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Engine Specific Info and Questions => Non VW Group Diesel => Topic started by: FoXBoXRaCiNG on October 11, 2009, 08:37:11 pm

Title: 98 Cummins dorkin out
Post by: FoXBoXRaCiNG on October 11, 2009, 08:37:11 pm

A buddies truck: 200ish kms, new IP, new fuel tank, added a lift pump to a stock location, no fuel tank vacuuming, free flowing catless stock exhaust, clean air filter, fresh fuel filter, runs and idles fine...

After a couple hundred meters it starts to dork and you lose all power like it's getting the fuel cut off, the more fuel pedal the worse it gets?!?!? All that's listed above has been done try ing to resolve the issue...

Any input anyone?

Title: Re: 98 Cummins dorkin out
Post by: macka on October 12, 2009, 05:58:50 am

is the lift pump restricting flow? Some of the junkie lift pumps can't keep up with the cummins pressure needs.

Title: Re: 98 Cummins dorkin out
Post by: rabbitman on October 13, 2009, 01:31:20 pm

Definitely sounds like it's not getting enough fuel

Title: Re: 98 Cummins dorkin out
Post by: dieselweasel on October 14, 2009, 05:51:19 pm

Yes check the fuel pressure.

Title: Re: 98 Cummins dorkin out
Post by: Rabbit on Roids on October 16, 2009, 02:52:56 pm

check the fuel suction hose from the tank to see if there are any restrictions. also check all the banjo bolts for cloggs. i had a clogged banjo bolt once and my car would starve for fuel bad.

Title: Re: 98 Cummins dorkin out
Post by: hippiekiller on October 20, 2009, 07:46:11 am

If its a 24V its probably a lift pump, definitely check fuel filter though anyway.....could be gelled allready?

Title: Re: 98 Cummins dorkin out
Post by: topless96 on October 22, 2009, 03:47:02 am

My 2001 Cummins will throw a code for behavior like that. Did you read the codes and does it show a CEL.