1971 ls5 ac
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Pro
Joined: Jan 2016
Posts: 534
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From: Ohio
1971 ls5 ac
Replaced all o rings, had cooler condenser repaired, new return tube from dryer, compressor checked. AC works fine when jumpered out. Then located diseling relay, changed it. No change so put a jumper wire in AC works fine. Ordered a New blocking relay next to it. If that doesn't work any info would be appreciated. By putting a jumper wire in on terminals for anti diseling relay works fine but doesn't have max blower speed.
ted
ted
Last edited by thelal1; Jul 12, 2020 at 11:16 AM.
Team Owner
Joined: Jan 2006
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From: Crossville TN
Nice list of stuff you have done. What is the problem, specifically? If MAX blower speed is your problem, that HI speed is separately fused with an "in-line" glass fuse. It is located in the engine compartment near the brake master cylinder. Look for a large orange power line with an integrated fuse.
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Joined: Jan 2016
Posts: 534
Likes: 12
From: Ohio
Fuse
That fuse is fine. With the metal cover off the blocking relay, if I manually get the contacts to make contact, max blower speed comes on. Does dieseling relay work in tandem with blocking relay. They sit side by side on blower box. I know blocking relay is bad. When I took its cover off it contained lots of rust.
