2004 dodge 2500 5,9 cummins runs good one minute then the next it shuts off when i let off the gas pedal then hard to start
Asked by GuruB5KV9 Dec 11, 2018 at 11:26 PM about the 2004 Dodge RAM 2500 SLT Quad Cab LB 4WD
Question type: Maintenance & Repair
2004 dodge 2500 cummins runs good one minute then when i let off the gas
pedal it dies then hard to start may do this 2 to 10 times then runs good after
that also when it shuts off it has no power
4 Answers
wont go over 30 t0 34 mph yesterday shut off 5 or 8 times today ran good
I got 2004 ford 5.9 cummin starts run one mile stops you turn switch on three time it star back and stop again any one Tell me what wrong.. don
Guru9T7RWN answered 3 years ago
On the 03-05 5.9 liter Cummins, they had the low pressure fuel pump by the firewall. It would get too hot and melt the contacts so to solve this they put an in tank pump. There were two different types, one powered by the harness and one powered by a wire to the battery. Some people will change their battery and forget to hook that wire up so the low pressure pump isn’t lifting fuel. The truck will still run intermittently. This is also the case if you fuel pump dies. Get it fixed or your high pressure pump will burn out and its way more expensive to fix. You can test your low pressure pump by opening the fuel cap and putting your ear to the filler neck. Have someone bump the starter with the key without starting the engine, if you hear the whining of the pump for a few seconds it’s ok, if you hear nothing it’s a bad pump.
