Question about 2003 Chevrolet Trailblazer Ext
I have a 02 with 4.2 six. At idle with the air conditioning on thier is a knocking noise coming from passenger side front om motor. If you turn the air off the noise goes away. when you touch the accelerator the noise is gone. the only time it knocks is at idle. I have 142000 miles, and has been rattling for a while. I have installed a new idler pully and just put a new power steerinng pump on. I was disapointed nothing changed. I would like to know if you have ran accross this problem. thanks
This is AC compressor rattle, don't worry about it unless it is really loud, in that case replace the compressor.
Posted on Oct 13, 2008
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Posted on Jan 02, 2017
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