2003 BMW 325 gas leak from leak detection pump air filter

2003 BMW 325
84,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MAVRIK101
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  • 1 POST
My car leaks gas after running for a while thru the ldp air filter. Replaced leak detection pump, and still have problem. It happens more frequently if more than a half tank of gas. Also misfires and sometimes dies at stop light.

There is also a lot of pressure in gas tank when leak is occuring. I turn car off, go to rear of car, and see gas running out behind passenger rear tire. Loosen gas cap and it de-pressurizes very strongly.

Anyone?
Aug 31, 2010 at 2:03 AM
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DOCHAGERTY
  • ✓ASE Certified Mechanic
  • 9,606 POSTS
  • ASE Certified Mechanic
Has the tank vent valve been replaced? It is underhood, just in front of and below the intake manifold.
Aug 31, 2010 at 8:53 AM
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