

Posted on Feb 02, 2009

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Take off your radiator cap (when the car is cold) and then start it. If it looks remotely like a geyser in Yellowstone, you have a blown head gasket.

Posted on Jan 06, 2009

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3 Answers

Car running hot


the water coming out of the front would be from the water pump, it also would be an indication that the pump is bad, which may have been the reason of why the car overheated in the first place.

Dec 19, 2014 | Cars & Trucks

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Why is my 2001 cadillac running hot?


With the thermostat out you should see a lot of circulation. If not investigate water pump. Is the fan electric fan working? Bypass the relay and run the fan whenever the engine is running. If it doesn't overheat with the fan running then investigate fan control. make sure the coolant is topped off and use a thermometer in the radiator to verify temperature.

Sep 17, 2014 | 2001 Cadillac DeVille

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2002 jeep sport. Overheating while at idle. Changed radiator, thermostat, water pump. Only runs cool when ac is on. What next?


relay that controls the speed of the radiator cooling fans must be checked
Air conditioning works when theAir conditioning works the relay is stuck ON for the fans cool two radiators (ac + main radiator)

Sep 15, 2013 | Cars & Trucks

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1988 b2200 is overheating--we've changed out the lower radiator hose, thermostat, and the upper hose is fine. Why is it overheating? Radiator, heat pump, or water pump?


!st check and make sure the water is flowing in the radiator, then check
the timeing, Mazda will run hot if the timeing is rong.

Jul 19, 2012 | 1988 Mazda B2200

1 Answer

1996 nissan maxima overheating


i believe the question was explained as fans work!! why all the fan inop answers?? anyway...you will need to check the water pump first...if you change it then make sure your cataltic converters are not plugged. from there its ussually a combustion leak from cracked or defective head gaskets due to the mileage. if it stays cool at idle its deff not a cooling fan problem..the fans only are used primary at idle. hope this helps

Feb 03, 2012 | 1996 Nissan Maxima

2 Answers

Over heating


When your temperature gauge reaches "H' it may too late to prevent a major breakdown. Knowing the symptoms of an overheated car and how they occur may be the difference between being inconvenienced and incapacitated.
Identification:---Other than a low oil level or low oil pressure light, there is not a more significant part of a car's instrumentation than a rising temperature gauge or a glowing "Hot" light. These lights are really the only confirmation a driver has that his car is really overheating. It is the identification of the symptoms of an overheating car that enable the motorist to avert a badly damaged engine. Overheating is always a traumatic event for a car's engine, which makes the early identification of the symptom an important addition to the informed motorist's tool kit.
Stuck Thermostat:--The car's thermostat is a valve that controls coolant flow from the engine block to the radiator. When the engine is cold the thermostat remains closed so that the coolant can reach operating temperature quicker and also provide heat to the passenger's compartment. The thermostat has a spring on it that moves depending on coolant temperature causing the thermostat to open. Sometimes the thermostat fails to open thus restricting coolant flow to the radiator where it would be cooled down. This condition is often the cause of overheating. The symptoms of this cause would be a rising temperature gauge and possibly the loss of heat inside the car.
Restricted Radiator:---A car's radiator will have thousands of gallons of coolant passing through in its lifetime. Along with the coolant comes particulate matter in the form of corrosion breaking loose from various parts of the car's cooling system. These contaminates collect in the tubes of the radiator reducing its efficiency. Extensive "plugging" in the radiator will cause the car to overheat. The symptom of this condition would be a rising temperature gauge which goes up when you accelerate.
Coolant Loss:--A car's cooling system is a closed loop system. You are not supposed to lose coolant. Sufficient coolant loss will cause the engine to run hot because engine is heating less coolant to higher temperatures. The symptom of overheating induced by coolant loss would be a pool of coolant on the pavement when the leak is external. Steam under the hood as the lost coolant hits hot parts of the engine, or a rising temperature gauge in the case of a undetectable engine related leak. Of course, the gauge would also go up if the leaks were not detected. Deteriorated Water Pump:--Cars use a belt driven pump to push the water and coolant mixture through the cooling system. This part is called the water pump. Rarely the impeller that draws the coolant through the pump will rust away making it impossible to push any through the system. If this occurs the temperature gauge will climb and coolant will boil over in the radiator. Inoperable Fan:----Most cooling fans are electrically driven. Some are driven by fan belts. If a belt breaks or the electric supply to the fan is interrupted overheating may result. Electric fans are tuned on thermostatically when needed. When the car runs at idle for extended periods or the weather is extremely hot, a failed fan will cause overheating otherwise it serves as a standby assist to the rest of the cooling system. In stress conditions an inoperable fan will cause the temperature gauge to rise. This will help. Thanks please keep updated.please please do rate the solution positively .thank you for using fixya

Mar 19, 2010 | 2001 Hyundai Accent

1 Answer

I have a 2000 Pontiac Sunfire. It keeps overheating. I have replaced the radiator, water pump, a couple hoses, and the thermostat. I ariated it. It still overheats only runs cool if I run it without the...


i'm not being smart, but do you know for sure you are installing the thermostat correctly? the thermostat is there to slow the water flow down long enough for the water to obsorb the heat .also is the cooling fans operating ?do the fans come on at around 210 degrees?is the radiator grill clean? lower spoiler intact? does the engine over heat at highway speeds or while idling? are there any codes?is the engine running lean? possible fuel filter stopped up.fuel injectors dirty. let me know

Oct 14, 2009 | 2000 Pontiac Sunfire

1 Answer

Engine over heats 2000 cadallic deville northstar engine


flush your radiator first.with the thermostat out you should see the water moving if not bad water pump.this engine needs the thermostat to function properly and either a 50/50 coolant or straight coolant so it does not boil over.also make sure your fans are coming on

Sep 20, 2009 | 2000 Cadillac DeVille

3 Answers

1996 328IS, Over heating after 25 minutes of idling,


clogged with old rad chunks
no white smoke

Sep 05, 2009 | 1997 BMW 328

4 Answers

1997 cadillac eldorado running hot


Make sure you put in the correct temp thermostat. GM usually has 2. A low temp and a high temp. Most shops will give ya the high temp just because thats usually what the book calls for. you might want to try a low temp. Also, sometimes, when a car runs hot and everything has been repaired....well, almost everything......it might be the head gaskets. And those my friend are no easy task. But..somewhere to start. have your cooling system pressure tested. Only way to really know for sure. Oh..also make sure your fan is working!!!! You might have a faulty fan switch.

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