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Engine cranks, but no start.Update........Update to the update........

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I just bought a 2002 Ram 3500 5.9 six speed manual a couple of weeks ago and drove it home. Went to start it a couple of days ago and it wouldn't start. Cranks but no start. Checked batteries and had 1 bad one one so I replaced both. Same issue with new batteries installed. checked codes. P0123 and P1694. Wait to start light does not illuminate and can not hear lift pump come on. I did the dash light test with the trip meter depressed and wait to start still doesn't illuminate. The only thing I did between when it was running and not running was hook up some wires to make the running boards lights work.

    There is some evidence of rats chewing some wires but nothing around the Ecu or Pcm. Any help would be appreciated at this point!

Thanks, Paul

 

Update.......... Completed W-T's grounding Mod and it seems to have fixed the problem. Had to go in and clear codes to get rid of the cel, but it hasn't come back yet.

 

Update..... Well back to square one. Truck was running great, went to start it this morning and no wait to start light. Turned key off and then back on, WTS came on flickered then went off and stayed off. No start. No lift pump either. There were a couple of other grounds I didn't mess with so I'll start there. Starting to get frustrated!

Edited by Cal556
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  • Cal556
    Cal556

    Yes the WTS light now comes on, along with the heating grid and lift pump. Also seems to be charging much better too! Just a hair over 14 volts.

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Loosen one of the injector lines at the head and see if you any fuel to the engine while cranking. You may just have a small fuel leak somewhere and loosing prime in the system. the WTS light is concerning but try and eliminate simple things first.

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Just an update........ Did the complete WT grounding Mod and it seems to have fixed the issue. 

  • Author

Yes the WTS light now comes on, along with the heating grid and lift pump. Also seems to be charging much better too! Just a hair over 14 volts.

Edited by Cal556

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    These trucks love clean DC power and grounds. Solves some weird things that can happen. Good to hear it worked out for you.

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