Lift pump issue | Cummins Diesel Forum Look for any pinched, frayed, or disconnected wires, especially those tied into the lift pump circuit A common issue is a wire getting tugged loose or chafed during the starter removal
Lift Pump Replacement | Cummins Diesel Forum think about an inline pump and filter system prefilter water separator first before pump and 2 micron after the pump the stock 7 micron does not protect your expensive injectors and engine
Vacuum pump problem | Cummins Diesel Forum The vacuum pump has gone and I have read in the 911 forum on what the repair is going to cost and what the part numbers are My comment question is, "Is this very common?" I have talked to 3 different Cummins reps and none of them remembers selling a vacuum pump to anyone
Fuel problem-not getting any past the injector pump Motor obviously wasn't getting fuel Turned key to on, no lift pump noise Had it towed home Tore out and replaced lift pump, now getting fuel to the injector pump (at least at the inlet banjo), but when trying to bleed, getting no fuel at the injectors Tried for an hour to get any fuel to come out when bleeding at the injectors, but nothing
Max Pressure to P-pump | Cummins Diesel Forum 175 pump has the same cam profile as the 160 pump, meaning it responds well to high fuel pressure You'll notice the most gains from high fuel pressure in the 2500 rpm to 4000 rpm range
My lift pump CP3 feed solution | Cummins Diesel Forum This pump must be used with an external pressure relief Failure to use a pressure relief on a stock Gen3 engine will result in a cracked fuel filter housing lid
Air in Fuel? Bad Lift pump? need help pls | Cummins Diesel Forum Air in Fuel? Bad Lift pump? need help pls Tags cummins 24v fuel delivery help i was violated Jump to Latest 339 views 9 replies 4 participants last post by bigfish95971 Aug 10, 2025 T temple Discussion starter 7 posts · Joined 2025 #1 ·Aug 10, 2025
Checking lift pump pressure? | Cummins Diesel Forum The lift pump will run when the key is turned on It does not really matter about trying to start then turning off back on Supposedly it is 450mil in 25 seconds However, as stated above, this has nothing to do with long crank no start The lift pump will not blow you away with pressure though as you might believe
No power to lift pump, intermittent. ECM or Sensor? Note: This is a 98 5, manual trans I am having intermittent power loss to my lift pump I read through multiple threads and came the conclusion that the power source is from the ECM No relays in fuse box, no aftermarket relay setup What I'm having trouble with the the wiring setup which I'm
Check your water pump!!!!!!!! | Cummins Diesel Forum The pump replacement was covered under the Cummins warranty, they got me for a new belt even though that belt looked just fine until the water pump went and caused it to jump track