Crank wont start

Asked by May 05, 2017 at 04:36 PM about the 2004 Dodge Ram 1500 SLT LB

Question type: Maintenance & Repair

I have a 2004 dodge ram 1500 3.7 v6. I
recently changed the fuel pump. It ram for 1
day and stalled out on the road. Now it will
not start. I have checked everything. The fuel
pressure is 58 to 52. All fuses and relays
good. I have spark. I diconnected the
negative battery cable for about 5 minutes.
It started and idle reved up high. I shut it off.
Restarted it. It ram crappy. Now no start
again. It just cranks. Any clue

5 Answers


are the injectors firing ? Is one of them stuck open ? Is that the normal fuel pressure ? Purge the fuel rail when it won't start and try again , don't start any fires . Let us know what happens .

How do you check if the injectors are firing? Not sure on the pressure. The internet said around that pressure. How do you purge the fuel rail. I did push the Schrader valve and emptied the rail before test. To late started a small fire. But no damage to wires. Just back of insulation behind of manifold. Starter fluid did it.

I got these codes also off of the dash, after turning the key 3 times. P0508, P0113, and P 0123


there's a couple of web sites that list the codes , you'll have to do the leg work and get there definitions , if it started after emptying fuel rail it could have been a bad regulator , as far as injectors they make a noid light , but what I did ,(now don't tell anyone) is got an old stethescope from a nurse and if you put it on the injector you can hear it "piddle " away .

1 of 1 people found this helpful.

Thank you. I looked up the codes. Guess I will have to dig deeper. After I installed the new fuel pump, the truck Ran great for a day. There was some popping coming from bed area. Hard to tell exactly where driving down the road. Wondering if that has something to do with it. It ram great before the fuel pump went out. I'm pulling my hair out trying to figure this out.

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