Mrplow350

Hi. The truck does this sometimes and other times it does not. The
truck reaches high RPM before it shift into the next gear and then it
gives a 'buck'. After the truck bucks, then the light on the shift knob
starts to blink. It continues to do this until the vehicle is shut
down. Then, it might not do it again until later in the day. It does it
when the truck is warm and when its cold. I think its somekind of
module problem. comments appreciated please.

 

Ted

It sounds like it is missing a shift, and a scan tool will probably pick up
an error code relating to which gear is missing. Although it is technically
possible for the module to cause the problem, it is more likely an internal
trans concern. There is a point at which one could say "try this, i've seen
this before" but it sounds like in this case you need to go to a shop for
diagnosis.

"Mrplow350" <RobertSalmani@gmail.com> wrote in message
news:1139424717.930298.236630@f14g2000cwb.googlegroups.com...
> Hi. The truck does this sometimes and other times it does not. The
> truck reaches high RPM before it shift into the next gear and then it
> gives a 'buck'. After the truck bucks, then the light on the shift knob
> starts to blink. It continues to do this until the vehicle is shut
> down. Then, it might not do it again until later in the day. It does it
> when the truck is warm and when its cold. I think its somekind of
> module problem. comments appreciated please.
>

Mrplow350

well, i dont have any check engine light codes. i just drove it around
today and its fine. its kind of wierd