Whaler
Jun 05, 2017Explorer
Lift pump issues
We plan to resume traveling soon after time away due to family comittments. Replacing tires, batteries, shocks, filters and fluids on our 01 NRV Carribean. We replaced the lift pump a few days ago. All seemed well until I went to have tires replaced. As I was parking for the tire work the motor chugged and died. Checked for wif and filter which was clean. I cycled the lift pump three times and it started. Had a one jerk of engine on trip home. Once home we checked connections and filter again. My mechanic friend tapped the pump while MH was running and it would sputter and die. Has anyone had issues with new lift pumps or similar expriences. The old one was working fine but was over 16 years old. I am putting it back on to see what happens. I always thought the lift pump only cycled fuel to the injector pump then went off. Hoping this isn't an injector pump issue. Cummins had a lot of bad vp44's and this one has already been replaced. This is on a 5.9 cummins. Might add to that alternater isn't putting out as much voltage as it should either just in case there is a connection.