2004 impala heater not blowing changed fan and relay

Asked by Raelene Aug 24, 2018 at 03:59 PM about the 2004 Chevrolet Impala

Question type: Maintenance & Repair

My 2004 heater quit running would however
work when bang under passage side. But
not that has stopped working. Changed the
fan and the relay but still isn't working any
other suggestions as to what might be the
peoblem

3 Answers
9,730

Mike answered 6 years ago

I assume you checked the fuses, underhood and under dash the underhood fuse block will have the fuse in it for the blower but underdash has the fuse for a/c heater either one will cause your problem

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9,730

Mike answered 6 years ago

Cool next remove relay turn ignition on use test lite two terminals should get hot, if so plug the relay in and out, can you hear/feel it click? If yes unplug blower plug does a test lite illuminate? If yes check blower ground.

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