I have no codes but idles rough and stalls out 2003

10

Asked by Feb 07, 2014 at 10:31 PM about the 2003 GMC Sierra 1500 SLE Extended Cab SB

Question type: Maintenance & Repair

This started out mild and gets worse over time

5 Answers

116,595

Stalls mainly when coming to a stop? I would suspect a dirty/faulty idle air control valve.

1 of 1 people found this helpful.
10

Where is it at, I have that fly by wire excelerTor crap

116,595

Is yours the 4.6L? I believe on yours it's on the right front of the throttle body if you looking at your engine. It has two small screws holding it in place.

1 of 1 people found this helpful.
10

It's a 5.3 and you are describing the regular cable excelerator mine is the morthadike electric servo operated excelerTor. I'm wondering if the iac is part of this unit. Only one wire harness feeds this throttle body unit.

1 of 1 people found this helpful.
116,595

Yours on the left hand side with a wire harness with about six wires in it? Looks kind of like two round items built together in a square box? If so it's in there. I not sure if that is serviceable without changing the whole throttle plate assembly. If I remember correctly that's all riveted together. Sorry I could not be of more help.

Your Answer

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 64,898 nationwide Sierra 1500 listings starting at $999.

ZIP:

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,460
  • #2
    John Saffrahn
    Reputation
    3,780
  • #3
    Glenn Clingenpeel
    Reputation
    3,470
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,745 Great Deals out of 175,327 listings starting at $955
Used Ford F-150
3,299 Great Deals out of 224,480 listings starting at $1,200
Used GMC Sierra 2500HD
109 Great Deals out of 14,293 listings starting at $2,799
Used Toyota Tundra
704 Great Deals out of 34,375 listings starting at $1,500
Used Chevrolet Silverado 2500HD
395 Great Deals out of 30,738 listings starting at $1,995
Used Dodge Ram 1500
412 Great Deals out of 11,096 listings starting at $1,500
Used Toyota Tacoma
723 Great Deals out of 45,870 listings starting at $2,500
Used GMC Yukon
616 Great Deals out of 20,554 listings starting at $2,500
Used Chevrolet Tahoe
829 Great Deals out of 42,144 listings starting at $1,987
Used Ford F-250 Super Duty
449 Great Deals out of 49,398 listings starting at $1,899
Used Cadillac Escalade
292 Great Deals out of 11,844 listings starting at $1,200
Used Chevrolet Colorado
345 Great Deals out of 38,619 listings starting at $1,595
Used Chevrolet Camaro
444 Great Deals out of 31,892 listings starting at $1,450
Used GMC Canyon
149 Great Deals out of 13,909 listings starting at $1,500

Used Cars For Sale

2018 GMC Sierra 1500 For Sale
3 Great Deals out of 26,504 listings starting at $23,419
2017 GMC Sierra 1500 For Sale
86 Great Deals out of 10,675 listings starting at $20,369
2016 GMC Sierra 1500 For Sale
173 Great Deals out of 4,105 listings starting at $16,404
2015 GMC Sierra 1500 For Sale
192 Great Deals out of 5,659 listings starting at $14,995
2014 GMC Sierra 1500 For Sale
221 Great Deals out of 5,002 listings starting at $9,900

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.