# \#sierra2500 **URL:** https://community.cartalk.com/tag/sierra2500/11170.md [Latest](https://community.cartalk.com/latest.md) · [Categories](https://community.cartalk.com/categories.md) · [Tags](https://community.cartalk.com/tags.md) --- ## [2008 GMC Sierra 2500HD - limp mode mystery](https://community.cartalk.com/t/2008-gmc-sierra-2500hd-limp-mode-mystery/185079)
**Author:** [@Martyb02](https://community.cartalk.com/u/Martyb02)\ **Replies:** 7\ **Last updated:** [July 12, 2022, 5:41am UTC](https://community.cartalk.com/t/2008-gmc-sierra-2500hd-limp-mode-mystery/185079 "2022-07-12T05:41:18Z")
I have a 2008 GMC Sierra diesel and towing a 25 ft Airstream in a headwind. At 65 mph we’d go into limp mode but at 80 mph we were fine. We had one historical code for fuel pressure, but went into limp mode 4 times. Wha… --- ## [02 sensors](https://community.cartalk.com/t/02-sensors/171374)
**Author:** [@natewenger9\_171681](https://community.cartalk.com/u/natewenger9_171681)\ **Replies:** 7\ **Last updated:** [October 20, 2020, 11:43pm UTC](https://community.cartalk.com/t/02-sensors/171374 "2020-10-20T23:43:18Z")
I had three 02 sensor codes up for the bank2 sensor2 on my Sierra. I replaced the sensor and immediately had all three come back along with the same three counterpart codes for bank1 sensor1. Does anyone have any idea wh… --- ## [2011 GMC Sierra 2500HD crept from a stop](https://community.cartalk.com/t/2011-gmc-sierra-2500hd-crept-from-a-stop/148310)
**Author:** [@BillMELANSON](https://community.cartalk.com/u/BillMELANSON)\ **Replies:** 1\ **Last updated:** [September 7, 2019, 8:06pm UTC](https://community.cartalk.com/t/2011-gmc-sierra-2500hd-crept-from-a-stop/148310 "2019-09-07T20:06:30Z")
I have a 2100 gmc seria 2500hd with Duramax desiel and Allison 6 speed transmission. Last night it would only creep away from a stop. No lights or warning messages. Seems to work fine now. --- ## [2006 GMC Sierra 2500HD won't start right away](https://community.cartalk.com/t/2006-gmc-sierra-2500hd-wont-start-right-away/134384)
**Author:** [@Jim28](https://community.cartalk.com/u/Jim28)\ **Replies:** 1\ **Last updated:** [February 11, 2019, 3:39pm UTC](https://community.cartalk.com/t/2006-gmc-sierra-2500hd-wont-start-right-away/134384 "2019-02-11T15:39:56Z")
When I try to start my truck, often the engine does not crank and the truck makes a noise which sounds exactly like static noise on an untuned radio. Ultimately the truck will start, but I have to make anywhere from 2 t… --- ## [Water pump bearings banging?](https://community.cartalk.com/t/water-pump-bearings-banging/95810)
**Author:** [@CharlieMadison](https://community.cartalk.com/u/CharlieMadison)\ **Replies:** 8\ **Last updated:** [September 25, 2016, 12:45pm UTC](https://community.cartalk.com/t/water-pump-bearings-banging/95810 "2016-09-25T12:45:52Z")
2000 GMC Sierra 2500 6.0L gas engine 150K miles. After returning home from a 150 mile drive, I notice a very heavy sound of marbles banging around near the front of the engine at idle. The noise is a much like heavy de… --- ## [Gmc truck dies when i stop](https://community.cartalk.com/t/gmc-truck-dies-when-i-stop/71389)
**Author:** [@wirenut](https://community.cartalk.com/u/wirenut)\ **Replies:** 7\ **Last updated:** [December 24, 2012, 1:18pm UTC](https://community.cartalk.com/t/gmc-truck-dies-when-i-stop/71389 "2012-12-24T13:18:34Z")
i have a 1998 gmc sierra 2500 truck when i start it it runs just fine but after i have driven it awhile when i go to stop as soon as i come to a stop the engine revs up and down and it dies it will not do it if i am in n… --- ## [What the h\*\*\*\*\* is a DNA kit](https://community.cartalk.com/t/what-the-h-is-a-dna-kit/69256)
**Author:** [@Thomi\_Q](https://community.cartalk.com/u/Thomi_Q)\ **Replies:** 13\ **Last updated:** [April 24, 2012, 6:19am UTC](https://community.cartalk.com/t/what-the-h-is-a-dna-kit/69256 "2012-04-24T06:19:02Z")
I bought a 2007 GMC 2500 last summer and there was a little box labeled DNA kit in the glove box. Actually showed it to my mechanics who scratched their heads and were clueless. It contains liquid of some kind. I (and… --- ## [1994 Sierra Diesel and Cold Weather](https://community.cartalk.com/t/1994-sierra-diesel-and-cold-weather/69129)
**Author:** [@agloe](https://community.cartalk.com/u/agloe)\ **Replies:** 0\ **Last updated:** [October 31, 2011, 11:46pm UTC](https://community.cartalk.com/t/1994-sierra-diesel-and-cold-weather/69129 "2011-10-31T23:46:55Z")
For the past 2-3 winters, my truck will have intermittent starting problems. Works fine in the warm weather months. On mornings that are cold, 32 or below, sometimes after the glow plug light goes out and I turn the key …