My A/c will work for a few miles and then blow hot air. nothing will stop this until I turn off the ignition one notch and then back on (truck in neutral, coasting) and then it works fine all day.

Asked by Jul 14, 2014 at 08:16 PM about the 2004 Chevrolet Silverado 1500 Ext Cab Short Bed 2WD

Question type: Maintenance & Repair

2004 GMC Serria 1500 extended cab, slt.

2 Answers

35,095

Try replacing your cabin air filter. I know on some vehicles when they get dirty, it causes the A/C to to be intermittent. Here's a short how to video: http://m.youtube.com/watch?v=L37x4b35L8U

2 out of 2 people think this is helpful.
60,265

It is possibly just vacume line leak if it just doe,s it once in awhile.Check under dash at air box up to switch for leak,s.

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