2009 1500 suddenly rough and lost power

[jonnevin]

Yesterday truck running fine, today check engine light on in morning and running fine and then all of sudden "stabilitrack off" light came on and began running very rough and had basically no power. had to limp home.

any ideas?
was there some sort of bulletin that came out for this model?
2009 SLE 1500 2WD V8

 

[GMC Customer Service]

Do you have any updates since your last post, jonnevin? We're available to help with warranty questions, or with the process of getting this looked into by a dealership.

Sarah (Assisting Stacy), GMC Customer Service

 

[RollinHills]

07 Sierra NEW BODY error P0300 and C0561

Hi, I have an 07' GMC Sierra Vortecmax 4WD 6.0L. I was pulling out of my driveway the other day and my truck began to run rough. I had my engine light on and there was a tick. The tick turned out to be snapped bolts on my exhaust manifold so i replaced the bolts and gaskets and put new plugs and wires on and check the coils,however, before I did anything with my truck the Stabillitrak service light came on and the engine light began blinking while driving, I figured the truck had lost compression from the manifold leak. So after the fix, the truck still runs rough and the engine light blinks and there is loss of power. I also gave it gas in neutral and it sounds like its gunna stall out but it comes back after a couple of seconds. Does anyone else have this problem?????? Please help.

 

[GMC Customer Service]

Hi, I have an 07' GMC Sierra Vortecmax 4WD 6.0L. I was pulling out of my driveway the other day and my truck began to run rough. I had my engine light on and there was a tick. The tick turned out to be snapped bolts on my exhaust manifold so i replaced the bolts and gaskets and put new plugs and wires on and check the coils,however, before I did anything with my truck the Stabillitrak service light came on and the engine light began blinking while driving, I figured the truck had lost compression from the manifold leak. So after the fix, the truck still runs rough and the engine light blinks and there is loss of power. I also gave it gas in neutral and it sounds like its gunna stall out but it comes back after a couple of seconds. Does anyone else have this problem?????? Please help.

RollinHills,
I would like to apologize for the issues that you are having with your Sierra. I would recommend that you have your dealer look into this for you. They may be in the best position to assist you in getting this diagnosed. Please keep me posted and if you have any questions please feel free to contact me anytime.
Thank you,
Stacy Chevrolet Customer Service

 

[2010Sierraca]

I have 2010 with 5.3, had samething happen last Dec multiple times and noticed it was during high humidity, fog damp days. 4 trips to the Dealership after crank position sensor and ecm replaced without resolve. Basically when this happens, it spits out numerous codes and the dealership was left guessing which code is the cause for the condition. The last time my truck was in the dealership for little over a week, and they appeared to have fixed it by replacing the 5 volt reference wires that run to crank position sensor, ecm and throttle position sensor ( I think ). Has run fine since, but my confidence in the product was at a point where I was ready to sell it.
On the road now without issues for about 1 month and waiting for damp days to return ( live in Ontario ) and it has been below freezing here mostly since last visit to dealership.

 

[Threeblacklabman]

09 1500 runs rough/loss of power

Hello,
Wanted to share this with you.
I have a 09 SLT 4WD CC 5.3 and just recieved a notice from GMC regarding a condition where the throttle position sensor may cause the engine to run rough/MIL and reduced power.

its happened 3-4 times on mine and need to get it in for this and trans flare-shift issues, along with lifter noise on start up.

Hope you find the resolve!