Question about 1991 Toyota Corolla

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Overheating. 1991 toyota corolla 5spd manual. 4cyl. overheating. oil level and color good. coolant low with oil in it. filled collant with a 50 50 mix, but coolant doesn't flow with engine running. no heat flowing through heater-core with the fan blowing. fan belt ok. engine surges when in neutral. does this mean it may be leaking oil into the coolant through the combustion system? Car normally runs great. from portland oregon

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Anonymous

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Sounds like you may have to change the thermostat.
and then you will need to get a can of carbcleaner the spray kind.
and spray the throttle body at the throttle plate for the surging.

make sure the belt your checking drives the water pump.
there may be more than one belt and the water pump belt may be missing.
oil in the coolant isnt good.
thats a sign of a head gasket leaking.
let me know if you need more help

jm

Posted on Dec 09, 2009

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Ronnie Wilson

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What you have Discribed is 1 of 2 VERY SERIOUS Problems or 1 You hav BLOWN a HEAD Gasket -or- 2 A CRACKED CYLINDER HEAD This OIL In COOLANT Must be Determined FOR SURE To Be Able to CONCLUDE one of the other, The Overheating Problem it a ByProduct of the BOTH

Posted on Dec 09, 2009

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