AC Help??????

[N8NQU]

I got the compressor installed and working great,now here is my dilemma. The light comes on the dash and I have no power at the AC clutch.All fuses are okay but I don't know if it's any others besides the fuse panel,for right now I have jumped the clutch and it does blow cold air.Can anybody help??????I like to put it back to factory spec.Thank you.Bill
BillN1ass@gmail.com

[FestYboy]

sounds like you have a bad relay (or relay control)... that switch powers a relay to the clutch. time to start tracing wires.

[N8NQU]

Is a wiring diagram available for the AC anybody for 89 carby??????
BillN1ass@gmail.com

sounds like you have a bad relay (or relay control)... that switch powers a relay to the clutch. time to start tracing wires.

[FestYboy]

yes, but we need to know if it's factory or dealer installed a/c

[N8NQU]

It's factory installed.

yes, but we need to know if it's factory or dealer installed a/c

[Team Lightning]

There are 3 relays plus A/C control amplifier in the circuit. Can you get your hands on a Haynes manual? It would help a lot. It has the wiring diagram for an 88-89 factory AC. Autozone had them for about 15.00, when I bought mine.

[N8NQU]

Is the 1990 ford factory manual the same with 1989??

There are 3 relays plus A/C control amplifier in the circuit. Can you get your hands on a Haynes manual? It would help a lot. It has the wiring diagram for an 88-89 factory AC. Autozone had them for about 15.00, when I bought mine.

[FestYboy]

no, not at all. 90 and up are all EFI, they share nothing with the carby harness

[N8NQU]

I'll trade somebody the 1990 factory ford festiva manual ( both books) for a complete 1989 set.Bill

no, not at all. 90 and up are all EFI, they share nothing with the carby harness

[Movin]

There is a hidden thermostat behind glove box and a high pressure cut out switch on the high side line. Both are two wire and in the clutch circuit and can be jumped to engage clutch.
The thermostat fails most but you have introduced a lot of possibilities.

[N8NQU]

I'll have to look behind the glove box,Thank you.

There is a hidden thermostat behind glove box and a high pressure cut out switch on the high side line. Both are two wire and in the clutch circuit and can be jumped to engage clutch.
The thermostat fails most but you have introduced a lot of possibilities.

[F3BZ]

here are all the A/C pages in order of presentation from the 88 troubleshooting booklets that are plentiful, cheap, and invaluable on ebay that no one seems to buy.

[bravekozak]

You could have used the search engine to find the 89 wiring diagrams.

[Movin]

The location diagrams are not with our stickied electrical.

[navdoc101]

Question: is there a switch/POT to lower A/C temp.?