Rough idle &I reduced engine power & stabiltrak off & traction control off

Asked by Mar 04, 2017 at 02:14 AM about the 2008 GMC Sierra 1500 SLE1 Ext. Cab

Question type: Maintenance & Repair

After replacing the 6point connector and
about 5 inches of wire to the throttle
position sensor because the truck would
go into limp mode all the time and not to
mention I've also replaced the accelerator
pedal assembly and sensor. And when we
did all of this the battery cables were off
and left off all night and the next morning
when  started up the truck jerked into
reverse really hard and idled really bad and
now I seem to have a problem with my
whole left side not firing at all and I'm
scared we may have cost myself a lot more
then I bargained for because I bought used
with 150,000+ miles and it's nearly 9 years
old 2(008) it is now 2017 but anyway if
anyone can please enlighten me on what I
have go to do to have my truck running
again

1 Answer

120,815

Anything after 05 if the battery is disconnected without using the preset saver tool the computers loose the factory presets, and the only place to get them back is the dealership, it runs a hundred bucks where I'm at. Then after the system is brought back to operational mode then the entire system will have to be checked for any malfunction sensors and or wiring problems, as you stated that the whole left bank is inoperative, hopefully it isn't a totally corrupted ECM.

Your Answer:

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,640
  • #2
    John Saffrahn
    Reputation
    4,020
  • #3
    Glenn Clingenpeel
    Reputation
    3,780
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,812 Great Deals out of 155,289 listings starting at $1,490
Used Ford F-150
2,235 Great Deals out of 188,247 listings starting at $1,200
Used GMC Sierra 2500HD
135 Great Deals out of 17,574 listings starting at $2,999
Used Toyota Tundra
456 Great Deals out of 36,577 listings starting at $2,200
Used Chevrolet Silverado 2500HD
326 Great Deals out of 28,543 listings starting at $2,500
Used Dodge Ram 1500
318 Great Deals out of 8,827 listings starting at $2,495
Used Chevrolet Tahoe
662 Great Deals out of 37,402 listings starting at $1,950
Used Ford F-250 Super Duty
444 Great Deals out of 36,261 listings starting at $1,999
Used Toyota Tacoma
457 Great Deals out of 49,501 listings starting at $2,900
Used GMC Yukon
320 Great Deals out of 23,607 listings starting at $2,000
Used Chevrolet Colorado
273 Great Deals out of 37,248 listings starting at $1,777
Used Jeep Grand Cherokee
1,141 Great Deals out of 79,115 listings starting at $1,500

Used Cars For Sale

2019 GMC Sierra 1500 For Sale
210 listings starting at $33,000
2018 GMC Sierra 1500 For Sale
34 Great Deals out of 30,667 listings starting at $21,760
2017 GMC Sierra 1500 For Sale
95 Great Deals out of 5,294 listings starting at $17,635
2016 GMC Sierra 1500 For Sale
55 Great Deals out of 2,868 listings starting at $15,990
2015 GMC Sierra 1500 For Sale
72 Great Deals out of 4,895 listings starting at $11,995

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.