How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Gary Your Own Question
Gary
Gary, ASE Certified Technician
Category: GMC
Satisfied Customers: 15704
Experience:  GCM master tech over 25 years
19513769
Type Your GMC Question Here...
Gary is online now
A new question is answered every 9 seconds

Transmission changes gears different at low rpm, soft shift

Customer Question

transmission changes gears different at low rpm, soft shift almost liking slipping.
in a 2004 gmc are the shifting control by computer
Submitted: 2 months ago.
Category: GMC
Expert:  Gary replied 2 months ago.

welcome

my name is Gary

yes the shifting is controlled by the computer with the computer using TPS and VSS information to know when to shift it

was the bottom of the pan clean ?

it shifts higher RPM ? and just shifts sloppy or weakish at lower RPM ?

Customer: replied 2 months ago.
that what it does
Expert:  Gary replied 2 months ago.

was the bottom of the pan clean no clutch debris or metal or brass at all ?

Customer: replied 2 months ago.
what is vss
Customer: replied 2 months ago.
do not call I got what I need
Expert:  Gary replied 2 months ago.

vehicle speed sensor

if there are NO codes and the speedometer operates fine and there was no debris in the bottom of the pan and new fluid usually reprogramming the computer with updated calibrations does the trick

we have had a few rare ones with TPS issues but usually would set codes or you could capture it reading erratic with a scan tool

dont forget to rate us here

you can always get me back for FREE for any follow up any time with this question even after you rate me here at Justanswer

if you have any questions please ask as i do not get credit for my work until you rate me here at Justanswer

Expert:  Gary replied 2 months ago.

dont forget to rate us here

you can always get me back for FREE for any follow up any time with this question even after you rate me here at Justanswer

if you have any questions please ask as i do not get credit for my work until you rate me here at Justanswer