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2006 GMC Sierra 2500 HD Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2006 GMC Sierra 2500 HD

2006 GMC Sierra 2500 HD Problems

One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.

The daytime running lights are prone to burning out. Our technicians tell us that the light sockets may show signs of heat damage but usually are OK. Always be sure to use the correct replacement bulb for the best life expectancy. The new bulb recommendation for 2001-2003 models is #4114K (trade number).

Units with 4 wheel disk brakes may develop at situation where the park brake does not hold as it should. Our technicians tell us this can be caused by worn park brake shoes located inside the drum section of the rear brake disks. The worn shoes should be replaced and properly adjusted to correct this issue.

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2006 GMC Sierra 2500 HD Questions

I changed my factory exhausted manifolds and up pipes,i put on aftermarket ppe manifolds and up pipes now my turbo doesn't work right anyone have any ideas why?

I own a gmc 2500hd crew cab slt 4x4 diesel 6.6 liter. My fan control is push button. do I need the Manuel or auto blower resistor?

If I have the system on fresh air & moving at about 30+ mph I can feel a/c, heat,defrost... If I have it in recycle mode no air,heat,def. fan is not blowing air.

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2006 GMC Sierra 2500 HD Recalls

The retainer clip for the fuel rail pulse damper may fracture and allow the damper to come loose from the fuel rail. A fuel leak in the presence of an ignition source may result in a fire. Dealers will replace the engine fuel rail pulse damper free of charge. The recall began August 31, 2006. The GM recall number is 06080.

The tire and loading information label on the driver's side door frame may be inaccurate. A misprinted label could lead to overloading of the vehicle, which could possibly lead to tire failure and a crash. Owners will be provided with corrected labels and installation instructions. At customers' request, a dealer can install the label for them. The recall began March 31, 2006. The GM recall number is 05109.

Some vehicles have a power steering hose that was not made to specification and may rupture under extreme steering conditions. If this were to happen, power steering assist would be lost and steering effort would increase. On vehicles equipped with hydro-boost brakes, braking effort would also increase. If power steering fluid were to spray on hot engine parts, an engine compartment fire could also occur. Dealers will inspect the power steering hose(s) for the two suspect date codes and replace them if needed. The recall began October 14, 2005. The GM recall number is 05086.

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2006 GMC Sierra 2500 HD Reviews

After buying a new 26' travel trailer we decided to trade in the 2002 1/2 ton Sierra and get a brand new 2006 Sierra HD 2500 SLT 4x4 with the 6.6 Duramax Diesel,6 speed Allison and went crew cab this time. What a difference that made in pulling the trailer. I can go from Phoenix to Flagstaff with the cruise control on pulling the trailer holding 65 mph (as long as I have an open lane). I had ...

I bought june 2006 from now defunct dealer lawrence marshall. I drove it over every bumpy road i could find and didn't rattle at all. In september the doors started rattleing and the seats squeaking and noise from dash.The doors the worst,it make a noisy clacking and bumping every start and stop and on bumpy roads,they were able to fix only the seats . April of 2011 the dash stated making a ste...

I really like mine. 8.1 has plenty of power and does as good on fuel as the 6.0. I had leaking oil cooler line that I had to replace outside of warranty. Other than that, its been a good truck. Only have 42k miles on it ytd.

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