idle rough

csz4296
95

Asked by Nov 15, 2012 at 07:40 PM about the 1998 GMC Sierra 2500 2 Dr K2500 SLE 4WD Extended Cab LB HD

Question type: Maintenance & Repair

my truck is idling really rough it dosent seem bad when im driving but when i come to a stop it shakes really bad , or when i first start it  , what can it be ??

3 Answers

John Saffrahn
30,095

Is the check engine light on after you start it? Vacuum leak, worn spark plug(s), bad idle air control and many other possibilities. Start by checking the manifold vacuum.

1 out of 1 people think this is helpful.
csz4296
95

yes check engine light is on it just came on the outher day

John Saffrahn
30,095

Go to a parts store and get the codes pulled.

Your Answer

Add photo

Related Questions

Sierra 2500

Looking for a Used Sierra 2500 in your area?

CarGurus has 218 nationwide Sierra 2500 listings starting at $4,995.

ZIP:

Search GMC Sierra 2500 Questions

GMC Sierra 2500 Experts

#1 Rowefast
Rowefast
Reputation 150
#2 FordNut
FordNut
Reputation 100
#3 tennisshoes
tennisshoes
Reputation 70
View All

Related Models For Sale

Used Chevrolet Silverado 2500"
9 Great Deals out of 289 listings starting at $3,290
Used GMC Sierra 1500"
815 Great Deals out of 52,280 listings starting at $2,400
Used Chevrolet Silverado 1500"
2,099 Great Deals out of 133,039 listings starting at $1,695
Used Dodge Ram 2500"
149 Great Deals out of 5,571 listings starting at $2,289
Used Ford F-250"
593 listings starting at $5,988
Used Ford F-150"
2,824 Great Deals out of 200,881 listings starting at $1,500
Used Ford F-250 Super Duty"
407 Great Deals out of 41,625 listings starting at $1,800
Used GMC Sierra 3500"
11 Great Deals out of 292 listings starting at $5,995
Used Chevrolet C/K 2500"
297 listings starting at $1,995

Used Cars For Sale