Ok, this is sort of hard to describe.. when I drive up small hills or on flat areas in O/D, when i'm around 40-45mph and the rpm is 1500-2000, I notice the ocasional very small jolt. It can almost be mistaken for a small bump in the road, I can't tell for sure but I think it's coming from my truck, any idea what I may be feeling, doesn't seem to be a problem/hurting..

thanks,

-Bryan

 

Does it feel like the engine is missing? Hmmm, poorly worded. Does it feel like the engine is misfiring? That will cause a small jolt. I noticed it on mine before replacing my spark plugs a few months back.

 

Hmm, no I don't think it's misfiring. Is there another way I can tell if it is? The engine seems to run great though, even at low rpm's generaly so I don't know.

At first I thought maybe there was some kinda binding someplace, but I dont think so, the driveshaft/joints have been lubed recently. Probably nothing and I'm just being paranoid.. lol.

 

Are the rotor or drums warped?
Are the drums adjusted to tight maybe?

Had that happen on mine.

Otherwise I would guess engine related.

 

Are you saying this problem occurs while you are in O/D, or when you shift out of O/D?

In other words, does this happen when the tranny is about to do something?

 

Have you ever changed the fuel filter? If the engine is at a low rpm it's using less fuel, then there isn't alot of pumping going on, so therefore the engine is starving. I hope that makes sence. If there is stuff in the filter and the engine isn't using as much gas, then there is enough of a push by the fule pum pt move through the clogged filter.

 

Nope, happens when cruisin in O/D. No shifting.

 

I may change it this weekend, I've been considering it. Thanks for the input.