1998 Dodge Dakota no fuel from injectors

Tiny
NOMAD30251
  • MEMBER
  • 1998 DODGE DAKOTA
  • 3.9L
  • V6
  • 2WD
  • AUTOMATIC
  • 275,000 MILES
Have fuel pressure on rail. If iI put gas in centuries it will fire. Had trouble with what I thought was the auto choke. Start ok but then wouldnt take fuel. Punch it a couple times it would be ok till I shut it off. Yesterday running fine then just died. Any help?
Tuesday, June 17th, 2014 AT 11:57 AM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
Your description is very confusing.

"If iI put gas in centuries it will fire."

That tells us you have spark, but what are "centuries"? When it ran when you poured gas in, was that before or after it died? The chain of events isn't clear.

You don't have an automatic choke. You have fuel injection. There are some common failures that are relatively easy to fix, but they cause no spark. So I don't get confused or send you down the wrong path, lets start at the beginning. Check for spark first. If that is missing, forget about the fuel system. The pump is still going to run for one second after you turn on the ignition switch, so you will have fuel pressure at the fuel rail, but with no spark, the injectors won't pulse either and the fuel pump won't resume running during engine cranking.

If you do have spark, measure the fuel pressure with a gauge. It's not sufficient to push the valve in the test port and get squirted with fuel. Ten pounds of pressure will make a really big spray, but you need at least 40 pounds for the engine to run.
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Wednesday, June 18th, 2014 AT 12:30 AM

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