5.9 Liter CR Dodge Cummins 03-07 Discussion of 5.9 Liter Dodge Cummins Diesels with Common Rail Injection

Cummins Starting Hard

  #1  
Old 04-12-2011, 12:16 AM
JimmyT's Avatar
Diesel Fan
Thread Starter
Join Date: Oct 2009
Location: Port Angeles, WA
Posts: 69
Received 1 Like on 1 Post
Default Cummins Starting Hard

Lately my 2004 dodge cummins has been starting kind of hard. It usually starts right up after a couple of cranks. Now its taking a few seconds to start and its not just in the morning. Could it be the injectors. I have about 120,000 miles on her
 
  #2  
Old 04-12-2011, 07:26 AM
Hummin Cummins's Avatar
Diesel Wrench
Join Date: Nov 2008
Location: ND
Posts: 574
Received 29 Likes on 27 Posts
Default

From what I have heard from other people is that a truck like yours will start hard when the injectors are getting worn. Just keep a eye on your oil lever to make sure it isn't rising.
 
  #3  
Old 04-12-2011, 08:14 AM
dieseldude03's Avatar
Diesel Bomber
Join Date: Sep 2008
Location: Mansfield, OH
Posts: 1,138
Received 117 Likes on 80 Posts
Default

If you haven't done it, change the fuel filter first. Then I'd look at the lift pump (should be behind the fuel filter housing). If it's on it's way out (or cracked and letting air into the line, like mine was), it'll cause problems like that. Need to figure out what kind of pressure it's puttng out before going any further.
 
  #4  
Old 04-12-2011, 08:39 AM
dangerous1965's Avatar
Diesel Bomber
Join Date: Dec 2008
Location: Escondido CA
Posts: 1,713
Received 111 Likes on 105 Posts
Default

Injector time
 
  #5  
Old 04-12-2011, 08:48 AM
steved's Avatar
Diesel Wrench
Join Date: Mar 2007
Location: Mohrsville, PA
Posts: 582
Likes: 0
Received 36 Likes on 35 Posts
Default

Find, beg, buy, or borrow a rail pressure gauge...that will tell you quite a bit. It sounds like low rail pressure which has a multitude of causes ranging from a failed pressure valve to worn injectors.
 
  #6  
Old 04-13-2011, 12:29 AM
JimmyT's Avatar
Diesel Fan
Thread Starter
Join Date: Oct 2009
Location: Port Angeles, WA
Posts: 69
Received 1 Like on 1 Post
Default

What are some good injectors? I'm not trying to make a ton of power. My truck is pretty much bone stock. I just want something that's going to last me for a long time but better then stock....any suggestions?
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
hurriedcoyte
Diesel In Distress - Support Ticket
3
06-19-2015 06:26 AM
PeteBug
24 Valve 2nd Gen Dodge Cummins 98.5-02
4
06-11-2015 12:16 PM
gwmeyer
12 Valve 2nd Gen Dodge Cummins 94-98
1
05-14-2015 12:46 PM
trab123
24 Valve 2nd Gen Dodge Cummins 98.5-02
0
02-09-2015 09:44 AM
91 7three
Ford 83-94 6.9 and 7.3L General
1
01-07-2015 09:37 AM


Thread Tools
Search this Thread
Quick Reply: Cummins Starting Hard



All times are GMT -5. The time now is 01:32 PM.