Last post on Oct 13, 2013 at 7:47 AM
You are in the Chevrolet Silverado & GMC Sierra
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Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Truck
Oct 06, 2010 (11:28 am)
I was not getting fuel. Pump was not running. I lifted the bed and pulled the pump. The pump wire had disconnected. The clip was soft. I think that over time the gas breaks down the plastic. I put a zip tie around the clip to assure it wont come off again.
#367 of 421 99 GMC Sierra 2500 6.0 L
Feb 18, 2011 (10:52 am)
My truck was running just fine no warning lights or messages pulling into the drive way and it stalled out. If I wait about 10 minutes it will start again and about 30 seconds later it will die out again. I let it sit over night and it ran for about two minutes and died again. I am somewhat mechanicly inclined but this just doesent make sense to me. Does anyone have an idea?
#368 of 421 Re: 99 GMC Sierra 2500 6.0 L [ctreynolds6]
Feb 18, 2011 (11:32 am)
There are a bunch of sensors that monitor and adjust fuel, air, etc. I would start by checking both the throttle position sensor and the idle air controller. A failure of either one could cause the condition you describe.
Both are inexpensive and relatively easy to replace.
#369 of 421 Re: driveability [bruce48532]
Feb 21, 2011 (9:41 pm)
I have the changed the fuel filter periodically and recently. This problem is not affected.
#370 of 421 Engine swap
Feb 23, 2011 (6:07 pm)
I am building a 72 nova in which I am planning on installing a 5.7 litre vortec out of a 97 silverado. I have the entire truck, so I plan on using the 460le transmission and the computer. Any suggestions on making this as painless as possible?
#371 of 421 1988 GMC Sierra w/305
Mar 19, 2011 (9:49 am)
While driving, the truck stalled. I managed to get it started, but would only remain started as long as I gave it gas - full throttle. Stalled again, and this time it would start, but could not keep it started no matter how much I revved the motor. The injectors have been replaced, the filter was replaced and now the carb has been replaced. There is fuel going to the carb, but the injectors are not spraying. One may dribble a bit - we're at a lost.
#372 of 421 2007 GMC Sierra Fuel Problem?
Apr 19, 2011 (6:18 am)
I am in desperate need of help. Driving down the road and the truck died like I turned the key off. It wouldn't start had it towed home. The next day it started but died after warming up to temperature then wouldn't start til next day. We replaced the fuel pump. It started but died after a bit. No codes when put on machine. Very strange, anyone with any ideas?
#373 of 421 2011 Silverado
Apr 19, 2011 (9:23 am)
I am on my 3rd Silverado in the past 10 years and have never had this problem. Truck is under 300 miles, since the first day it hesitates between 20 and 45 mph. It's at the dealer and their answer is it is shifting gears, that's just not true. Anyone have any ideas ?
#374 of 421 Re: 2007 GMC Sierra Fuel Problem? [debc1998]
Apr 19, 2011 (10:29 am)
did you replace the fuel filter?
#375 of 421 Re: 2007 GMC Sierra Fuel Problem? [debc1998]
Apr 19, 2011 (11:32 am)
My best recommendation is to take the vehicle to your local GM dealership to be diagnosed. Please keep me posted.
Caron, GM Customer Service