24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps
Sponsored by Trailer Plus

Priming fuel system

Thread Tools
 
Search this Thread
 
  #1  
Old 07-18-2012, 11:10 AM
1999stroker's Avatar
Diesel Bomber
Thread Starter
Join Date: Jun 2011
Location: Squaller holler, ohi
Posts: 3,368
Received 143 Likes on 125 Posts
Default Priming fuel system

How can I prime the fuel system after changing my fuel filter? I don't have an extra set of hands at the moment. Is there a simple way to do it? Please help

Sent from my dumb phone!
 
  #2  
Old 07-18-2012, 11:14 AM
wyodiesel92's Avatar
Diesel Wrench
Join Date: Apr 2010
Location: wyoming
Posts: 576
Likes: 0
Received 22 Likes on 21 Posts
Default

Bump the starter a few times with everything tight and after a few times start the truck. May run a little rough at first but bring up the rpms for a little and you'll be good.
 
  #3  
Old 07-18-2012, 11:15 AM
RAW's Avatar
RAW
RAW is offline
Administrator

iTrader: (1)
Join Date: Aug 2009
Location: Alberta
Posts: 6,218
Received 684 Likes on 549 Posts
Default

Turn the key on, bump the starter (but not not let the engine start), and let the key rest in the run position. This will run the lift pump for aprox. 25 seconds. If that doesn't get all the air out, crack the return line banjo bolt on the injection pump and do it again until fuel comes out.
 
  #4  
Old 07-18-2012, 11:19 AM
1999stroker's Avatar
Diesel Bomber
Thread Starter
Join Date: Jun 2011
Location: Squaller holler, ohi
Posts: 3,368
Received 143 Likes on 125 Posts
Default

Where's the return like raw?

Sent from my dumb phone!
 
  #5  
Old 07-18-2012, 11:22 AM
1999stroker's Avatar
Diesel Bomber
Thread Starter
Join Date: Jun 2011
Location: Squaller holler, ohi
Posts: 3,368
Received 143 Likes on 125 Posts
Default

And Wats the size? 3/4?

Sent from my dumb phone!
 
  #6  
Old 07-18-2012, 11:28 AM
RAW's Avatar
RAW
RAW is offline
Administrator

iTrader: (1)
Join Date: Aug 2009
Location: Alberta
Posts: 6,218
Received 684 Likes on 549 Posts
Default



19mm or 3/4"
 
  #7  
Old 07-18-2012, 11:47 AM
1999stroker's Avatar
Diesel Bomber
Thread Starter
Join Date: Jun 2011
Location: Squaller holler, ohi
Posts: 3,368
Received 143 Likes on 125 Posts
Default

Can hear pump running but won't turn over

Sent from my dumb phone!
 
  #8  
Old 07-18-2012, 11:51 AM
1999stroker's Avatar
Diesel Bomber
Thread Starter
Join Date: Jun 2011
Location: Squaller holler, ohi
Posts: 3,368
Received 143 Likes on 125 Posts
Default

turn it over until fuel comes out of injection pump or line?

Sent from my dumb phone!
 
  #9  
Old 07-18-2012, 12:00 PM
RAW's Avatar
RAW
RAW is offline
Administrator

iTrader: (1)
Join Date: Aug 2009
Location: Alberta
Posts: 6,218
Received 684 Likes on 549 Posts
Default

If you loosen #4 half a turn to 3/4 of a turn, air will come out with the lift pump running. Fuel will follow when the air is out of the system. If you can't get fuel or air from there, try the inlet, #3.
 
  #10  
Old 07-18-2012, 12:00 PM
1999stroker's Avatar
Diesel Bomber
Thread Starter
Join Date: Jun 2011
Location: Squaller holler, ohi
Posts: 3,368
Received 143 Likes on 125 Posts
Default

Well I tried that and no luck. Fuel was dripping out of IP but couldn't get her to fire

Sent from my dumb phone!
 


Quick Reply: Priming fuel system



All times are GMT -5. The time now is 05:44 PM.