Air Conditioner Clutch Issue
#1
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1999 Dodge Ram 2500 Diesel.
Clutch stays engaged when switching fan off, air conditioner off, or in vent only mode. However,when the ignition is turned off and back on with fan off, air conditioner off, or vent only mode, the clutch stays disengaged as expected.
I have done the following:
Vacuumed and recharged system.
Pressures check okay
No leaks found
Swapped relays
Clutch stays engaged when switching fan off, air conditioner off, or in vent only mode. However,when the ignition is turned off and back on with fan off, air conditioner off, or vent only mode, the clutch stays disengaged as expected.
I have done the following:
Vacuumed and recharged system.
Pressures check okay
No leaks found
Swapped relays
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#2
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#7
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Not that I am aware of. Setting your HVAC controls in certain spots "requests" A/C from the computer. The computer energizes the control circuit, and if pressures are right, triggers the relay.
According to theory, when you turn Off the A/C, the PCM should notice that, and kill the control circuit. Think I would test that particular theory first...... make sure the control circuit IS getting turned off, when you turn off the A/C.
According to theory, when you turn Off the A/C, the PCM should notice that, and kill the control circuit. Think I would test that particular theory first...... make sure the control circuit IS getting turned off, when you turn off the A/C.
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