Question about 1999 Chevrolet Malibu

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I have a 1999 Chevy Malibu, in the summer my car constantly over heats, the cooling fan does not kick in unless the air conditioner is on

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  • leroyandkori Apr 23, 2009

    i also have the same problem with my 1999 cutlass. the fans will not turn on unles the a\c is on. when a\c is on the fans start running and the car cools down.

  • Anonymous May 06, 2009

    i have a Chevy Malibu 1999, works fine in the winter and over heats in the summer. i took off the thermostat and still remains the problems. i checked the coolant system, checked upper and lower hose system and i don't know what i am missing, is this fixable?

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Coolant fan relay

Posted on Mar 09, 2009

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2001 chevy malibu Ls - Cooling fans on constantly, fuses are good and the temp. gauge at zero. Inside fan is blowing heat so the thermostat is open. Relay? Are the cooling fans hooked in a series to...


turn ac off then the fan will go off make sure ac button if you have one isnt pushed inwait a minute fan should turn off does temp gauge inside car raise in temp after running a while

Dec 08, 2010 | 2001 Chevrolet Malibu

1 Answer

I have a 1999 Chevy Malibu. The radiator fan only comes on when the air conditioner is on. If you think it is the relay, how can I test the relay with a multi meter


The radiator fan only comes on when the car is under a load or after its been idling for a while. When you turn the AC on it puts a load on the motor so the radiator fan kicks on to prevent overheating.

Nov 18, 2010 | 1999 Chevrolet Malibu

1 Answer

1999 Malibu Cooling fans don't come on. Country driving is fine. City driving and a few stop lights and it over heats. Temp Gauge works fine. If I un plug the sensor then fans come on but Tranny and Engine...


country driving at high speeds keep engine air cooled. but in city there is not much air to cool the engine. check the sensor for the fans. relay for fans must be ok, cause you said if you disconnect sensor then fans run. replace fan sensor. also make sure there is a proper amount of coolant in system. (do this first).

May 14, 2010 | 2001 Chevrolet Malibu

1 Answer

1998 chevy malibu fans not coming on, there is no heat and antifreeze overflows


check thermostat, cooling system may be plugged. make sure water pump is working ok.

Apr 17, 2010 | 1999 Chevrolet Malibu

2 Answers

CAR RAN HOT 1999 CHEVROLET MALIBU


Several things ... best guess, in order:
1. (very likely) Radiator fan is not blowing (turn on car and a/conditioner.
When compressor kicks in, the radiator fan must blow). If it ims not blowing,
the radiator fan motor may be burned out ($40).
2. Check / replace "cooling fan" fuse ($1) and / or "cooling fan" relay switch
($7).
3. Could be (not likely) thermostat sticking shut. Replace thermostat ($20)
4. Could be radiator hose collapse (not very likely) ($18)
5. Radiator clog or hose leak (possible)
6. Head gasket broken (not likely unless you don't fix current problem) ($150)
The more detail of the symptoms, the better we can assist you.
Hope this helps!

Sep 22, 2009 | 1999 Chevrolet Malibu

4 Answers

OVER HEATS


Fill over flow bottle right to the top and run engine....watch for bubbles.
If you see bubbles you may have a bad head gasket or a possibly a cracked head.

This allows combustion gases into the cooling system and the system just can't dump that amount of added heat.

Aug 19, 2009 | 1999 Chevrolet Malibu

1 Answer

Fan relay only engages when AC is activated; fan then runs until engine cools down again


Check and see if there are two fan relays on your car .. should be on the lid of your relay box.. The air conditioner switch over rides the other because of summer driving you always need your fan running when the AC is on so it is fixed so when you turn on the Ac the fan WILL come on like it is suppose to.. thanks Jerry

Apr 21, 2009 | 2001 Chevrolet Malibu

1 Answer

2001 chevy malibu- when car starts cooling fans do not come on but then do


your coolant temp sensor on the engine block is probably faulty, however, keep in mind that if it really isn't all that hot outside they may not need to turn on. Once you activate the A/C the fans come on automatically since they have to cool the condensor...

If your car is not overheating do not worry about it.

Aug 29, 2008 | 2001 Chevrolet Malibu

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