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Grand Am has intermittent problem: sometimes pushes fuel back up filler neck even though guage reads empty.

Tiny
JOE MCGREGOR
  • MEMBER
  • 1999 PONTIAC GRAND AM
  • 129,000 MILES
Went to gas up the other day and car wouldn't take any fuel, went to another station and it took fuel no problem.
Friday, February 24th, 2012 AT 9:28 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
For fuel to enter the fuel tank, air needs to escape via a vent that rides along the side of the filler tube. Check to make sure nothing it plugging that.
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Friday, February 24th, 2012 AT 9:36 PM
Tiny
JOE MCGREGOR
  • MEMBER
  • 6 POSTS
Jake and Nickolas, that was the plan for first thing tomorrow. I changed the pump about a month ago and when the tank was down I did not notice anything amiss, I wonder if there is a rollover valve like in Chrysler products that could be the problem. The customer was not able to supply much info, she did her best.
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Friday, February 24th, 2012 AT 9:49 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
To the best of my knowledge, there is no rollover valve. Check to make sure the breather is clear and not plugged.
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Friday, February 24th, 2012 AT 9:52 PM

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