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  #1  
Old 10-19-2012, 06:30 PM
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Default No start 04 ram

Tried to start the truck tonight and it won't fire. It has spark and I can here the fuel pump prime but the injectors are not firing. Any suggestions are appreciated
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Old 10-20-2012, 10:19 AM
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A faulty PCM is possible. The fact that you have spark makes me think it's not a crank position sensor. Any codes stored in the PCM?
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Old 10-20-2012, 04:56 PM
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The only code was a lean condition which makes sense if there is no fuel . There has been a lot of rain the last two weeks is there somewhere that is more suseptable to water
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Old 10-21-2012, 08:29 AM
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A lean code won't set on a cold engine, so this isn't going to be related to your no start condition. I'm not aware of any place where water intrusion is an issue.
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Old 10-21-2012, 10:49 AM
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Do these trucks have a Schroeder valve for testing fuel pressure? If so where is it?
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Old 10-21-2012, 04:17 PM
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OK I pulled the cover off the motor and found the test port. Put on my fuel pressure tester and I'm getting no pressure. I have voltage and a ground at the pump plug. I thought I could hear the pump prime but it's not very loud. Where is the fuel pressure regulator? Is it part of the pump? I don't see one up by the fuel rails so that's what I'm assuming. I think I'm going to order a new pump and replace that. Any other suggestions before I do?

Thanks all,
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Old 10-21-2012, 04:21 PM
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After listening some more I think what I'm hearing is the throttle body moving on the initial key on and not the pump so I'm going to get one on order from RockAuto.
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Old 10-22-2012, 02:18 PM
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I'd make sure I had power and ground at the pump before I threw money at a new one.
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Old 10-23-2012, 11:07 PM
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Voltage and ground are good. Tried banging on the tank a bit but didn't get anything. The new pump is at home waiting for me to put it in once I get home from Texas. Hopefully it's nice this weekend since ill be doing the swap in the driveway. Has anyone ever siphoned gas from one of these trucks? I've had issues in the past trying to get the hose to go down into the tank on newer vehicles. The pump had to go with about 20 gallons of gas in the tank.

Last edited by bfarroo; 10-23-2012 at 11:09 PM.
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