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Overheating, Check Engine Light On

1990 Toyota Corolla
Overheating - have to fill the radiator and overflow bottle every time we use the car, but doesn't appear to be leaking.

Runs rough in idle and sometimes on highway

Twice blew white smoke out exhaust, but other times was normal.

Check engine light comes on at times.

We don't have money for big repairs, but guess we have to do what we have to do - thought we would check with you guys first.

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Try checking your water pump. Maybe it is not functioning the way it use to function. It affects your engine temperature. If your Water pump is running ok. Then have your engine analyze by an engiine analyzer. All they have to do is hook up to ECU to a computer and analyze the whole engine performance.

Posted on Sep 02, 2008

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1 Answer

Overheating on acceleration up hills

Check the timing belt or what ever you have on that engine
Also have the coolant tested for exhaust gases,you may have
a head gasket issue
1990 or 2008 ? big different there as to wether you make
a major repair if nec

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If even possible, it sounds as though your water
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Start with a radiator flush. Could be that simple

Jul 20, 2012 | 1994 Toyota Corolla

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Heat is not working - coolant was low so filled it.... problem here... heard something about an air pocket

If you dont have an external coolant leak anywhere under your hood that has shown up on your driveway it could be the intake manifold or the headgasket leaking. Also check the thermostate to solve the heat issue.

Jan 05, 2011 | 1998 Pontiac Bonneville

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Check coolant level in the rad fluid overflow bottle.
If level is ok, check if the rad fan is working.
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It really does overheat a lot when in traffic.

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Mar 08, 2010 | 1990 Toyota Corolla

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Spark plug sound from the radiator

That sound could be whats called air-bound, need to purge system, Fill radiator, run engine for about 4 minutes at idle, turn off let cool down for about 5 min then being careful recheck coolant in radiator, top off fluid then repeat, make sure overflow bottle is full, After about 3 times when radiator stays full run about 15 min and listen for radiator fan motor coming on

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there is a coolant cap on the overflow bottle check it for seal
i'd just replace it
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