air conditioning
07-21-2011, 05:09 PM
#1
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air conditioning
Hi All! Thanks for having me!
2000 Dodge Ram Van 2500 318 single air conditioning
Is there any electrical switch actuated by vacuum related to the on-off
function of the a.c. compressor clutch?I have no blown fuses -dash,under
hood,and the relay I am guessing is ok.I have no electricity at the pressure
switch when a jumper wire is tried.Refridgerant has never been an issue,the
periodic topup.
I ask about a vacuum fault as all was well before an emmision check this past
early spring,and the a.c. and or the van has not been operated until the
current heatwave.
ThankYou very much for any input.
Brent-fxman
2000 Dodge Ram Van 2500 318 single air conditioning
Is there any electrical switch actuated by vacuum related to the on-off
function of the a.c. compressor clutch?I have no blown fuses -dash,under
hood,and the relay I am guessing is ok.I have no electricity at the pressure
switch when a jumper wire is tried.Refridgerant has never been an issue,the
periodic topup.
I ask about a vacuum fault as all was well before an emmision check this past
early spring,and the a.c. and or the van has not been operated until the
current heatwave.
ThankYou very much for any input.
Brent-fxman
07-21-2011, 09:14 PM
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Yes,the ignition switch was on ac switch for hi cool as always ,tried a jumper wire at the low pressure switch as suggested from another site,tried 2 or 3 times-no electrical current.The ac compressor clutch should click or try to engage-engine off.
07-21-2011, 09:17 PM
#5
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Correct,there is no ac compressor clutch engagement at all.The vacuum for actuating
vent doors sounds normal,engine running, and the blower motor runs fine.
vent doors sounds normal,engine running, and the blower motor runs fine.
Last edited by fxman; 07-21-2011 at 09:19 PM. Reason: spelling
07-21-2011, 09:54 PM
#6
Mopar Lover
I'd say check all the wiring to the clutch... Have you checked for voltage?
And with the jumper wire in at the pressure switch, did the clutch cycle on or no?
07-22-2011, 05:43 PM
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I'd start by making a jumper [short length of wire, and 2 small spade terminals] and jumper across the A/C relay. Then lets see where you are. I'm having similar troubles with an 01 Sebring. Looking like a bad clutch coil. Unfortunately, the clutch coils are $250... But they throw in a FREE COMPRESSOR with it!!!!!
07-22-2011, 07:10 PM
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I'd start by making a jumper [short length of wire, and 2 small spade terminals] and jumper across the A/C relay. Then lets see where you are. I'm having similar troubles with an 01 Sebring. Looking like a bad clutch coil. Unfortunately, the clutch coils are $250... But they throw in a FREE COMPRESSOR with it!!!!!
again ,no current at all.If you mean another approach I'll try it.
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