2007 GMC Sierra Denali Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2007 GMC Sierra Denali

2007 GMC Sierra Denali Problems

"No start" Caused By Failed Fuel Pump

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

Popping Noise From Muffler Heat Shield

The muffler heat shield may become loose on the muffler causing a rattle or popping noise. Our technicians tell us there is a kit available from GM to correct this problem.

ABS Light Due to Poor Electrical Ground Under the Battery Tray

A poor electrical ground under the battery tray may cause the ABS warning light to illuminate. Our technicians tell us that cleaning and properly securing this ground and also the main ABS ground on the frame rail below the drivers door may be necessary.

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2007 GMC Sierra Denali Questions

why does my transmission bang when shifting from second to third, (1 answer)

it is real loud, dealer can not seem to repair

AWD Transmission acting strange (2 answers)

So I have had this truck 1 yr now and recently the tranny feels like it is staring to hit gears harder. Especially when slowing to a red light but then accelerating as it turns green, it down shifts then feels like it gets confused and finally hits up a gear. I have 69K miles and figure the trann...

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