GMC Sierra 2500 Repair and Maintenance

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

GMC Sierra 2500 Problems

Check Engine Light With Code P1870

Vehicles equipped whit a 4 speed automatic transmission may develop a harsh 1-2 shift and/or illumination of the Check Engine Light with code P1870 stored. This can be caused by wear of the bore for the TCC isolator and regulator valves in the valve body. This condition does not commonly occur until the transmission reaches normal operating temperature. If the valve body is worn, replacement will be necessary to correct this concern.

"No start" Caused By Failed Fuel Pump

The fuel pump may fail causing the engine to stall and not restart.

Fuel Level Sensor Failure

It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.

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GMC Sierra 2500 Recalls

Recall 07V521000
ON CERTAIN PICKUP TRUCKS EQUIPPED WITH AN 8.1L V8 ENGINE, THE CRANKSHAFT POSITION CAN OPERATE INTERMITTENTLY OR FAIL COMPLETELY. IF THE SENSOR OPERATES INTERMITTENTLY, THE SES LIGHT MAY ILLUMINATE AND THE VEHICLE MAY RUN ROUGH. THE ENGINE MAY STALL, AND IF SO, MAY RE-START IMMEDIATELY OR AFTER ...
Fuel May Leak from Fuel Rail

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.

Recall 06V066000
CERTAIN PICKUP TRUCKS HAVE GALVANIZED-BRAIDED-STEEL TAILGATE SUPPORT CABLES USED TO SUPPORT THE TAILGATE IN THE FULL OPEN (HORIZONTAL) POSITION. OVER TIME THESE CABLES CAN CORRODE AND FRACTURE WHEN LOADS ARE APPLIED TO THEM.

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GMC Sierra 2500 Reviews

bought my GMC 2500 in 2004 new, has 135,000 miles on it, when making turns there is a knocking noise in the steering shaft nobody has ever been able to fix it, interior on drive side had to be replaced, ac blow hot air , have to cut truck off and restart to get cool air, sometimes it works sometimes it does't, there is a noise that sound like the drive shaft is hitting something, replaced fro...
My sierra was a terrific truck until it spontaniously caught fire while the truck was off and parked in my drivway. If your blower motor stops or electrical things start becoming irratic gages...ect. Keep your truck out of your garage and get it checked. a.s.a.p.
Great truck over all, however mine's AC just stopped working out of the blue one day and even though all the fuses and relays are good the unit is still not getting any power

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