2001 Mustang 3.8 Acceleration Studder - Ford Mustang Forum
 
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post #1 of 3 (permalink) Old 04-02-2011 Thread Starter
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2001 Mustang 3.8 Acceleration Studder

I noticed when its hot that i'll be driving and after my car reaches its optimum temperature if i accelerate hard the car jumps like there is a misfire.
First time it happened, i popped the hood and noticed that the vacuum hose from the intake to the valve head was not connected. I am certain it was on before. I re attached the hose and checked the fluid levels and everything seemed normal after that. Then yesterday it did it again. All my gauges were in normal ranges so i was curious what was up. i stopped to fill it up with gas, saw everything looked normal and drove away fine.
I never had this happen when it was cold out. Only when its 85+ degrees

Has anyone had this problem??

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post #2 of 3 (permalink) Old 04-02-2011
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Does it do it under normal driving speeds, cruising speeds. When your driving the speed limit for a few seconds? If so please let me know what the cause is I'm having the same issue and have dropped over 300.00 and still havent figured it out.

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post #3 of 3 (permalink) Old 04-02-2011 Thread Starter
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Usually it does it under slight acceleration. For example im doing 40 and i shift up to the next gear and i feel it stumble a bit. If you accelerate extremely slow it doesn't do it.

If im just doing 60 on the highway it wont do it without giving it more gas.
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