AC problem

[laser01gt]

Hey all,
Last week I replaced my ac compressor due to the fact that the clutch burned up. Now my compressor clutch will not engage when I have the motor at idle with the ac on trying to add r134. Once the clutch would not engage I unplugged the harness from the compressor and realized that the harness is not getting power!! My mechanic friend says that it is the CCRM which controls the WOT ac cutoff feature. My quesion is: why would CCRM fail at the same time as the compressor? I just want to make sure this is the case before I drop $200 on a new CCRM. Thanks in advance.

Aaron

 

[blck96svt]

i highly doubt the ccrm is gonna fail on 2001, make sure you have a full charge of freon, if not then the compressor wont kick on to prevent damage to the rest of the system, i would start with with gauges and checking your pressures with compressor off the hi side should be between 160-210 and lo side should be between 45-60, if you have good pressures then check your cycling switch,(they fail a lot) it should be mounted on top of the reciever dryer near the firewall unplug it and jump the connector with a paper clip and see if the compressor turns on. this will bypass everything and send juice directly to the compressor regargless of pressures or anything. that should be start.

 

[Mike97gt]

the a/c low side switch will not let the compressor activate if the freeon level is too low, this is done to prevent damage to the a/c compressor.. If you want to test this you can pull the connector off of the low side presure switch ( mounted on the accumulator) and jump the two connector terminals, the compressor should run when you do this, if not you have a possible ccrm fault.

BTW.. I strongly recomend you have the a/c system properly filled with a a/c machine, this way it will get evac done to it to remove air and other contminates plus you need to add oil to the system. It's a really bad idea to just refill a opened system with freeon cans.