tranny trouble

Asked by Jul 26, 2013 at 01:00 PM about the 1994 GMC Sierra 1500 K1500 SL 4WD Extended Cab SB

Question type: General

I got a 1994 gmc 1500 4x4 with a 350 auto.   The tranny loses overdrive and third gear after about 30 mins of driving it i will have first, second and reverse, but if i let it sit for about 15 mins it will shift through all the gears smoothly  and i can go for about anther 30 mins befor it acts up again, the fluid is clean a up to the line.    some guys say the tranny is dun and others say it could be a senser, any kind of help would be great.

3 Answers

have you checked the transmission fluid level "full" with the engine running in neutral...if so was the color cherry red yet? did it smell burnt?

435

have you had throttle position sensor ( TPS) looked at? I know on some vehicles the tranny gets a signal from the TPS.you might take it to a tranny shop and have the TPS checked out,its worth a try.......bigc52

1 out of 1 people think this is helpful.

like this~

Your Answer

Add photo

Related Questions

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 58,726 nationwide Sierra 1500 listings starting at $1,599.

ZIP:

Search GMC Sierra 1500 Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 4,610
#2 John Saffrahn
John Saffrahn
Reputation 3,230
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 2,890
View All

Related Models For Sale

Used Ford F-150
3,213 Great Deals out of 205,088 listings starting at $1,779
Used Dodge Ram 1500
528 Great Deals out of 13,261 listings starting at $1,800
Used Toyota Tacoma
710 Great Deals out of 32,122 listings starting at $2,000
Used GMC Yukon
564 Great Deals out of 16,646 listings starting at $2,500
Used Chevrolet Tahoe
852 Great Deals out of 28,369 listings starting at $1,700
Used Chevrolet Camaro
475 Great Deals out of 39,921 listings starting at $3,499
Used GMC Sierra 2500
189 listings starting at $7,500

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
14 Great Deals out of 30,718 listings starting at $23,800
2016 GMC Sierra 1500 For Sale
59 Great Deals out of 4,847 listings starting at $20,990
2015 GMC Sierra 1500 For Sale
172 Great Deals out of 4,392 listings starting at $16,489
2014 GMC Sierra 1500 For Sale
178 Great Deals out of 4,461 listings starting at $13,000
2013 GMC Sierra 1500 For Sale
113 Great Deals out of 2,536 listings starting at $9,988