Question about 1994 Honda Civic

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Overtemperature THE GAGE FOR TEMPERATURE GOES IN THE RED AND INSIDE THE HEATER SEND COOL AIR,THE FAN ON THE RADIATOR DON;T RUN ,THE IDLE GOES UP AND DOWN.

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    yadayada May 11, 2010

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First dont let the needle go into the red anymore!!! i blew two heads already with my civic. this can be multiple problems. your idle is going up and down because you have a vaccume leak somewhere, it could be due to low radiator fluid, or hole in a radiator hose, your air intake has a hole, something is taking in unaccepted air causing your ile to be off. this could mean you are loosing radiator fluid in your head which is increadibly bad! if your tail pipe or antifreeze resivor is emmiting white smoke then you have blown your head and i guarentee its not cheap to fix. the problems for why your temp gauge goes up could range from a bad fan not kicking on, bad water pump, bad alot of stuff. its like a domino affect, you need to take it to a trusted mechanic before you cause more harm.

Posted on Oct 25, 2008

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This details will help.Thanks.

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I have a 2004 Pontiac Sunfire. When the car is in idle the air blows out hot and the Temperature gage rises and the car over heats. When the car is moving the air blows out ice cold and the temperature...


Sounds like your cooling fans on the radiator are not working. The fans are activated by a thermol switch on the engine or radiator reading the coolant temperature and an A/C switch. When the coolant is too hot the fans should activate cooling the system down. And, when the A/C is on the fans should also activate in order to cool the condensate so the A/C would work.

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I would check the radiator fan fuse or fuses first. If those are OK I would try to run the fans with 12 volts and a ground that I supply just to see if the fan motor(s) actually run when powered. If the fan don't run when powered then the fans are bad and will need to be replaced. If the fans do run when you power them manually, then something is not allowing the power to activate, like a relay, control unit, or wiring.

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I have a 2003 chevy impala. just changed the thermastat because the temperature was fluxuating. Since changing the thermastat the temperature gage constantly read in the red, however the coolant level...


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