24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps
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Hard start

  #1  
Old 05-02-2019, 10:49 AM
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Default Hard start

Hi all, ive used the site a few times over the years so I finally decided to join!

Got harding starting when the engine warms up. Once it starts no signs of trouble. Shut it off and it can take a few seconds of cranking to get it going...

started it this morning cold and chugged for a bit then fired up. The start seemed a but laboured as if battery or starter pwr.

Battery 13.5ohms..drops to 9 when starter engaged then eventually works back up to 14.22

Rp100 lp. Edge tuner shows a solid 16-18psi.changed fuel filter.

Codes are;

po336
P1693
p1682

Want to rule out the simple things before I even go down the VP44 road.

anyone see anything similar??
 
  #2  
Old 05-09-2019, 10:23 AM
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P1693 is a companion code, means other codes are present.
Po336 is the crankshaft position sensor
p1682 is a low voltage fault
I've heard of dirty grounds doing some weird things. I'd clean the battery terminals and posts and clean the ground connections where they ground to the pickup. Might also have both the batteries load tested. That's where I'd start anyway.
 

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