Hi, I own a 98 sentra and am in desperate need of help.

The car started bucking a few weeks ago, only when the engine is hot, only when pushing on the gas pedal. It occurs randomly between like 1000 rpms to 3500+. It does seem to do it at lower revs when it's hotter outside, and somehow even when I'm at 3500rpms and it starts bucking if i release the gas without pushig on the clutch, it stops.

I receive no error codes from the computer. The MAF was changed, the distributor cap, wiring and plugs as well.
There is a noise coming from the left part of the engine, which I believe is causes by the upper timing chain tensioner.

The car has 260000+ km on it, whant can cause that jerking/bucking?

Thanks a lot

John

 

Unfortunately for you, this can typically be the result of a trasmission failure. You should be able to pick up a used tranny at a wrecking yard and have a tech install it.

good luck

-J