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Re: looking for some A/C help...
Posted by Kappy (more from Kappy) on Mon, 16 May 2005 03:19:06
In Reply to: looking for some A/C help..., Patrick in Abq, Sun, 15 May 2005 18:34:39
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Do you have gauges? What is the pressure with system not running? If lower than 70 psi or so, you may have a leak preventing the compressor from coming on or you did not get the r134a into the system.
Your car has a temperature switch on the compressor body, a pressure switch attached to the receiver/drier, another pressure switch on the bottom right rear of the condensor and an anti-frost switch on the top of the evaporator housing. Check the connections to all. You can jump the anti-frost switch to eliminate it diagnostically. Pressure switch failure does not appear to be common.
First, if pressure in the system when not running is greater than 70 psi, try recalibrating the ACC. Next check for 12v at the compressor. Is the condensor fan running but not the compressor? If so, whack the clutch pulley with a hammer. Hold onto the hammer! If not, suspect the relay behind the glovebox. Or the ACC unit.
posted by 64.222.92...
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