Question about 2000 Pontiac Grand Am GT

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2000 grand am gt. turn signals working sporadically, heat working occasionally and cooling fans not working.

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Fuse box under hood has problems with corrosion clean it well

Posted on Nov 13, 2010

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1 Answer

2000 grand am gt over heating radiator fans not turning on


Overall Cooling fan operation is managed by the powertrain control module (PCM). Three relays control fan motor operation. In the underhood junction block, the 30A COOL FAN 1 fuse feeds power to (left) fan control relay 1; 15A COOL FAN 2 fuse feeds power to (right) fan control relay 2. The mode control relay determines whether the left fan, the right fan or both fans are turned on. If the two fuses are OK, the problem is a defective fan relay(s) or the PCM

Sep 28, 2012 | 1999 Pontiac Grand Am GT

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I have a problem with the turn signals


Someone will have to do a circuit test to find out where you are loosing voltage when it fails to work. Could be the multi-function switch.

Aug 19, 2012 | 2000 Pontiac Grand Am GT

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2000 grand am over heating and no heat


if the car is overheating then there is air in the system causing the no heat problem.the overheating problem could be caused by the cooling fan not working at the radiator,or you have a bad thermostat or you have a headgasket problem with the motor.make sure the cooling fan is working this is a common problem if its not working the the motor will usually have to be replaced.if the thermostat hasn`t been changed it could be sticking closed causing the overheat condition so it will have to be changed.if its not either of these then you will have to have a block test done to see if you have a bad headgasket.

Oct 26, 2011 | 2000 Pontiac Grand Am GT

2 Answers

What makes the cooling fans turn on?


there is a temperature sensor that feeds the ecm(computer)a signal to let it know if the motor requires cooling operation at a predermined temp,which the ecm sends a signal to the cooling fan relay to turn on the cooling fans.when the temp lowers to a predetermined temp the signal is turned off to the ecm and the ecm turns off the signal to the fan relay to turn off the cooling fans.

Sep 18, 2011 | 2000 Pontiac Grand Am GT

1 Answer

2000 grand am overheats when the car is idle when


If you have A/C, turn it on. The fan(s) should come on immediately. If nothing happens, check that the fan(s) turn freely by hand and don't make any noise (from a bad bearing). Also check the fan relay and fuse. If the computer has a problem, it should show that it has one when a scanner is hooked up to it. The temperature sensor sends a signal to the computer and the computer tells the relay to turn on the fan(s).

Oct 20, 2009 | 2000 Pontiac Grand Am GT

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99 grand prix 3.8 over heating


sound like you have a head gasket problem take it to your nearest smog inspection station have them test for hc in your radiator

Sep 23, 2009 | 2000 Pontiac Grand Am GT

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2000 Grand Am Gt 3.4 V6 keeps overheating,


Thermostat, cooling fans, water pump, rad (not plugged wirth scale)

Jul 19, 2009 | 2000 Pontiac Grand Am GT

1 Answer

2000 pontiac grand am se v6 3.4 ltr My car keeps getting extremely hot, it has over heated in the past but since I've done all this work I shut it off before it gets that bad. I've noticed that the 2nd...


check the thermal switch for the second fan.disconnect the fan first and put 12v to it and see if it works.these are things i would check....fuse,relay, fan thermal switch(usually on the radiator,,and the fan itself.one fan is the cooling fan,the other fan comes on with the air conditioning.

Jul 03, 2009 | 2000 Pontiac Grand Am GT

1 Answer

Cooling fan wont turn on on my 2000 grand am changed relays and temp sensor


are you having a temperature problem? i heard that the cooling fans only come on at high temperatures, around 230F.

Jun 13, 2009 | 2000 Pontiac Grand Am GT

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