Hesitation to accelerate

[Arv]

Hi all:

I had posted this under the engine, drivetrain forum, but didn't get any
response. So posting it here, just in case someone has run into similar prob.

I have this problem for few years and I can reproduce it at any
time. What happens is, if I am park at a place with WHEELS TURNED OUT
after going in a circle to park the car face out, when I come back,
and try to drive the car, it just doesn't want to move when I
press the accel. Also, the engine doesn't rev-up as I press the accel.
The engine kind off misfires.

I have to straighten the wheels and let go the accel so the car starts
rolling in idle and then when I press the accel slowly, it starts moving
again.

Why is this happening? Could it be the ps pump or tranny
kickdown switch?

Rarely it happens when I am parked with wheels straight also.
Sometimes I hear some clack clack noises underneath the car
and then it starts picking up the speed again. The problem
happens only when you are trying to accel from 0 speed.

I have changed tranny oil, filter and also new fuel filter recently.
Just put in the injector cleaner too. I also have new spark plugs
and wires.

Any help to solve this prob is greatly appreciated.

Thanks,
Arv.

 

[jberks]

what car is it?

 

[Ron Palfrey]

C280 1994 looking at his other threads

 

[jberks]

unrelated issues I'd suspect. Assuming the PS pump had siezed, it would simply snap the belt or would squeal like a piggie. Thats the only connection between the engine and steering aside from ESP but I can't see why that would interfere.
That said, perhaps completely shot mounts and the engine being out of line ...
I'm guessing really.

 

[greenfingers]

Don't know if you have traction control or not, but if so, is a wheel sensor causing a misreading?
Are the wheels/suspension original equipment?
Surely this has got to be electronics related - maybe diagnostics would reveal some fault codes?

 

[Arv]

Well, the engine mounts are good. I don't have auto traction control.
The struts and suspension is all orginal. They are still in good condition.
Don't have that constant humping while driving or stiffness. I keep a
check on everything every few months.

Thank you all for your replies.

Any other thoughts? Remember that it happens only while accel from a dead
stop and I can reproduce it anytime with my wheels turned out all the
way in either direction, rarely it happens with wheels straight also.

Thanks yet again,
Arv.

 

[BlackC55]

Sounds like a possible missfire under load. Check the ignition circuit for a possible cause; otherwise its a strange fault????

 

[Arv]

I agree. It's a very strange fault. I have new plugs and wires. The car
starts like a champ.

Thanks,
Arv.

 

[BlackC55]

Air mass???

 

[mattkh]

Hi

When were the front disc brakes and calipers last serviced

 

[Arv]

I had cleaned the air mass sensor some time ago. I had changed the
brake pads about 18k miles ago. When you say "caliper serviced", do
you mean flushing the brake fluid and putting new fliud?

I think it is some electronics related fault. But what? That's the BIG Q.

Thanks you all again,
Arv.