My truck is sputtering, staling, and bucking

Asked by Nov 25, 2014 at 06:29 PM about the 1989 GMC Sierra 1500 K1500 Extended Cab LB 4WD

Question type: Maintenance & Repair

89 has 160,000 miles.Its allways run great but a couple days ago it started overheating.
We put a new thermostat in and temp is better. It idle's fine but stalls, sputters and
bucks. Any ideas?
Thanks

1 Answer

I also put some bars leak in the radiator after we changed the thermostat, but didn't let it run or idle for long enough...

Your Answer

Add photo

Related Questions

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 4,630
#2 John Saffrahn
John Saffrahn
Reputation 3,240
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 2,900
View All

Related Models For Sale

Used Ford F-150
3,136 Great Deals out of 208,989 listings starting at $1,200
Used Chevrolet Camaro
433 Great Deals out of 40,831 listings starting at $3,500
Used GMC Sierra 2500
193 listings starting at $4,999

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
22 Great Deals out of 32,863 listings starting at $23,800
2016 GMC Sierra 1500 For Sale
74 Great Deals out of 4,722 listings starting at $18,710
2015 GMC Sierra 1500 For Sale
127 Great Deals out of 4,267 listings starting at $15,888
2014 GMC Sierra 1500 For Sale
170 Great Deals out of 4,281 listings starting at $8,988
2013 GMC Sierra 1500 For Sale
120 Great Deals out of 2,470 listings starting at $9,500