AC help needed***
Thread Starter
Instructor
Joined: Mar 2026
Posts: 123
Likes: 13
AC help needed***
Air is dead on my low mileage ZR1 Purchased. I checked all fuses and ran ac check with no codes showing. I want to jumper my AC clutch but I am confused as to which one it is as there are 2 in line, one round and one. oval. Can someone give me a pic as to its location?
Racer
Joined: Sep 2017
Posts: 378
Likes: 93
From: Alaska
I don't know the electric side of the C4 AC, yet.
But as a hobbyist, my experience has been a non functional but complete AC system, barring obvious, previous work has been low refrigerant.
What year is your ZR1?
if it's an R12 car you may have difficulty finding someone with the appropriate tools, If, however, you have a R134 era C4, any shop that does automotive AC work should be able to tell you if the refrigerant levels are reasonable.
Beyond turning the compressor hub by hand, with the engine off, there's not much specific to these I can give advice for, but at least I can bring your post to the top of the list.
But as a hobbyist, my experience has been a non functional but complete AC system, barring obvious, previous work has been low refrigerant.
What year is your ZR1?
if it's an R12 car you may have difficulty finding someone with the appropriate tools, If, however, you have a R134 era C4, any shop that does automotive AC work should be able to tell you if the refrigerant levels are reasonable.
Beyond turning the compressor hub by hand, with the engine off, there's not much specific to these I can give advice for, but at least I can bring your post to the top of the list.
Thread Starter
Instructor
Joined: Mar 2026
Posts: 123
Likes: 13
I don't know the electric side of the C4 AC, yet.
But as a hobbyist, my experience has been a non functional but complete AC system, barring obvious, previous work has been low refrigerant.
What year is your ZR1?
if it's an R12 car you may have difficulty finding someone with the appropriate tools, If, however, you have a R134 era C4, any shop that does automotive AC work should be able to tell you if the refrigerant levels are reasonable.
Beyond turning the compressor hub by hand, with the engine off, there's not much specific to these I can give advice for, but at least I can bring your post to the top of the list.
But as a hobbyist, my experience has been a non functional but complete AC system, barring obvious, previous work has been low refrigerant.
What year is your ZR1?
if it's an R12 car you may have difficulty finding someone with the appropriate tools, If, however, you have a R134 era C4, any shop that does automotive AC work should be able to tell you if the refrigerant levels are reasonable.
Beyond turning the compressor hub by hand, with the engine off, there's not much specific to these I can give advice for, but at least I can bring your post to the top of the list.
