Bucking at 1500rpm

[Nghtshd88]

Can't figure this out. Have a good bucking sensation specifically at 1500rpm more apparent when cold. Only when under load. Off the pedal or in neutral it is normal.

I put fresh plugs in no difference. No misfires at all.

I have zero issues otherwise across the board at idle good clutch. But it feels as if you are driving with a bent wheel briefly at 1500rpm.

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[Jackson1320]

Throttle body or pedal sensor going bad does this

 

[CSYOTE]

Mine does this as well...subd for solution

 

[oneheadlite]

....well the car is named after a horse, so.........................................

 

[Zrussian13]

That's your mustang bitching and moaning asking you "why on earth are you driving me around at 1500rpms?"

 

[PC_GUARD]

Throttle body or pedal sensor going bad does this

Mine does this to an extent, more noticeable in sport and track. When accelerating at temp its mostly fine, but there is a sense of "stepping" as I accelerate. I figured it was in the tune in someway. It makes sense the pot could go bad on the pedal.

 

[Mdtaylorjr]

I had this issue on my 17 after adding the gt350 mani and tb. A tune revision sorted it out and the car ran great.

 

[Nghtshd88]

It was not the tune.. it got worse and really in my experience felt like a bad coil. $400 later and new coils 2 days ago it runs perfect again and feels better across the board.

Really sucks the car wouldn't throw a code for this..

I also don't feel the "stepping" feeling anymore. I replaced with the factory coils. My last 5.0 had 93k miles and no issue with the coils.

Im sure a better tune may help even more but very satisfied with how it is now.

My next step would have been trying a new pedal sensor and swapping the TB.

 

[768mph]

My car has done this since Ive purchased it, and a KAM deletes it... but will come back. In the Dealer this Monday it goes (again).

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