My 98 Dodge Ram 2500with 5.9 gas engine will run for about a minute than quit. My fuel pump is working. When it stops I check the rail pressure and there is none, however, when i take the line off the tank, there is all kinds of -pressure. Any ideas?

Asked by May 22, 2017 at 03:49 PM about the 1998 Dodge Ram 2500 ST 4WD Standard Cab LB

Question type: Maintenance & Repair

My 98 Dodge Ram 2500with 5.9 gas engine will run for about a minute than
quit.  My fuel pump is working.   When it stops I check the rail pressure and
there is none, however, when i take the line off the tank, there is all kinds of -
pressure.  Any ideas?  I've checked all my fuses, relays, and grounds.

1 Answer

77,905

If there is a fuel filter between the fuel rail and the fuel pump, change it out. Take the vacuum line off of the fuel regulator to see if there is any gas in the line. If there is gas, then the fuel regulator is bad. Otherwise it may be the fuel pump.

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