trans will not shift on its own

45

Asked by Mar 10, 2013 at 09:05 AM about the 1994 GMC Sierra 1500 C1500 SLE Extended Cab SB

Question type: Maintenance & Repair

i just put a rebuilt trans in my truck and its doing the same thing my old trans did,it won't
shift at all if i put it in overdrive but if i start out in 1st gear then i can shift in to 2nd but
thats it

2 Answers

20,425

the Vehicle speed sensor may be defective or the throttle position sensor. They may be bad or the wiring harness may be damaged and the signal isnt getting to the computer or trans. 94 was the 1st year for the electronic 4l60e, it needs the computer and specific sensors that take place of normally hydraulic controls. Does your speedo work?

2 of 2 people found this helpful.
45

yes the speedo works and the engine light goes on and off from time to time and now when i use the scanner on it, it says operator error. but the engine seems to run fine

1 of 1 people found this helpful.

Your Answer

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,500
  • #2
    John Saffrahn
    Reputation
    3,780
  • #3
    Glenn Clingenpeel
    Reputation
    3,500
View All

Related Models For Sale

Used Ford F-150
3,309 Great Deals out of 227,158 listings starting at $1,250
Used Chevrolet Tahoe
901 Great Deals out of 39,721 listings starting at $2,300
Used Dodge Ram 1500
388 Great Deals out of 10,998 listings starting at $1,699
Used Toyota Tacoma
670 Great Deals out of 41,685 listings starting at $2,500
Used GMC Yukon
567 Great Deals out of 18,819 listings starting at $2,000
Used Chevrolet Camaro
510 Great Deals out of 31,325 listings starting at $2,495

Used Cars For Sale

2018 GMC Sierra 1500 For Sale
8 Great Deals out of 29,166 listings starting at $23,886
2017 GMC Sierra 1500 For Sale
98 Great Deals out of 6,655 listings starting at $19,999
2016 GMC Sierra 1500 For Sale
144 Great Deals out of 3,896 listings starting at $15,500
2015 GMC Sierra 1500 For Sale
209 Great Deals out of 5,841 listings starting at $15,900
2014 GMC Sierra 1500 For Sale
228 Great Deals out of 4,814 listings starting at $8,495

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.