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-   -   odd jolt/bounce when pressing and coming off the gas pedal (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/odd-jolt-bounce-when-pressing-coming-off-gas-pedal-732559/)

DREYKO 02-21-08 10:57 PM

odd jolt/bounce when pressing and coming off the gas pedal
 
car is an 5 speed n/a
when i push the gas at any speed in gear the car bounces, as it I am not shifting correctly. It does the same when i gome off the gas.

So im thinking its the drivetrain mounts. but which drivetrain mounts? engine trans or diff?
thanks guys

SpeedOfLife 02-21-08 11:00 PM

If you don't hear any clunking noises it may be your TPS or a faulty TB part. I've had this happen once in a while only when letting off the throttle, but I haven't figured out exactly why yet. I have much bigger problems I'm still chasing down.

(NA)turalyRWD 02-21-08 11:04 PM

Without a clunk id say its most likely engine related. Is it only at speed or does it do it if free revved?

DREYKO 02-21-08 11:39 PM

only at speed in gear so it should be happening after the first half of the tranny right?

misterstyx69 02-21-08 11:45 PM

I would be checking the Drivetrain mounts,making the first Priority of the Diff mounts(the Front mount in particular)..You will hear clunking On and off the gas...if it is a engine mount it will start to Vibrate alot when accelerating,and depending on What side,it will feel like the tires have a Bad Bump in them..I had a bad Passenger mount,It would emminate right up through the floor and Feel like it was gonna shake the car right off the Road.

(NA)turalyRWD 02-22-08 11:54 AM

Yup a clunk is most likely the front differntial mount. They arent exactly known as the strongest in the world. If you can live with it id suggest a comp mount to really solve that problem.


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