Originally Posted by jlsjimmij22
The air control in my car works fine for the first 3 settings, but the last and highest setting doesn't work. I try and turn the air up all the way and at the highest setting it just turns off. I'm hoping this is a relatively easy fix? Any suggestions? Thanks.
You have manual air conditioning? Is that right?
I'll look in my 98 service manual.
In the MaxiFuse Relay center in the middle of the firewall
There are 8 slots on the bottom for relays. The 4th from the left is the high blower relay for a manual AC car. The left relay is AC clutch, then HOrn relay, then Blower motor relay (low speeds through resistor set in the blower housing area), then the high speed relay. The two at the right side are high speed cooling fan for radiator, then low speed cooling fan. On my diagram the two holes between high blower and the high radiator cooling fan are empty.
Hope that helps! I had an AC relay fail on a hot day when I was in Cincy sitting in mall parking lot running the air to keep the kid cool. It was easy troubleshooting once I got home because I could switch relays!
Note the relays in there may be the same part number and you can switch two to see if replacing the high blower relay makes it work. E.g., #7 from the right is the horn relay. Use a knife underneath to lift the tab that catches to keep the relay from coming forward and pull it out toward you.