AC Compressor Died on '94 Z28
Thread Starter
Teching In
Joined: Jun 2010
Posts: 44
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From: NJ
AC Compressor Died on '94 Z28 Hey guys, I literally just got the Optispark and Intake oil leak fixed on my Camaro, and now the car has an unhealthy shake 
. The mechanic who helped me with the intake manifold job thinks the AC compressor or bearing is to blame. Tomorrow I'm going to take the belt off to see for sure, but the AC hasn't worked in the car for years so I'm thinking the compressor may have finally given out.
I checked out RockAuto for a replacement OEM part but found several ACDelco part numbers listed (roughly six). I did a quick web search and found this info:
Assuming this info is correct, I searched RockAuto for the "15-20178" phrase with no luck. I then tried "1136535" with two results. Any idea which of these 2 is the correct one?
ACDELCO Part # 1520418 {#01136535, 1520178, 19169357, 52499051} replaces 52499051
COMPRESSOR,A/C(REMAN) w/A/C MAN CONT(C60); H6 W/CLU, R134A, INCLS O-RINGS
ACDELCO Part # 1522135 {#01136535, 1520178, 89018936, 89019226} replaces 89018936
COMPRESSOR,A/C H6 W/CLU AND O-RINGS
. The mechanic who helped me with the intake manifold job thinks the AC compressor or bearing is to blame. Tomorrow I'm going to take the belt off to see for sure, but the AC hasn't worked in the car for years so I'm thinking the compressor may have finally given out.I checked out RockAuto for a replacement OEM part but found several ACDelco part numbers listed (roughly six). I did a quick web search and found this info:
LT1 AC compressor (93 LT1) (AC-Delco #15-20048) = 1136490
LT1/L32 AC compressor (94-97 LT1; 93-95 L32) (AC-Delco #15-20178) = 1136535
LT1/L32 AC compressor (94-97 LT1; 93-95 L32) (AC-Delco #15-20178) = 1136535
ACDELCO Part # 1520418 {#01136535, 1520178, 19169357, 52499051} replaces 52499051
COMPRESSOR,A/C(REMAN) w/A/C MAN CONT(C60); H6 W/CLU, R134A, INCLS O-RINGS
ACDELCO Part # 1522135 {#01136535, 1520178, 89018936, 89019226} replaces 89018936
COMPRESSOR,A/C H6 W/CLU AND O-RINGS
the compressor in question is a delco HD-6 . they are known for leaking out of the
center wear the two halves are joined . you can find them on 93-97 LT-1 motors and
the caprice- impala SS or the 94- 97 buick roadmaster . you can find them on ebay
thats how i got mine. dont buy a used one. like i said they leak after so many years
go new or reman .
center wear the two halves are joined . you can find them on 93-97 LT-1 motors and
the caprice- impala SS or the 94- 97 buick roadmaster . you can find them on ebay
thats how i got mine. dont buy a used one. like i said they leak after so many years
go new or reman .
TECH Enthusiast
Joined: Jun 2002
Posts: 634
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From: In the garage fixing LT1
If you have the tools (available on ebay) you can take the compressor halves apart and replace the seal easily, but if it is seized it is probably because there was no oil in the compressor.
