WHAT COULD CAUSE LOSS OF AIR RIGHT AFTER CHANGING AND PUTTING IN NEW AIR COMPRESSOR?
1997 Chevrolet Astro
Changed the air compressor on a 97 astro van 5 days ago. The front air was blowing out good cold air, but the rear air blew hot air. Now both the front and the back are blowing hot air. What could be the problem?
June 29, 2012.
June 29, 2012.
The fact that the front and back were different might be something to do with vent doors in the airbox. I realize you did not work in that area but unless the air was not cold enough to stay cold by the time it got to the back, that may be the issue.
If you have the R-134a evacuated and checked for pressure and get the proper amount of oil in the system, the expansion valve should make the cycle rate fluctuate and the technician will be able to tell if there is any problem within the system, at least with the refrigerant compression and expansion, which would rule out the valve if it is okay. I don't think a valve would affect front/rear unless you are not getting the 20 degree farenheit temperature difference which is the specification to make sure your system is working at 100%. You really need to have the system evacuated and filled as it will show any leaks as well. It will rule out enough to make diagnosis easier.
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