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A/C problem Posted by Ari [Email] ![]() ![]() In Reply to: Radiator Fans, Fastguy, Tue, 14 Jun 2005 11:23:35 Members do not see ads below this line. - Help Keep This Site Online - Signup |
My bet is the A/C problem is due to dirty contacts on the AC relay. It's in the relay box under the hood. The contacts get dirty and pitted, and when they get hot, the resistance increases and the clutch no longer pulls in. You can tell because the A/C clutch isn't pulled in, but the AC fan (little fan on the FRONT of the radiator) is running.
The solution is to either replace the relay (expensive) or open it up and clean the contacts with a little fine sandpaper.
As to the radiator fan, I'm pretty sure that in the later years, the radiator fans were controlled by the ECU off of coolant temp. The fact that the fan doesn't run after the car shuts down isn't a big issue - the system may not think it needs it. Nothing wrong with that. It isn't important that the fans run when the car is off. It is important that it runs when the car is on and the temp goes up. If you drive the car to warm it up, then park it and let it idle, does the fan come on? If so, it's working.
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