My A/c is making my mustang stall !!why??? - Ford Mustang Forum
 
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post #1 of 5 (permalink) Old 07-31-2015 Thread Starter
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My A/c is making my mustang stall !!why???

My car stalls/has rough idle at stop light when ac is on but on a tiny incline works perfect why is that maybe a new fuel pump is needed?

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post #2 of 5 (permalink) Old 07-31-2015
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Originally Posted by camonteverde View Post
My car stalls/has rough idle at stop light when ac is on but on a tiny incline works perfect why is that maybe a new fuel pump is needed?

I just had a similar issue.

I was told to clean my MAF and throttle body to correct rough idle when A/C is on. I cleaned the MAF and was going to do throttle body this weekend, but it seems just cleaning the MAF did the trick. I would start with those two things and post back.


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post #3 of 5 (permalink) Old 07-31-2015
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Quote:
Originally Posted by MustangLife View Post
I just had a similar issue.

I was told to clean my MAF and throttle body to correct rough idle when A/C is on. I cleaned the MAF and was going to do throttle body this weekend, but it seems just cleaning the MAF did the trick. I would start with those two things and post back.
right.......the issue is there all along with a dirty throttle/ MAF is just more apparent with the a/c on because of the extra load on the motor.
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post #4 of 5 (permalink) Old 08-01-2015 Thread Starter
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I cleaned the throttle body seemed like it had a thick ring all around The inside looked kinda like black jello but anyways that fixed the problem
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post #5 of 5 (permalink) Old 08-01-2015
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Quote:
Originally Posted by camonteverde View Post
I cleaned the throttle body seemed like it had a thick ring all around The inside looked kinda like black jello but anyways that fixed the problem
that black ring of gunk is what was causing the throttle to stick.
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