Question about 1994 Chevrolet Suburban

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Put a new compressor orifice tube drier and an expantion valve evac the system holds 4pounds 134 it does not cycle it runs continually

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  • kyle
    kyle Sep 02, 2010

    Have you put a set of gauges on it? If yes what is your high and low sided reading?

  • Don Spaulding Sep 02, 2010

    yes I had gauges high side was 125 to 150 low side 40

  • Don Spaulding Sep 02, 2010

    yes I did put gauges on the low side was 41 the high side 110

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Both sides are to low. High side should be closer to 350psi and low side should be around 65psi. Im thinking you didnt but enough 134a in (should of used around 5.3 cans) or you have a leak that bleeds off at a certain pressure. Get a can of stop leak with leak detector die put that in turn A/C on max drive it for a day or to then in the evning when its starting to get dark take a bright white LED flashlight and inspect all A/C parts if you have a leak the die will luminate allmost glow. Try that and let me no what the results are.

Posted on Sep 03, 2010

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