2003 GMC Serria I welded a broken muffler bracket I disconnected the neg batt cable. Now after I weled on truck it idles lower than normal. Is there something that could have be damaged from welding


Asked by BlackGMC Nov 22, 2012 at 04:17 PM about the 2003 GMC Sierra 1500HD 4 Dr SLE 4WD Crew Cab SB HD

Question type: Maintenance & Repair

When put in drive or reverse from park it will come close to dying but will stay running?

2 Answers

John Saffrahn

My dads 03 idles at 480-600 when warmed up depending on the humidity and air temp. What is yours idling at?


Ya but it use to idle higher and when you put truck under load it seems like it is too low to be normal. My wife even asked whats wrong with the truck.lol I just checked fuel pressure that comes in at 55psi and I had a 1yr warnaty on mass air flow so I replaced that. While I was there I decide to get new plugs and wires seeing that i just passed 90,000 and I having a issue.

Your Answer

Add photo

Related Questions

  • rough idle, stalling, loss of power. 215 answers

    o2 sensor code 44 (lean) Replaced: coolant temp sensor, tps, map sensor, fuel filter, and o2 sensor. It will run normal on occasion but only lasts about 45 seconds or so. I don't think its the torqu...

    1995 GMC Sierra 1500 K1500 SL 4WD Extended Cab Stepside SB


    Maintenance & Repair

  • Please help is there a way to break loose jb weld off of bolts without breaking them? 4 answers

    Ok long story short i let someone work on my truck and he jb welded my intake bolts and now my intakes leaking more than before....despratly in need of help.

    1995 GMC Sierra 1500 C1500 SL Standard Cab LB


    Maintenance & Repair

  • what other truck seat will fit a 1997 GMC Sierra 2 answers

    Bracket on the bottom of seat is broke and not fixable. Need new seats to replace.

    1997 GMC Sierra 1500 C1500 SLT Extended Cab LB


    Maintenance & Repair

  • 99 GMC Sierra 1500

    1999 GMC 1500 with 5.3. I did some body work disconnected battery and welded cab corner n and after words put bed back on I had to pull truck front a little. Then dummy me forgot to disconnect battery...

    1999 GMC Sierra 1500 SLT Extended Cab SB


    Maintenance & Repair

  • what is a good muffler for 92 GMC SONOMA 2.5l 7 answers

    i just brought a 92 gmc sonoma and i want my 4 cyl. to sound like a import

    1992 GMC Sonoma


    Car Customization

Search GMC Sierra 1500HD Questions

GMC Sierra 1500HD Experts

#1 reverend1735
Reputation 40
#2 sg73
Reputation 30
#2 pauljboudreau
Reputation 30
View All

Related Models For Sale

Used GMC Sierra 1500"
913 Great Deals out of 62,747 listings starting at $1,000
Used Chevrolet Silverado 1500"
2,026 Great Deals out of 135,802 listings starting at $1,982
Used GMC Sierra 2500HD"
155 Great Deals out of 13,801 listings starting at $4,000
Used Chevrolet Silverado 1500HD"
19 Great Deals out of 294 listings starting at $3,995
Used Ford F-150"
2,791 Great Deals out of 171,663 listings starting at $1,450
Used Toyota Tundra"
466 Great Deals out of 19,242 listings starting at $2,001
Used Dodge Ram 1500"
609 Great Deals out of 12,904 listings starting at $1,991
Used Chevrolet Silverado 2500HD"
331 Great Deals out of 28,919 listings starting at $175
Used GMC Sierra 2500"
5 Great Deals out of 156 listings starting at $3,499
Used Ford F-250 Super Duty"
418 Great Deals out of 40,901 listings starting at $2,999
Used Chevrolet Tahoe"
768 Great Deals out of 31,635 listings starting at $175
Used Dodge Ram 2500"
154 Great Deals out of 5,166 listings starting at $1,490
Used Chevrolet Silverado 2500"
3 Great Deals out of 271 listings starting at $3,499
Used Toyota Tacoma"
495 Great Deals out of 18,815 listings starting at $2,000