Automotive Air Conditioning Information Forum (Archives)

JLovedahl on Tue June 07, 2011 3:40 PM

Year: 1998
Make: Chevy
Model: Silverado
Country of Origin: United States

The local Firestone store replaced the compressor in my 1998 Chevy Silverado about a month ago, and because of some fitting or tube being damaged during the job, they also had to replace the evaporator. I drove the truck on a 1000 mile trip after the AC was repaired, and the AC wasn't working...nor was the heat. I took the truck to a Firestone store when I arrived at my destination, and they discovered that the new compressor didn't have any oil in it, and that the blend door had not been properly reinstalled. They installed a new compressor (2nd one). On the way home from my out of state trip, the second compressor wasn't working....just warm air coming out of the vents. When I got home, they replaced some switch, but a day or two later I returned the truck to them because the AC simply wasn't cooling the truck. They installed a new compressor (third one), and said that it was "blowing icicles". I'm convinced that the AC isn't operating properly. Although the air is cool, it simply isn't "conditioned".....the truck cab never really gets cool, and the AC has to run at full speed on max all the time. Now my question.....could the problem be an improperly installed evaporator?

When I had first picked up the truck after the initial repair I had noticed that the lower dash cover wasn't properly attached. The mechanic said that he hadn't been able to get it back on!!!! The manager and the mechanic got it reinstalled. Is it possible that in reinstalling the uncooperative dash cover they created a problem with the evaporator, and that maybe it wasn't installed correctly the first time leading to the trouble they had in getting the dash cover back on? Thank you for your help.

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Jerry Lovedahl

HVACNY on Tue June 07, 2011 3:47 PM

Some info would be helpful..Ambient temps,System pressures,etc,etc,,

Cussboy on Wed June 08, 2011 6:36 AM

Quote
Originally posted by: JLovedahl
The local Firestone store replaced the compressor in my 1998 Chevy Silverado about a month ago.....

You had a tire place try to repair your AC????

JLovedahl on Wed June 08, 2011 11:33 AM

Yes, I've used their auto repair shop for years. Maybe it wasn't a good idea in the case of AC, and I now wish I had taken the truck to the GM dealer.

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Jerry Lovedahl