fuel problems on 2007 LBZ - Chevy and GMC Duramax Diesel Forum
06-07 LBZ & LLY Performance Parts Discussion Discussion of Performance Parts For the 06-07.5 LBZ/LLY Duramax Trucks No Advertising

 
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post #1 of 2 (permalink) Old 12-09-2018, 04:19 PM Thread Starter
 
Join Date: Dec 2018
Posts: 1
fuel problems on 2007 LBZ

I have a 2007 Duramax LBZ have a fuel issue truck
wouldn't start I found talk to a few people they told me
check the filter it was okay I brought it to a shop he
suggested before I do anyting I need to replace all fuel
lines fuel filter housing and then determine from there I
replaced all the lines a fuel filter housing
Truck will not still start the only way I can get it to
start is someone must pump the primary on the
filter housing as I start it truck will not idle will run
at 1000 RPM or higher
So after replacing all lines I determined that there is no
leaks in the lines or housing
I thought the system the problem would be from the
filter to the injector pump so I just connected the
hose off the filter and pressurize the line to 10 PSI I
can hear it blowing right back into the tank I did not
think this is profit does have does anyone have any
information on what might be wrong fuel pressure
regulator fuel pressure release valve injector pump
injectors I would appreciate any help
Randy G is offline  
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post #2 of 2 (permalink) Old 08-25-2019, 09:59 PM
 
Join Date: Aug 2019
Posts: 5
Reseal the fuel filter. Sounds like it's sucking air from o-ring leaking!
Drewslbz is offline  
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