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PLEASE HELP STUCK A/C problems 2004 1500 hemi any1????

7K views 5 replies 2 participants last post by  ramvan2500 
#1 ·
I have 2004 Ram 1500 hemi that I just purchased.. The A/C does not work The orange light comes on when you press the a/c button...so when under the hood..compressor is not spinning...The 134 level is ok ...I pulled A/c clutch relay and its ok...so while the relay was out I took a wire and jumped the power where the relay go and compressor comes on gets cold and ac works fine.....but when I put the relay back in the compressor shut right off and doesn't come on?? Seems like the compressor is not getting power?? But there is power @ the relay...Relay is not bad cause i swapped them with the other ones and it works fine...ANY IDEAS ON WHAT WRONG??? HELP!! don't know what next to do....:4-dontknow::SHOCKED:
 
#2 ·
Check the relays coil side voltage across the coil with a voltmeter with the A/C button turned on, if there is no voltage than it's an issue with the wiring maybe a short or a issues with the A/C control in the dash. It is possible also but doubt it that the low side or high side pressure sensor is dead.
 
#4 ·
No the relay for the A/C clutch check the voltage at and across the coil of the relay. Relay has four contacts usually in this case it should be 4 because it is a normally open relay so you want to check to see if their is enough voltage being sent to the relays coil to operate the relay.
 
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