dmax woes. won't start - Diesel Bombers

Chevy/GMC Duramax 04.5-05 LLY Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines

dmax woes. won't start

  #1  
Old 03-30-2012, 12:33 PM
mobetter's Avatar
Diesel Fan
Thread Starter
Join Date: Oct 2009
Location: Dallas Fort Worth
Posts: 32
Thanks: 0
Thanked 2 Times in 1 Post
Default dmax woes. won't start

having problems with my truck lately.
had loping idle. replaced the FPR with new stock bosch fixed that issue.
truck would stumble on acceleration, replaced FPRV fixed this problem.
truck has airdog lift pump, new stock filter, all new orings in filter housing.
truck has fuel pressure at the injection pump. all injectors bal are within tolerance.
I drove the truck for a week with no issues. now won't start.
diablo sport shows low rail pressure.
any ideals?
2004.5 lly
 

Last edited by mobetter; 03-30-2012 at 12:34 PM. Reason: corrections
  #2  
Old 03-30-2012, 10:58 PM
Diesel Fan
Join Date: Mar 2012
Location: Denver ,Co
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Manually check your fuel pressure at the rail. Might need a fuel filter and or pump. Any engine codes?
 
  #3  
Old 03-30-2012, 11:55 PM
Diesel Bomber
Join Date: Dec 2010
Location: Fool's Golden State
Posts: 1,188
Thanks: 0
Thanked 110 Times in 106 Posts
Default

check

Prime. try re-priming until bulb is hard

cranking RPM, batteries

injector return rates

CP3 return rate

anything else done to the truck? Mods?
 
  #4  
Old 04-02-2012, 08:28 AM
mobetter's Avatar
Diesel Fan
Thread Starter
Join Date: Oct 2009
Location: Dallas Fort Worth
Posts: 32
Thanks: 0
Thanked 2 Times in 1 Post
Default truck has airdog 100

the truck has a airdog lift pump and shows about 9 psi.
truck started fine the next day and has been starting fine the last few days.
injector balance is within spec.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
cjgregory
Diesel In Distress - Support Ticket
0
03-31-2015 01:45 PM
MANNCLAN
Chevy/GMC Truck and Duramax Turbo Diesel Forum
0
03-08-2015 06:32 PM
IGOU
Diesel In Distress - Support Ticket
1
03-08-2015 04:25 PM
ronstop
5.9 Liter CR Dodge Cummins 03-07
0
02-26-2015 09:48 AM
carid
Diesel Bombers Sponsors
0
11-18-2014 06:49 AM


Thread Tools
Search this Thread
Quick Reply: dmax woes. won't start


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.