1999 Dodge Ram 1999 Dodge Ram - Fuel Delivery Issue

Tiny
SHAMMERSLEY
  • MEMBER
  • 1999 DODGE RAM
  • V8
  • 2WD
  • AUTOMATIC
  • 141,000 MILES
Originally my fuel pump died. Normally I would hear the fuel pump kick in for its intial 2 second primer, but over the last couple of weeks I had noticed that if I left it idling it would start to die. Then, it just quit starting.

Anyway, so I replaced the fuel pump (not the whole module, just the pump itself) with an OEM replacement.

Got the tank back up, primed the fuel line and got the truck running. But, where as before I could not get the truck to start at all, then it took a couple of turn overs and it would eventually start (although while driving it seemed very sluggish, especially from a stop). That led me to believe that I should have changed the filter/regulator aswell. I found the shrader valve on the fuel rail and pressed it in, no pressure when off, little pressure from intial 2 seconds, and fuel flow when engine idling.

So, I dropped the tank again and replaced the filter/regulator. Although I noticed two things. 1) there was a slight kink in the plastic fuel line before it hit the metal line to the engine. 2) I aslo noticed two heavy kinks in what I think is the EVAP line, it runs to a canister on the other side of the truck.

I tried to straighten the lines best I could.

Now it runs better, but still not right. It didnt take as much to start it, and seems to be running smoother, but it appears to still be loosing pressure.

Could the EVAP line be causing this? What else should I be looking for?

Thanks For anyones help.

Scott.
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Thursday, August 5th, 2010 AT 11:05 AM

4 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Scott:

Have you checked the fuel pressure regulator?
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Friday, August 6th, 2010 AT 12:06 AM
Tiny
SHAMMERSLEY
  • MEMBER
Apparently on this Ram, the fuel pressure regulator is combined with the fuel filter located on top of the fuel pump assembly module. Which I have changed out.

Unless there is another regulator somewhere that I am unaware of?

I was driving home from work last night when all of a sudden it started bogging down, almost like it was out of gas, could not press the accelerator much at all.

Once I got home, I left it a couple of minutes and strarted it back up, and it ran fine. Even this morning it ran fine.

I am at a loss. There just doesnt seem to be enough pressure at the rail. My brother has almost the exact same Ram, just a year older and 5.2L. We could tell the difference in pressure between the two.

What about fuel injection? Not so much the injectors themselves, but could there be another regulator there somewhere?

Thanks.
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Friday, August 6th, 2010 AT 8:45 AM
Tiny
JACOBANDNICKOLAS
  • EXPERT
You are correct about the regulator. What is the fuel pressure reading?
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Saturday, August 7th, 2010 AT 12:03 AM
Tiny
FARMERWILL
  • MEMBER
I am having the same issue with my 99 ram feeling sluggish and acting like it's out of gas. The difference in mine is I can accelerate hard and it staightens out for the rest of the trip. If I let it sit for an hour or so and drive it, it does the same thing. This problem is getting worse. I'll keep watching this to see any potential fix.
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Sunday, August 22nd, 2010 AT 8:26 PM

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