Acceleration Sticking Issue

[David's '01 Edge]

It has happened twice now. The first time, I thought it was my imagination. After maintaining a speed of approximately 55 mph, when I attempt to come to a stop, the brakes work (thank God), but the engine continues to rev and the truck is fully intent on not down shifting or something. The last time it happened I was in 5 o'clock traffic and my only option was to shift into neutral to avoid an accident. When I did, it made a loud thunk sound. When I shifted back into drive, the engine stopped the higher rev, but there was also a loud thunk when I shifted back into drive. Someone help!!

 

[Dylan9302]

When you say the engine continues to rev does it increase revs or stay the same? is the tranny auto or standard? when it makes the clunk is the engine still in a high rev or has it gone down?

 

[David's '01 Edge]

When you say the engine continues to rev does it increase revs or stay the same? is the tranny auto or standard? when it makes the clunk is the engine still in a high rev or has it gone down?

It's an automatic. The engine had a high rev because I shifted from drive to neutral. I'm assuming the notorious "clunk" was due to shifting from drive to neutral while the engine was at a high rpm, because when I shifted into neutral, the tach went up to 3 grand. The second "clunk" was when I shifted back into drive at the higher rpm, but then everything returned to normal.

Today it did it once. I was going about 40 mph. When I pressed the brake, I really had to hold it hard before the truck finally decided to down shift, reduce rpm and allow me to come to a stop. It is like holding your foot on the gas and the brake at the same time and trying to come to a stop.

 

[Duo-Z]

I would also like to know whats happening. My brother just bought a 99' 3.0 auto, and it started doing the same thing from the sound of it. I took it for a ride and it would maintain the RPM that you reached even if you were pressing the brake. I had to do the same thing that David did and shift it into neutral. Just to check if it was the throttle sticking I tried putting it in neutral and revving the engine and could not reproduce the effect. It only happened in drive or reverse.

 

[David's '01 Edge]

I would also like to know whats happening. My brother just bought a 99' 3.0 auto, and it started doing the same thing from the sound of it. I took it for a ride and it would maintain the RPM that you reached even if you were pressing the brake. I had to do the same thing that David did and shift it into neutral. Just to check if it was the throttle sticking I tried putting it in neutral and revving the engine and could not reproduce the effect. It only happened in drive or reverse.

The other day I had come to a full stop in a parking lot, reached for the shifter to put it into park when the truck revved to 2 grand, jolted forward and I pushed hard on the brake to keep it in check. I guess since I'm getting nothing here, I'm going to have to take it in.