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2008 GMC Sierra 2500HD SLE1 2WD Reg Cab 133

2008 GMC Sierra 2500HD
Trim Info:
Rear Wheel Drive, Reg Cab 8' Fleetside
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Recent Questions

Where is my EGR valve located
I have a 2003 GMC Sierra 2500HD 6.6L duramax. I am trying to find a guide on where my EGR valve is but cannot find anything. Any help would be greatly appreciated
Asked by Brandon F October 21, 2014, 1:30 pm 0 reply
when shifting into second gear
Hi I have a 2002 GMC sierra 2500hd 8.1l vortec with the Allison behind it. I'm just curious why it falls on its face when hard on the pedal shifting into second gear it looses so m...
Asked by Joe F September 23, 2014, 2:16 pm 0 reply
why my aircondition is not working
The fan speed started going out one speed at a time. Now it don't work at all
Asked by Peter B June 7, 2014, 8:14 am 1 reply
why is my aircondition not working
fan speed started going out one speed at a time. now all fan speeds not working
Asked by Peter B June 7, 2014, 8:18 am 0 reply
Whining noise
Recent, engine/transmission cold outside temperature below 40 degrees. From 26-34 mph, get whine that rises in pitch as the speed increases. It abruptly cuts out at 34 mph. Does n...
Asked by Ed P January 20, 2014, 6:08 am 1 reply
Cause for vibration
My truck was recently towed. Now it has a steady vibration regardless of the speed. The tires were rotated and the balance checked. The tire shop also checked the drive line. Th...
Asked by Jim C January 25, 2014, 7:14 am 0 reply
vibration and tranny noise
I own an 01 GMC Sierra 2500HD SLT Extended Cab with 8 foot bed and with the 8.1 Liter vortex engine also with the Allison transmission. When I accelerate from a stop or even low sp...
Asked by Shane M November 15, 2013, 11:00 am 1 reply
A massage on the screen about fuel additive ?
Bought the truck few months ago with 20k miles on it
Asked by Anthony M October 6, 2013, 7:35 pm 0 reply
fan blower not working
fan speeds 1-5. speed 5 stop working, two weeks later speed 4 stop working.now speeds 1-5 not working
Asked by Peter B July 15, 2013, 11:39 am 1 reply
truck wont start or communicate with tech 2
i have a 2004.5 gmc sierra 2500 duramax diesel lly engine (8th vin digit is 2) after turning my truck off for about 15mins it would not start up again, wont even try to crank at al...
Asked by Eric P April 25, 2013, 11:42 pm 1 reply
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