2000 Ford Ranger Rough Idle/turns off when AC is on

BOURASSA

MEMBER
2000 FORD RANGER
4 CYL
2WD
MANUAL
17,000 MILES

Truck idles rough. Runs a little better after warmed up. When the AC is on. The engine will turn off when you are stopped/clutch pushed in. As long as you are moving the AC can be on. This has happened before. But the symptoms go away after a day or two. It has been seven days with this problem.

Monday, June 14th, 2010 AT 10:05 AM

5 Replies

JACOBANDNICKOLAS

MECHANIC
110,176 POSTS

Has the check engine light come on? Have you checked for vacuum leaks?

Let me know.
Joe

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Monday, June 14th, 2010 AT 11:25 AM

BOURASSA

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3 POSTS

No to both questions

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Monday, June 14th, 2010 AT 10:55 PM

JACOBANDNICKOLAS

MECHANIC
110,176 POSTS

I would suggest checking for vacuum leaks. Also, I would suggest checking fuel pump pressure when it's cold. If you need instructions, let me know.

Joe

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Wednesday, June 16th, 2010 AT 9:26 PM

BOURASSA

MEMBER
3 POSTS

Yes,
Please provide instructions.

Thanks!

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Wednesday, June 16th, 2010 AT 10:53 PM

JACOBANDNICKOLAS

MECHANIC
110,176 POSTS

Here is a how to video and directions for checking fuel pressure. You will need a gauge, but most parts stores will lend or rent them to you.

https://www.2carpros.com/how_to/how_to_check_fuel_pressure.htm

Here are the directions for checking for vacuum leaks. Again, you will need a gauge. Check the parts stores to see which will lend or rent it to you.

https://www.2carpros.com/dia/test_engine_vacuum.htm

Let me know if you have other questions.

Joe

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Thursday, June 17th, 2010 AT 12:11 AM