Author Topic: Throttle pulsing??  (Read 2656 times)

Camster

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Throttle pulsing??
« on: September 15, 2008, 06:14:30 AM »
Occasionally on my 04 GT,when I start to accelerate from low rpm in first gear,I experience a significant on/off throttle thing that just won't straighten out until I back off the throttle, or shift in second,etc. Ayone else familiar with this? -Doesn't happen in any other gear.Thanks.

rmodel65

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Re: Throttle pulsing??
« Reply #1 on: September 15, 2008, 05:28:43 PM »
is this a manual tranny car? do you have a broken motor mount>?

Camster

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Re: Throttle pulsing??
« Reply #2 on: September 15, 2008, 06:19:49 PM »
Manual. had the same thought,but think it's electronics related.There since the car was new.(and I've had cars with broken mounts and this behaves entirely different.
Unrelated observation(?).When coasting to a stop,exactly at 1000 rpm, it feels like the car loses engine braking.

crzylx

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Re: Throttle pulsing??
« Reply #3 on: September 16, 2008, 08:14:53 AM »
Alot of the Mustangs I've driven since the mod motor was introduced have had that problem. I've never been able to figure exactly why - but I suspect it has something to do with a lean spot in the MAF Table.

 

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