Question about 1999 Ford F250 Regular Cab

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F250 gas smell

My 1999 5.7 L F250 developed a gas smell. This smell is not always there. One web site suggested the fuel EVAP system. Truck has 128,000 miles and is well kept.

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Priority Action Part Type Cause 1 Inspect Fuel Line Assembly Loose or Damaged Fuel Line or Connector. 2 Inspect Fuel Filter Leaking Fuel Filter. 3 Inspect Fuel Tank PUNCTURED or Damaged Fuel Tank. 4 Inspect Canister Purge Valve Faulty Canister Purge Valve is Leaking. 5 Inspect Carburetor Dirty and Improperly FunctioningCarburetor. 6 Inspect Fuel Injector Dirty or Worn Fuel Injectors. Inspect Fuel Filter Leaking Fuel Filter. 2 Inspect Fuel Line Assembly Loose or Damaged Fuel Line or Connector. 3 Inspect Fuel Tank Leaking Fuel Tank.this is more than likely the problem

Posted on Sep 04, 2009

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There might by a pin hole sized leak somewhere, but to know for sure you can pick up ultra violet dye and a light at most parts stores.

Posted on Sep 04, 2009


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1 Answer

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indications are that the EVAP system is not venting the fuel tank and a vacuum is developing and stopping fuel flow to the pump
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run the fault codes and look for a EVAP problem purge/vent valve /solenoid

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Check for vacuum leaks at the following locations:
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