I am hoping Daniel B. Martin will bless this thread with some input! Here's the picture.

It's cold out and I start the car up and wait 30sec. and take off. When the car ****s into second (auto) the car is going about 20mph. As I climb to about 30mph (the speed limit) and hold it steady, you can feel the car surging and the rpm bounces with the movement of the car about 50rpm; almost like I was blipping the throttle to annoy my passengers.
As soon as I have driven about 1 mile, it's gone. Now, I have just done a tune up, checked the fuel pressure, changed the PCV valve, fuel filter and ran some fuel injector cleaner through it three times with no success.
What haven't I done? I haven't cleaned the throttle body. With nearly 66k on it, I have to wonder if that is it. At first I thought it was fuel pressure, but its not as its steady and within spec. Even it that was it, it wouldn't explain why it goes away in 1 mile. At this point, it's annoying more than anything. Any suggestions on what to use to clean the throttle body if that is actually it?

Thanks,
SHUMAX

 

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You are supposed to change them at 60K miles anyways. I am not sure if this would fix the problem but it should be done anyways. Another idea is changing your transmission fluid. I think if you did both of these your car would run better as specially in the cold. Good luck

 

Shumax,

I've had this problem for the longest time now. I've posted about this before, but this seems to be an isolated issue, ie not many are having this problem. Usually only seems to happen when the car is cold/cool. I was accelerate lightly but the car would surge and buck... but then when the car is warm problem seems to go away...:-/

-Shing

 

Read...I did the tune up and have fresh plugs in already. Thanks for the suggestions though.


I wish someone knew this is annoying me!

SHUMAX