99 gmc sierra z71

Asked by Jan 08, 2017 at 06:41 PM about the 1999 GMC Sierra 1500

Question type: Maintenance & Repair

My 99 gmc has a 5.3 it wont rev over 3000 rpms. It
did idle ruff but idles fine now after i have replaced
intake gaskets, fuel pressure regulator, tpi sensor,
egr tube, complete tune up plus changed coil
packs. It has a check engine light on and the cpu
wont scan or reset and the fuses are good cigar
lighters all work! Grounds are all good, plus i just
cleaned the maf sensor and idle sensor

3 Answers

73,865

Are there any codes?

73,865

I am suspecting the Throttle Positioning Sensor and wire harness plugin.

73,865

You would have a p1515 to 1519 code come up, I suspect it would be p1516

Your Answer

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 10,772 nationwide Sierra 1500 listings starting at $2,995.

Postal Code:

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,360
  • #2
    John Saffrahn
    Reputation
    3,700
  • #3
    Glenn Clingenpeel
    Reputation
    3,380
View All

Related Models For Sale

Used Chevrolet Silverado 1500
182 Great Deals out of 11,069 listings starting at $1,995
Used Ford F-150
494 Great Deals out of 10,137 listings starting at $3,450
Used Toyota Tundra
36 Great Deals out of 945 listings starting at $2,500
Used Dodge Ram 1500
51 Great Deals out of 531 listings starting at $1,300
Used Toyota Tacoma
38 Great Deals out of 874 listings starting at $5,990
Used GMC Yukon
17 Great Deals out of 976 listings starting at $3,000
Used Chevrolet Tahoe
6 Great Deals out of 720 listings starting at $4,995
Used Ford F-250 Super Duty
22 Great Deals out of 914 listings starting at $6,800
Used Chevrolet Camaro
3 Great Deals out of 810 listings starting at $13,404

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
23 Great Deals out of 4,835 listings starting at $28,495
2016 GMC Sierra 1500 For Sale
32 Great Deals out of 279 listings starting at $26,977
2015 GMC Sierra 1500 For Sale
61 Great Deals out of 575 listings starting at $18,994
2014 GMC Sierra 1500 For Sale
47 Great Deals out of 477 listings starting at $17,995
2013 GMC Sierra 1500 For Sale
24 Great Deals out of 237 listings starting at $10,560

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.