I am having some troubles since rebuilding my engine and putting it back together. I'm not sure if the problem is caused by the lift pump, just not being primed, or the ECM. I put a new ECM in my truck do to the fact that my old one had a faulty wait to start light and thought maybe it was messing with the lift pump. I also tried priming it by bumping the starter and my pump does not run for the 20 or so seconds it's supposed to, and doesn't always run at all? It will crank but haven't got it to fire or start. Could this be from the lift pump being junk? The ECM not being flashed for my truck? Or just simply isn't primed yet? Any help is appreciated, thanks!
I am having some troubles since rebuilding my engine and putting it back together. I'm not sure if the problem is caused by the lift pump, just not being primed, or the ECM. I put a new ECM in my truck do to the fact that my old one had a faulty wait to start light and thought maybe it was messing with the lift pump. I also tried priming it by bumping the starter and my pump does not run for the 20 or so seconds it's supposed to, and doesn't always run at all? It will crank but haven't got it to fire or start. Could this be from the lift pump being junk? The ECM not being flashed for my truck? Or just simply isn't primed yet? Any help is appreciated, thanks!