Weird Motion W124 M102.963 124021

[vegadonovan]

Hi all,

It happens irregularly. When travelling at highway speeds and letting off throttle the car will do this:

1) Like someone(invisible) pressing the throttle enough to keep going and NOT accelerate. And then let go totally to decelerate.

2) Again as per above

3) Again as per above ( Optional)

It will do this with 1 second and then accelerate even when I have ease off the throttle totally. I will have to hit the brakes likely to control the additional force forward.

What could have happened?

Thanks!!!

[vegadonovan]

So in summary, the car feels like rocking 2-3 times before settling into a stable state which is accelerate.

1) I have check the throttle micro switch to ensure full contact with a click sound.

2) I have ensure MAFS to be clean and non-sticky with the help of Carb cleaner.

3) I have ensure all vaccum hoses are connected and non has cracked.

4) I don't really know how to check the transmission and I don't have a 2 ton jack.

5) OVP and all fuses checked and replaced. O2 connection under driver seat has been cleaned and corrosion free.

6) ECU not checked and I have no idea how to check it.

Thanks!!!

[yal]

Between the AFM and the throttle body is a rubber boot. Its very hard to see, sometimes this boot is cracked and causes hesitation under acceleration.

[vegadonovan]

Hi,

Is it the rubber hose that goes under the engine bay FROM the ICV?

That is the one I could'nt find where the other end goes.