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Repair Topics / Engine Thermostat

MORE: Engine over heats or runs hot questions

Car Engine Cooling Thermostat

Question: 1995 Chevrolet Corvette LS1 mileage: 60,000. I'm thinking of replacing my vehicle's thermostat from stock 192 degrees to a 160 or a 178 low temp thermostat. I live in Florida and during summer, the vehicle runs hot, doesn't overheat, just runs hot. I know some of the benefits of a low temp thermostat, but what are some of the problems that this change may cause?

Answer: Your engine computer management system is designed to work with the engine at 192 degrees. A lower temperature thermostat may keep the engine in open loop not allowing the computer to control the engine. This creates drivability problems.



Question: 2001 Toyota Celica, mileage: 190,000.  My Toyota has not ever given me any problems until now.  Recently, it has been taking a long time for the car to warm-up.   In the mornings, I'll drive 20 or 30 miles before the needle on the temperature gauge will rise enough to hit the "C" and now that the weather's turned cold, it's taking a long time to get any heat from the heater.  What do you think the problem is?

Answer:   Sounds like the thermostat is stuck open.  Replacing it should solve your problem.


Question: 1999 Nissan Pathfinder, mileage: 105,000.  Where is the thermostat located on this particular truck?  (Have changed before on Ford Bronco).

Answer:   It is located in the housing on the engine.  The top radiator hose is attaches to it.


Question: 1999 Mitsubishi Eclipse, mileage: 113,000.  When I drive, the engine will not warm up, but when I am still then the engine does warm up.

Answer: It sounds like you have a thermostat that has failed and needs replacing.


Question:  2004 Honda Accord, mileage 52,000. Please tell me where my thermostat is. I removed the top radiator hose going to the engine and its not there.

Answer:   It is located in the housing at the end of the lower hose (engine side).

Repair Topics / Engine Thermostat

Look up your engine cooling thermostat question in our Car Repair forum section.

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