idling problem - Ford Mustang Forum
 
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post #1 of 6 (permalink) Old 12-21-2005 Thread Starter
 
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idling problem

My 95 3.8L has started acting up with very rough idle, it fluctuates between +/- 200 rpm every 5 secs approx. My throttle cable is a little loose, dou u think thats the cause?........

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post #2 of 6 (permalink) Old 12-21-2005
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Quote:
Originally Posted by gearjammer_6spd
My 95 3.8L has started acting up with very rough idle, it fluctuates between +/- 200 rpm every 5 secs approx. My throttle cable is a little loose, dou u think thats the cause?........
More likely a dirty MAF or your Idle Air Control module needs to be replaced.


Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
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post #3 of 6 (permalink) Old 12-22-2005
 
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Quote:
Originally Posted by gearjammer_6spd
My 95 3.8L has started acting up with very rough idle, it fluctuates between +/- 200 rpm every 5 secs approx. My throttle cable is a little loose, dou u think thats the cause?........
Have you tried changing the O2 sensors. Whenever I start getting bad idyling, it's been the O2 sensors each time. How many miles do you have on the sensors?
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post #4 of 6 (permalink) Old 12-23-2005
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Originally Posted by rommey
Have you tried changing the O2 sensors. Whenever I start getting bad idyling, it's been the O2 sensors each time. How many miles do you have on the sensors?

I've never had a set of o2 sensors go bad that affected idle and I've owned 4 fords with a combined 700000 miles.

Only once have a set gone bad, and all that happened was the CEL came on. It didn't affect idle at all.

Woe to him who builds his palace by unrighteousness,his upper rooms by injustice,making his countrymen work for nothing...Does it make you a king to have more and more cedar?Did not your father have food and drink?He did what was right and just,so all went well with him. He defended the cause of the poor and needy,and so all went well...But your eyes and your heart are set only on dishonest gain,on shedding innocent blood and on oppression and extortion. Jer 22:13, 15-17
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post #5 of 6 (permalink) Old 12-24-2005
 
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Quote:
Originally Posted by kscoyote
I've never had a set of o2 sensors go bad that affected idle and I've owned 4 fords with a combined 700000 miles.

Only once have a set gone bad, and all that happened was the CEL came on. It didn't affect idle at all.
Since the O2 sensors aren't that hard to take out, I'd give them a good cleaning. It can't hurt and may send a better reading to your computer. We do it quite a bit in our Ford shop. No kidding they really can effect your idle. I'm looking at one I just replaced. I wasn't able to clean it up enough to get it to work properly so I replaced it with a new one. Difference between night and day.
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post #6 of 6 (permalink) Old 12-24-2005
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Quote:
Originally Posted by rommey
Since the O2 sensors aren't that hard to take out, I'd give them a good cleaning. It can't hurt and may send a better reading to your computer. We do it quite a bit in our Ford shop. No kidding they really can effect your idle. I'm looking at one I just replaced. I wasn't able to clean it up enough to get it to work properly so I replaced it with a new one. Difference between night and day.
OH, ***** H CHRIST!! YOU CAN'T CLEAN THE O2 SENSORS!!! Use some common sense, people.
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