92 Caprice 350tbi over heating issue
I have a 92 Caprice Wagon with a 350tbi that I bought a few months back. The owner before me replaced the radiator, but it still would run hot at times so I went ahead and replaced the water pump and thermostat(fail safe). After that it ran hot once and then the thermostat did what it does and got stuck open. I ran it like that for 2 months with the engine running super cold and rich of course....long story short I replaced the thermostat 5 times now and they all would make my car over heat. But if I took it out the car would run fine but cold since the thermostat would either be missing or stuck open. I’m stumped at this point! Any tips guys?
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You might have to flush out the engine. There could be a partial blockage.
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Happened to me before... Replace the fan clutch and you'll be OK.
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Originally Posted by Enzo305
(Post 347408)
Happened to me before... Replace the fan clutch and you'll be OK.
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Removed the fan clutch and it looks to be new or at least replaced recently. I think the owner before me had this same issue.
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I guess the temp valve of the 305 has to be 71°C and the 350 has to be about 82°C... If u say that the engine runs cold with valve out..means one thing.. Ur installing a wrong one...and about the fan clutch the inner spring might be malfunctioning.. Consider a new one a give it a try.
i also replaced all of my water hoses (heater and radiator) and flushed the system..that could help for about 30% too. |
Originally Posted by Enzo305
(Post 347424)
I guess the temp valve of the 305 has to be 71°C and the 350 has to be about 82°C... If u say that the engine runs cold with valve out..means one thing.. Ur installing a wrong one...and about the fan clutch the inner spring might be malfunctioning.. Consider a new one a give it a try.
i also replaced all of my water hoses (heater and radiator) and flushed the system..that could help for about 30% too. |
pay attention to the fan ! if it's running backwards than that will make it overheat ! also maybe a hose closing up with you when your driving, I had a ford f100 do that once ! also try this ! after you ran the car , shut it down and feel the radiator fins next to the fan, but watch your hands ! if you feel cold spots on the fins than the radiator is clogged in certain places !
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Yes indeed
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Originally Posted by Enzo305
(Post 347424)
I guess the temp valve of the 305 has to be 71°C and the 350 has to be about 82°C... If u say that the engine runs cold with valve out..means one thing.. Ur installing a wrong one...and about the fan clutch the inner spring might be malfunctioning.. Consider a new one a give it a try.
i also replaced all of my water hoses (heater and radiator) and flushed the system..that could help for about 30% too.
Originally Posted by bandit_601948
(Post 347432)
pay attention to the fan ! if it's running backwards than that will make it overheat ! also maybe a hose closing up with you when your driving, I had a ford f100 do that once ! also try this ! after you ran the car , shut it down and feel the radiator fins next to the fan, but watch your hands ! if you feel cold spots on the fins than the radiator is clogged in certain places !
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