why does my 92 Lincoln town car overheat only when i run the ac?

10

Asked by Jun 07, 2014 at 08:45 PM about the 1992 Lincoln Town Car

Question type: Maintenance & Repair

I just replaced the ac fan motor and the air door actuator. now the ac works great, blows
cold air. How ever now when i run the ac my car starts to overheat, and when i turn off the
ac the temp will go back to normal. anybody got an idea of what could be the problem
thank you.

7 Answers

101,415

Does it over heat while at highway speeds? Or only while in slow traffic or at idle? If only the later check that radiator fan is operating properly.

1 out of 1 people think this is helpful.
10

it only overheats when the ac is on doesnt matter how fast or slow im going. but once i turn the ac off the temp goes back to normal.

1 out of 1 people think this is helpful.
101,415

I would check the fan clutch first. Also are all the shrouds in place around the radiator? And is radiator full of coolant?

1 out of 1 people think this is helpful.
10

is replacing the fan clutch a big job?

101,415

No it's not that bad but if you not familiar with it or don't have proper tools or patience might be best to have a shop do it. With engine off grab your fan and give it a spin. It should only spin just a little maybe a third of a turn then stop. If it spins more than that it is bad and needs to be replace.

765

When did you replace your serpentine belt last. You may need a new belt.

20

My 96 Town Car is doing the exact same thing. Did you get yours fixed?

2 out of 2 people think this is helpful.

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