Jump to content

Electronic Throttle Control

rws262

Recommended Posts

rws262 Enthusiast

rws262

Posted
Posted

The throttle control on my 2010 Sierra consists of a plug that goes into the accel. pedal assembly and up into the main harness. So far two wires have broken off right at the plug and looks like others are on their way. When they come apart, the truck goes into limp mode because it can't detect the position of the throttle pedal. Has anyone else seen this? I stripped the ends and stuck them back in and fixed the problem temporarily but every once in a while it will go into limp mode again. I pull over, turn it off and "jiggle" the wires to get it to fix till it happens again. Is this a known problem and does anyone know approx. how much it would be to fix? Im past my 36,000 mile warranty and not impressed with the cheapness of the Delphi plug. Add this on top of the rusty wheels, bumper, and oil consumption and im about ready to trade for something else.

MikeNH Senior Enthusiast

MikeNH

Posted
Posted

Never seen that on these trucks but I did see it once when I was at the dealer still (not GM). Brand new car off the hauler was in limp mode and we got it inside and it seemed the harness wasn't installed properly and it ripped the wires out of the plug. Nothing like a new main harness on a brand new car. Though, they did use Delphi engine management just like these trucks...

rws262 Enthusiast

rws262

Posted
  • Author
Posted
Never seen that on these trucks but I did see it once when I was at the dealer still (not GM). Brand new car off the hauler was in limp mode and we got it inside and it seemed the harness wasn't installed properly and it ripped the wires out of the plug. Nothing like a new main harness on a brand new car. Though, they did use Delphi engine management just like these trucks...

 

 

Would they have to replace the entire harness?

MikeNH Senior Enthusiast

MikeNH

Posted
Posted
Never seen that on these trucks but I did see it once when I was at the dealer still (not GM). Brand new car off the hauler was in limp mode and we got it inside and it seemed the harness wasn't installed properly and it ripped the wires out of the plug. Nothing like a new main harness on a brand new car. Though, they did use Delphi engine management just like these trucks...

 

 

Would they have to replace the entire harness?

 

Depends on the vehicle. The harness in the truck may be more modular. Normally it'd just be a new plug and pigtail spliced in otherwise but in the case I mentioned before it was an all new model and no repair parts for the harness existed yet.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • CNH-320
      Electrical Problem - solved

      By CNH-320 · Posted

      Hey everyone, I recently had an issue with my 07 2500HD GMT900. My DRL’s stay on at all times. Right front turn and right mirror turn signal indicator stay on solid at all times. By “at all times” I mean the only way to make them go off is disconnecting the battery. I tore the headlight assemblies out, tried disconnecting the harnesses to eliminate bad wiring at the harness, I unplugged the headlight switch, no change and the mirror turn signal still stayed on. My first thoughts were : Bad bulb and/or socket somewhere, under hood fuse panel bad, bcm bad, tail light or trailer wiring problem, or some random short to power in the harness.  Possibly a bad ground but unlikely. I had a big clue in the fuse panel, it had a burnt smell. I started pulling every fuse that had to do with DRL or right turn/park lamp. Nothing made the right directional turn off but pulling the DRL2 fuse made the DRL’s go out.  After studying wiring diagrams, I found that both problems had that fuse panel in common, the bcm also controls both problems but knowing the fuse panel had a burnt smell I removed and disassembled the fuse panel and found a little corrosion on the printed circuit board.  I ordered a new fuse panel from Amazon for like $260. When it arrived I installed it, and put everything back together, the problem was fixed. I figured the fuse panel needed to be replaced anyway so that was a logical place to start. Hopefully this story helps someone in the future. Regretfully I didn’t scan for codes before I did everything.
    • 2022LtTbZ71
      Service 4wd, ESC light, traction control light on, Service charging system (vehicle may stall)

      By 2022LtTbZ71 · Posted

      That stinks. I’m sitting on the side of the road right now with the same issue. Never had an issue before taking it in for the ground strap recall. Now I’m outside of warranty and they’ll probably want $200 just to diagnose what they already “fixed”. 
    • jagabom (Esquire)
      Passenger seat

      By jagabom (Esquire) · Posted

      I wonder kind of nuts and bolts they will come up with next? Jim
    • OnTheReel
      The Peckish Synapse

      By OnTheReel · Posted

      “It should be recognized, however, that there becomes a point where fuel economy oils do not make much economic sense for the end consumer—we talk about a fuel saving of ~€100 compared to a risk of €1000 Euros if the oil is too thin and causes increased engine wear rates. However, the benefit of these oils accrues to the car manufacturers. If their vehicles can save 1–2% fuel by using a special fuel economy lubricant, then that OEM can drastically reduce the amount of fines they need to pay.”   I liked this and the following paragraph as well but it’s really only touching the beginning of the benefits OEMs see from spec’ing these oils. After you factor in “out of warranty” service work and new car sales when these engines fail before their time, it’s a good racket for them. Just because you're paranoid doesn't mean they're not out to get you!
    • Atlas
      The Peckish Synapse

      By Atlas · Posted

      Too much voodoo and snake oil.   Time to go EV    😉

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...