I have a 2001 Civic DX, Auto, ~127K, good overall condition. For the past year or so, it has been "kicking" or so on and off. For the past few months it hasnt been bad. But, just recently it has started up again pretty regularly.

What happens is: sometimes when I am doing roughly 35mph, at a certain point at which I press the gas pedal, the car starts "bucking." If I press the gas harder, it stops. If let go of the gas pedal just a LITTLE bit, it decelerates more rapidly than normal, and the throttle doesnt maintain what the speed should be at the level at which I am pressing the gas.
ALSO, when I am on the interstate doing roughly 60 mph, it is as though I am at that same threshold, but the car doesnt kick as bad. If I press the gas harder it stops, but if I release the gas pedal JUST A LITTLE BIT, it decelerates quicker than normal and doesnt maintain constant speed.

I went to Auto Zone to get the free diagnostic exam about a month ago, it said it could be the O2 sensor and/or some ignitor coil. Feeling that their machine probably wasnt very reliable, I pushed it off and the problem stopped (or lessened) for a while.

I had thought maybe the TPS, but the car doesnt idle rough, but it does idle a little low sometimes.

Any clues?

 

Did you beat on her at all? I mean it sounds like a simple transmission ordeal? Most likely something slipping.

 

probably too much VTAK!

 

check your engine mounts?

 

change your transmission fluid and run seafoam through the car, that might help a little bit

 

make sure its going through all the gears!! cuz say if it lost 4th it would explain the quick deceleration when letting go of the gas otherwise id deff. say you should replace the fluid! hows it on gas??? intersate city?
also how much rpms is it a certain speed?

 

It does well on gas. Just earlier today I was at a stoplight and the car was running a little choppy. I dont know what is going on. I will change the fluid. It runs fine for the most part besides these little hickups. Has anyone ever heard of this problem before, though?

 

watch my video and compare it to that? maybe were currently having the same problem?? haha

heres the link to my post!!

https://honda-tech.com/forums/showth...641&highlight=

 

no, I dont have problems shifting at all.

 

no no im talking about idling... i have a video further on of it doing that!!

 

clean idle air control valve ^^^^^^prelude did that