Question about 2003 Chevrolet Impala

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My Impalas heater blower wont work some of the time ?

My Impalas heater blower wont work some of the time.When it is not working,the cruise light comes on? When the cruise light goes out the blower comes back on?Any ideas?

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Posted on Jan 02, 2017

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SOURCE: ac blower will cut off and cruise also will shut off

I JUST HAD THE SAME PROBLEM WITH MY 2002 MONECARLO SS AND IT WAS THE IGNITION SWITCH. EASY TO INSTALL

Posted on Aug 06, 2009

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SOURCE: My 2004 Chevy Impalas blower won't come on until 5 or 10 min. Show me how to change the blower, Please

It sounds like a loose connection. When it warms up, the heat causes expansion and allows the circuit to be completed. This could be at the resistor pack / speed control. In any case, you might want to read this discussion:

http://www.topix.com/forum/autos/chevrolet-impala/TRDB7UFM1J0DRVMLD

Good luck!

Posted on Nov 23, 2011

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1 Answer

Cruise control doesnt work the light doesnt even come on


Fuses are a great place to start, if not fuses the actual cruise control switch may be to fault. Rear heater do you get heat out the front and if so is there a fuse for a rear fan maybe a blower.. Let me know

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Sounds like someone needs to do some more troubleshooting first. Changing the cluster is not a simple matter since your mileage will be different. And the cluster is on a different circuit that the ac so one should not affect the other.

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I can't diagnose unless you can do some testing? This is part of diagram for automatic hvac. At the blower motor, terminal B is voltage, terminal A is ground. Use a test light, check voltage and ground with hvac on, Have to check when problem is ongoing. If good voltage and ground with no blower action, suspect the blower motor is faulty. Of course, if your missing voltage or ground, have to track that circuit. Faulty blower motors may run intermittently. When problem is ongoing, hvac on, you can try tapping blower motor with screwdriver handle see if it starts running, if it does, I suspect the blower motor has a problem. Check hvac trouble codes, where applicable.
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1 Answer

My 2004 chevy impalas heater only works on the passenger side and not the drivers side. whats wrong and where can i buy the parts for that problem. thank you


You can start by checking to see if there are any blown fuses: There is a fuse panel on the drivers side end of dash.Open cover and check AC/Cruise and DR LK and LH HTD

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1 Answer

My 2003 Chev Impalas cruise control does not work, all fuses are good.


check to see if a vacuum hose come off of cruise control unit under hood.

Sep 04, 2010 | 2003 Chevrolet Impala

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Hi Adam,sounds like your blower motor resistor is bad,it controls your blower motor speed.Here's a link on how to replace,read the beginning and it will explain how the system works,as it says,their a different types for your vehicle so remove and take to Autozone and match it up with a new one. Repair Guides Heating And Air Conditioning Blower Motor AutoZone com Here's a link to some new one's. Blower Motor Resistor

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My heater only work on high and will not blow out defrost


IF THE BLOWER MOTOR ONLY WORKS PN HIGH THEN YOU NEED TO REPLACE THE BLOWER MOTOR RESISTOR LOCATED ON THE SAME HEATER BOX AS THE BLOWER MOTOR

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1 Answer

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I don't think they are related

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1 Answer

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