mercury moutaineer

1998 MERCURY MOUNTAINEER
159 MILES • 6 CYL • 2WD • AUTOMATIC
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KRISTIMP2003
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What is the fule pressure requirement for a 1998 mercury moutaineer 4.0 v6
Dec 1, 2010 at 3:32 AM
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JACOBANDNICKOLAS
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30 to 45 psi with the key on and the engine off.
Dec 1, 2010 at 3:35 AM
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KRISTIMP2003
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what about with it running?
Dec 1, 2010 at 3:44 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
That is the only listing mitchell lists. Based on that, I would recommend the same with the engine running. With the engine running, remove the vacuum hoses to the regulator. Pressure should increase. Also, make sure there is no fuel in the vacuum hose from the regulator. If there is, replace the regulator.
Dec 2, 2010 at 12:03 AM
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