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TIM MOHR
TIM MOHR, ASE MASTER TECH
Category: Chevy
Satisfied Customers: 15417
Experience:  30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
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Gas fumes at the back of my 2008 suburban LT

Customer Question

Gas fumes at the back of my 2008 suburban LT
Submitted: 9 months ago.
Category: Chevy
Expert:  TIM MOHR replied 9 months ago.

Hi, my name is ***** ***** smells at the rear can be either a bad gasket on the fuel pump assembly, or a bad charcoal emissions canister, which is located right next to the gas tank, have you inspected the canister yet?

Customer: replied 9 months ago.
the canister has been
replaced
Customer: replied 9 months ago.
the smell comes from the back to the suburban
Expert:  TIM MOHR replied 9 months ago.

then it can only be a bad gasket at the fuel pump module,was the smell there before replacing the canister?

Customer: replied 9 months ago.
no
Expert:  TIM MOHR replied 9 months ago.

did it start smelling as soon as you replaced it?

Customer: replied 9 months ago.
can it be a bad line connection
Customer: replied 9 months ago.
or hose
Expert:  TIM MOHR replied 9 months ago.

it can but usually with a bad line, you would see fuel dripping, since it is high pressure, have you dropped the tank and inspected for any fuel at the lines?

Customer: replied 9 months ago.
no it started a few months later
Customer: replied 9 months ago.
I will look at the area after work
Customer: replied 9 months ago.
what am i looking for
Customer: replied 9 months ago.
do you have a photo
Expert:  TIM MOHR replied 9 months ago.

give me a second to pull up some diagrams,Tim

Expert:  TIM MOHR replied 9 months ago.

below is a diagram of the top of the tank, the fuel lines attach to the top of the fuel pump module, as seen in the picture, make sure its dry around the line connectors, if it is, then remove the locking ring and insoect the fuel pump assy gasket,Tim

Customer: replied 9 months ago.
what is the standard repair amount to replace the gasket?
Customer: replied 9 months ago.
what do i ask for as a part
Expert:  TIM MOHR replied 9 months ago.

it a 2 hour job by the book, the gasket is called the gasket for the fuel pump assembly, its a round rubber gasket,Tim

Customer: replied 9 months ago.
can me as a novice replace it?
Expert:  TIM MOHR replied 9 months ago.

sure, once the tank is out, just rotate the locking ring counterclockwise, and the assy comes straight out,Tim

Expert:  TIM MOHR replied 9 months ago.

Please dont forget to rate me, so I can get credit for helping, after rating me, you can always come back to this question and ask follow ups at no charge,Thanks,Tim

Expert:  TIM MOHR replied 9 months ago.

Is there a reason you wont rate me?

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