A/C went out like a light!

Asked by Aug 25, 2014 at 01:46 PM about the 2008 Chevrolet Aveo LS

Question type: Maintenance & Repair

My wife's 08 Aveo had super cold A/C.  Then like a light switch it went out.  I put the gauges on it and the low side is 90-100psi and the high side is 185-190psi.  With 90psi more on the high side I don't think that it's the compressor.  What else could it be?  Scottykilmer.com told me it was the orifice tube or the compressor.  But I can't find a replacement orifice tube online so I'm inclined to think that it doesn't have one.  Any thoughts?

9 Answers


Check the ac relay?And fuse,s.

1 out of 1 people think this is helpful.

It probably is an orifice because the low side is WAY too high and the R134 is not getting through. The low side should only be 25-45psi max. Hold on while I find a diagram




OK I could not find one for an Aveo but here are some typical generic systems and charts. Click on them for full screen






Looking at various sites you probably need a pro on this


Hello,fordnut,you not far from passing me on the board,good work.

1 out of 1 people think this is helpful.

Thanks guys. For the price of labor rates, I can throw parts at it myself and still save money.

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