bucking at 45mph

[pwrhws]

I looked in the archives and can't find anything in regards to an annoying buck at 45mph.

I had fixxed one years ago and I cannot remember what it was.

The egr is disconnected.

At 45 mph after the converter locks you can fell the miss or stumble or buck while cruising. What am I missing. Car runs fine everywhere alse.

 

[Intercooler]

Dumb answer but FP.

 

[scottyb]

Not sure which one did it, but mine went away after RA chip and fuel pump install.

 

[pwrhws]

the fuel pressure is fine. I thought it was egr but it is already disconnected.

 

[scottyb]

Originally posted by pwrhws
the fuel pressure is fine. I thought it was egr but it is already disconnected.

Is it programmed for no EGR?

 

[John Larkin]

TCC, even though locking initially, could be locking and unlocking. That's what bucking would lead me to believe on the front end. I've tested mine through the brake switch but I can't remember how it was done; Steve Wood talked me through it. I had to clean the contacts in the switch and it was better. You could find the procedure on a search under my name. It was right after BG about a month ago. Or was it email? Hmmm....