Lugging on Acceleration / Deceleration

[Rusty]

The best way I can describe this, is after a quick high speed acceleration when passing- around 95-100MPH, when I let off the gas pedal, instead of a smooth coasting -down, I feel a sort of abrupt stumble or lugging effect. Also when suddenly accelerating from 2K RPM, or around 25-30 MPH it very briefly hesitates , then a slight slamming sensation occurs. Almost like there's some backlash.

There's also noticeable feeling when the cruise control is switched off while at higer speed. Otherwise, gradual acceleration / deceleration seems fine.

Anybody have an idea what's causing this ? Could it be a sign of future tranny problems ?

[mhinchley]

Tranny fluid level ok? Could be a tranny problem...........could also be CV Joint issue.

[PAUL T]

Any diagnostic codes? Check tranny fluid, see if it is nice and red or have a burnt smell.

[growe3]

Sounds like a fuel delivery problem.

You need to check the fuel pressure, should be around 45 lbs at idle and increase a bit with quick throttle jabs.

Could also be the Throttle Position Switch. Reset as per the manual.

or go here Idle Learn Procedure

-George

[Rusty]

Sounds like a fuel delivery problem.

You need to check the fuel pressure, should be around 45 lbs at idle and increase a bit with quick throttle jabs.

Could also be the Throttle Position Switch. Reset as per the manual.

or go here Idle Learn Procedure

-George

Thanks for the comments guys.

I haven't noticed any unusual codes. I'll check tranny fluid situation and throttle position switch.