AC pressure switch

30

Asked by 1988radoc1500 Jul 09, 2018 at 04:58 PM about the 1988 Chevrolet C/K 1500 Silverado Extended Cab LB RWD

Question type: Maintenance & Repair

I have a 1988 Chevrolet C1500 with the 350 in it, converting
it from the R12 to the R134A and I had to get a new high
pressure switch ,2 prong, that is different from the stock,1
prong switch.  How do I wire it in correctly?

5 Answers

20

Have you found an answer yet? We are having the same issue and aren't having any luck. Thank you.

2 people found this helpful.
20

I cannot BELIEVE no one on this earth can answer this question????? Where does the SECOND wire need to connect? Ground? Any old ground??? How can NO ONE KNOW THIS? I have been searching for HOURS online!!!

2 people found this helpful.
170

1 wire goes to 12 volt wire from the original plug and the other one needs to be grounded, it doesn't matter which wire goes where. Just did this on my 89 silverado and it works fine.

11 people found this helpful.
10

Mikeakamanager your advice helped me solve a 2 month problem..I was actually thinking about parking my truck for the summer cause my area is well known t0 hit 100°,110, and even 117° if your ever around the coalinga ca area look me up and beers are on me.

1 people found this helpful.

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