Dieseljunkie
New member
Ok here's my issue going on. I installed a 6.7 fuel pump in the 6.0 last weekend. Went with half inch feed line from a sump, to the pump, then up to the top filter. I do have a regulated return it's the mkm customs sinister kit. Im using the factory return line which goes to a 3/8" line all the way back to the "old draw straw" which is now used for return. I bypassed the 6.7 return fittings all together. So I go to prime the pump and it turns out that pump was bad from the get go making a bad howling noise. So today I install a brand new one, sounds so much better but Im still not making and pressure. Im reading pressure from a port on the RR. I have the pump grounded to the frame and a relay kit from jegs powering the pump. I have the factory pump hot wire as the trigger wire for the relay. Anyone have any ideas why Im not making any pressure??? I've even tried backing of the RR to see if anything would build, but to no avail. I would appreciate any help!! Thanks
