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A/C cooling, but turns off sometimes

My a/c is cooling, but the a/c turns off by it's self. I turn the blower off and then turn it back on and the a/c comes on for a while.

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AC and Cooling Fans Not Working

Try installing a jumper across the N/O terminal at the relay socket. Temp sensor in the radiator or in the thermostat housing supplies the signal for the relay the other relay signal is supplied by A/C in on position. both fans will run continuous with A/C on. One fan runs intermittent relative to water temp. Be careful not to blow a head gasket. If you leave the jumpers in place, the fans will stop when the ignition is turned off, save the engine until you isolate the relay signal problem. then simply remove jumpers and reinstall the relays

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99 Tahoe blower works sometimes when it quits there is no power to switches at the controls it may turn on going down the road bt it's self is this a switch problem?

take a look at the connector that feeds the resister that mounts next to the fan under the dash below the glove box the connectors over heat and become loose making the connection fail

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The blower doesn't blow when I turn the air or heat on but the blower in the back works fine the knob from higg to low is stuck in the middle and I can't get it to move

Have you tested the front blower motor with a test lead hooked to 12 volts? Use a length of lamp cord and make up a jumper to test the blower, replace as necessary. Also inspect the connector to the blower for signs of melting or burning, replace as necessary.

Apr 20, 2012 | 1999 Mercury Villager

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1999 Buick Le Sabre Custom, My heat, and defrost work fine, but my car won't cool when I turn on the AC. My air conditioning is charged and the blowers work fine but why wont they blow cold air?

The first I would do is check if the a/c compressor is working. Start vehicle then turn a/c on in vehicle full power and then off/on a couple of times if you hear a click when turned on then compressor is working properly.If this is the case then you need freon.If not turning on,first check fuses,for location refer to owners manual,if not fuse then compressor needs to be checked which then you will need service manual purchase at local autoparts store.

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1 Answer

I have a 2003 jeep Liberty (freedom Edition). My blower motor doesn't work. it comes on sometimes intermittently. I tried changing the Blower motor resistor but that wasn't the problem. I changed the...

most likely the blower motor it's self needs to be changed! Instructions below!
  • Disconnect the negative battery cable.
  • Disconnect the blower motor lead connector from the wiring harness connector.
  • Remove the blower motor cooling tube from the blower motor.
  • Remove the four retaining screws.
  • Turn the motor and the wheel assembly slightly to the right so that the bottom edge of the mounting plate follows the contour of the wheel well splash panel.
  • Lift up on the blower and remove it from the blower housing.
  • Installation the new blower motor by reversing the removal steps.
  • Connect the negative battery cable.
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    The heater blower on our Acura TL 2004 car seems to come on and off. while the car is running and the blower is on, i can hear the blower coming on and then turning off. after sometime it seems to come on...

    this could be because of the blower is either got hot and trying to cool itself down and starts back up when its cool or you might have a lose connection to the blower.

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