Corvette C4 Forum 1984 through 1996

94 C4 A/C clutch will not engage!

Old 06-25-2016, 01:39 PM
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Join Date: Oct 2005
Posts: 7
Default 94 C4 A/C clutch will not engage!

I changed the compressor,Orfice tube and accumulator plus every O ring I
could get at.
I have a A/C gauge manifold set.
I'm showing 115 psi on low side and 130 psi on the high side with the engine off.

System was vacuumed down.

When I first entered the freon (134A) it started taking it. The clutch engaged for about 2 seconds, went off, engaged again,went off and stayed
I tried jumping the low side pressure switch and that didn't do anything.

The codes just show 09 low freon,duh!

When I disconnect the negative side of the battery it just does the same quick on off then off again (clutch)

I did it one more time and the engine actually quit after it started because I guess the clutch engaged. When I cranked it again by the time I got out of the car the clutch was not engaged.

So far I have put 2 12oz cans of 134A into the system.
I can see freon in the clear round glass between the gauges.

It's suppose to get in the triple digits this weekend!
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