Chevy and GMC Duramax Diesel Forum banner

1 - 2 of 2 Posts

·
Registered
Joined
·
2 Posts
Discussion Starter #1
Alright I have lurked forever and finally decided to post about my problems. I will start from the beginning. Truck is an 02 2500hd with the lb7 245000 miles pretty well taken care of. Fixing it for a buddy of mine. Was brought to me with an issue of not starting after warm unless you pumped the primer. Progressed to not starting unless primed. Prior mechanic rebuilt filter head with the merchant kit but did not fix the problem.
I got the truck and rebuilt the filter head again to be sure it was done right no change. I than ordered a new replacement filter head for an 06 which is just routed a little different no change. Replaced all lines going to and coming from the filter head. Replaced all lines in the valley that were dry rotted, Replaced ficm banjo washers. Replaced injectors with reman from injectors direct, replaced cp3 with pump from injectors direct also, shimmed fprv, replaced lines along firewall, replaced lines along bell housing, installed Kennedy single lift pump, removed bed and verified tank pickup was not plugged. No change. The truck will start and idle forever without issue. As soon as you get on it it will stall, starting from a dead stop laying into it at about 55 it stalls and puffs out white smoke. Shut it off and go pump primer 7 times go crank go pump seven more times and crank and it will start. It will do the same thing over and over. Bypassed filter head no change, bypassed ficm no change. What next? The only sensor that has not been changed is the fuel RAIL pressure sensor is it worth trying that just have not seen any posts about that failing.
 
1 - 2 of 2 Posts
Top