Question about 1999 Chevrolet Cavalier

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I have a 1999 chevy cavalier and the cooling fan will not start

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  • dullcrayon May 11, 2010

    you do know its not suppose to come on until heated up

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  • Chevrolet Master
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CHECK COOLING FAN FUSE AND RELAY.IF BOTH GOOD SCAN CAR TO CHECK COOLANT TEMPERATURE SENSOR FAULT CODE.THE PCM AND COOLANT TEMP. SENSOR IS WHAT CAUSE FAN TO RUN AT CERTAIN TEMPERATURE.IF ALL IS GOOD.HOT WIRE COOLING FAN USING JUMPER WIRES TO BATTERY.IF FAN DONT RUN REPLACE FAN MOTOR.IF FAN RUNS YOU HAVE SHORT OR BROKE WIRE IN THE COOLING FAN ELECTRICAL CONNECTOR.

Posted on May 06, 2010

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  • Expert
  • 202 Answers

Check the coolant fan relay, located underhood in fuse and relay box.

Posted on May 06, 2010

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Posted on Jan 02, 2017

ZJLimited
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SOURCE: where is the iat sensor located on a 1999 chevy cavalier 4cyl

The Intake Air Temperature (IAT) sensor determines the air temperature inside the intake manifold. Resistance changes in response to the ambient air temperature. The sensor has a negative temperature coefficient. As the temperature of the sensor rises the resistance across the sensor decreases. This provides a signal to the PCM indicating the temperature of the incoming air charge. This sensor helps the PCM to determine spark timing and air/fuel ratio. Information from this sensor is added to the pressure sensor information to calculate the air mass being sent to the cylinders. The IAT is a two wire sensor, a 5-volt reference signal is sent to the sensor and the signal return is based upon the change in the measured resistance due to temperature.

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Fig. 1: The IAT sensor is located in the air cleaner outlet tube-2.2L engine and 2.4L engine

Hope helped.

Posted on Apr 11, 2010

  • 272 Answers

SOURCE: 1999 Chevy Cavalier A/C blows hot air

More likely the recharge blew a o-ring and you have a leak. When your Cavalier was blowing hot air and a recharge fixed it that means it was low on freon which lets o-rings dry out, go back to the shop and have them leak test it. They use a pressurized dye to find the problem. If it's blowing it's not the cooling fan relay, they may have meant compressor relay but I'd have a leak test done first it's not expensive and easier that chasing unknown possibilities.

Posted on Jun 03, 2009

  • 12 Answers

SOURCE: Biggest problems with the 1999 Chevy Cavalier?

Well the biggest problems for the 98 and 99 cavaliers are that they mess up from the timing chain,..they make a rattling noise on the right side underneath the fender.

Posted on Jun 23, 2009

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My 1999 Chevy cavalier started over heating and I


Probably a faulty coolant temperature sensor.

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Sounds as if,the cavalier,may have an internal blown head gasket.

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Looking for location of cooling fan relays on 1999 chevy cavalier


the relay is under the hood behind the air cleaner box, their is a tab in the front and back of cover push them away from the cover and pull straight up, If you are standing at the drivers tire it should be the 3rd. relay in from the right and they cost about $9.00. hope this helps

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Where are the schematics to the relay or coolant temperature sensor for 1999 chevy cavalier


It's located on the left top front of the motor. It's threaded into the coolant tube.
If you're having trouble with your electric radiatior fan, if you disconnect the wire plug from it and if the fan is OK, it will start running after 5 seconds or so, if the fan doesn't start it's more than likley the temp. switch.

The electric fan should run all the time when the air conditioning is on.

Jun 04, 2010 | 1999 Chevrolet Cavalier

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A/C blows hot on 1999 Chevy Cavalier


That could be the case. The other problem could be that you are losing freon for some reason. Find someone who can check the freon level for you to make sure that it is not leaking. The valve to fill the freon can get bent which allows for the gas to escape and then you run into this problem.

Jun 03, 2009 | 1999 Chevrolet Cavalier

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1999 Chevy Cavalier A/C blows hot air


More likely the recharge blew a o-ring and you have a leak. When your Cavalier was blowing hot air and a recharge fixed it that means it was low on freon which lets o-rings dry out, go back to the shop and have them leak test it. They use a pressurized dye to find the problem. If it's blowing it's not the cooling fan relay, they may have meant compressor relay but I'd have a leak test done first it's not expensive and easier that chasing unknown possibilities.

Jun 03, 2009 | 1999 Chevrolet Cavalier

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1999 Chevy Cavalier Z24 2.4L cooling fan inoperative


Probalby not, seeing that's what's telling your over heating. it wont be a bad idea to remove it (be carefull of hot fluid) and clean it off and put it back in. (wouldn't hurt anyways) but this problem is most likly a falty relay form the PCM to the fans. wireing might be corroed and need to be cleaned. check the fans for power and gorund with an omh meter.

May 30, 2009 | 2001 Chevrolet Cavalier

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