GMC Sierra Fuel System

Browse GMC Sierra Fuel System questions and answers. Choose a question that matches your symptoms.

170 discussions

Gas Smell In The Cab Of The Truck?

2014 GMC SIERRA
When I First Start Up My Vehicle And Let It Idle The Cab Starts To Smell Like Fuel Not Exhaust But Straight Fuel. When I Start Driving Down...
3 ANSWERS
3 IMAGES
Asked by GRHINEHART18

Cp4 Injection Pump Will Not Build Rail Pressure

2011 GMC SIERRA
The Low Reference Wire Going To Fpr2 Is Showing 12 Volts. Is This Correct?
1 ANSWER
7 IMAGES
Asked by Tony Fussell

Diesel Fuel Leak

2009 GMC SIERRA
At The Fuel Filler Neck, Just Beyobd The Truck Exteriot The Filler Hose Is Coupled With A 1/4" Breather Tube. It Appears The Hose Is Missing...
1 ANSWER
Asked by bposter

Fuel Pump Control Module Swap?

2008 GMC SIERRA
Can I Replace My Fpcm With One From A Junk Yard Ik Will Have To Get It Programmed But Are The Interchangeable.
1 ANSWER
6 IMAGES
Asked by Alex Boutot

Fuel Pump Not Working

2008 GMC SIERRA
Fuel Pump Will Not Run Or Prime. Replaced The Fpcm And Replaced The Fuel Pump. Fuse Are Good. And The Grounds Are Good. Can Straight Wire...
1 ANSWER
11 IMAGES
Asked by fish0505

Misfire

2007 GMC SIERRA
Hello, I Have Problem With My Truck , The Vehicle Started To Misfire From Few Weeks, It Starts With No Issues At All But When I Am Cruising...
16 ANSWERS
Asked by General.motors

Rough Starts In The Morning

2006 GMC SIERRA
So I Rebuilt My Top End 6 Months Ago Or So And Ever Since Then I’ve Had Rough Starts In The Mornings But It Has Gradually Gotten Worse Or...
5 ANSWERS
Asked by DragonScullFireLord

Fuel Pump Fuse

2006 GMC SIERRA
The Truck Keeps Blowing Fuel Pump Fuses. When I Try To Start It When It Is Not Parked At The Level, When The Truck Is Park Level It Starts...
1 ANSWER
Asked by Alexandre Corbeil

My Truck Wont Start And I Replaced The Fuel Pump And...

2006 GMC SIERRA
My 2006 Gmc Sierra Denali Didnt Start One Day After Work A Couple Of Days Before That I Had To Hit The Fuel Tank A Couple Times And Then It...
1 ANSWER
Asked by byron06denali

Try To Put Gas In Tank But It Will Not Take Gas Fast

2005 GMC SIERRA
Try To Put Gas In Tank And It Keeps Shutting Off Ten To Thirty Cents At A Time. Engine Light Is On.
1 ANSWER
7 IMAGES
Asked by Robert VanAlstine

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