1997 Dodge Ram wont start

Tiny
NATE37
  • MEMBER
  • 1997 DODGE RAM
  • 5.9L
  • V8
  • 4WD
  • AUTOMATIC
  • 194,000 MILES
I changed the fuel pump on my 97 dodge 1500 the fuel pump is kicking on but truck wont start is there something I am missing to do.
Wednesday, August 20th, 2014 AT 12:07 AM

7 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,871 POSTS
Could use a lot more information. Why did you replace the fuel pump? Were you having the same problem with the old one? Have you checked for spark? When are you expecting the fuel pump to run, all the time the ignition switch is on or just for one second after turning it on?
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Wednesday, August 20th, 2014 AT 12:25 AM
Tiny
NATE37
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  • 4 POSTS
The old pump stopped working and yes I understand the pump don`t stay on constantly after the key is turned it cycles on that's all. What I don` t understand the new pump is definitely cycling on but truck wont start
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Wednesday, August 20th, 2014 AT 12:44 AM
Tiny
CARADIODOC
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Have you checked for spark?

One percent of no-starts are caused by no spark. One percent are caused by no fuel pressure. 98 percent of no-starts are caused by no fuel pressure AND no spark. That's why it's important to not get hung up on the first thing you find missing. You must check for both.
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Wednesday, August 20th, 2014 AT 1:16 AM
Tiny
NATE37
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  • 4 POSTS
Yes it has spark and I figured out the problem thanks
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Wednesday, August 20th, 2014 AT 1:30 AM
Tiny
CARADIODOC
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Dandy. Would you care to share the solution?
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Wednesday, August 20th, 2014 AT 1:49 AM
Tiny
NATE37
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  • 4 POSTS
Bleed the fuel lines and rails
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Wednesday, August 20th, 2014 AT 2:07 AM
Tiny
CARADIODOC
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That should have been automatic. The pump runs during engine rotation, (cranking or running), and the fuel and air would go through the regulator and back into the tank within a few seconds. Regardless, I'm happy it's running.
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Wednesday, August 20th, 2014 AT 2:26 AM

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