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Followup To
Question - I don't understand, I always thought a thermostat restricts the fluid flowing through the raditior until it opens. When it overheated the first time I took it out to eliminate the possibility of a sticking thermostate. What am I missing?
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Followup To
Question - The overheating occured without a thermostat. The transmission is a secondary thing. My main question is it worth pulling the head which I think is bad only to prove that it is bad and not worth replacing. Do I go ahead and pull it "lots of work" to prove it's bad or unload it now? I understand this is a crazy question, need expert advice as what to do.
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The car is a 1991 Lazer, with Mitsubishi 2.0. It overheated real bad, even melted the plug wires. It turned over ok, but would not start. No water in the oil or oil in the water. 5 months later I replaced the water pump, plugs and wires. It started but overheated again. running it without the raditor cap, had a lot of steam and white smoke from the exhaust. Believe it's now the clyinder head. The car has 160,000 miles on. I can pull the head and have it checked but it seams futile. The transmission also jerks when cold. Am I chasing a black hole here?
Answer -
Hi Don,
First off check your thermostat because that sounds like your major problem on the overheating issue and replace it if needed. If your transmission jerks that hard while it is cold it could be a sign of low fluid if it's a manual check the gear oil in it or automatic transmission if it's low and that will cause to do that if low and could cause it burn up the gears inside it if not checked and serviced regularly .Hope this helps
This happened without the thermosat
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What happened the overheating or transmission jerking without your thermostat?
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Well if your car don't have a thermostat in it then that's your problem that is there to keep it from overheating.Put one in and that should ease your heating problems.
AnswerYou're right on restricts the fluid flowin but that isn't always the case,It restricts it when the fluid is cold so the engine can warm up and the oil can lubricate the cylinder walls and then it kicks in at a certain temperature.It's only worth replacing the head if it is bad or warped but excess heat and loss of liquid to keep it cooled but then again you can have it fixed for less money. If this car had a history of overheating and it messed up your head(or you think)I would replace it but if the money is a issue with you i would sell the car . Sorry about the last reply i only saw half of your reply it didn't show the other part during that time.
