no start on 2001 gmc duramax lb7
#1
no start on 2001 gmc duramax lb7
i have a 2001 gmc duramax LB7, and i have some form of fuel problem and i cant figure it out. why the cp3 pump is sending fuel back to the tank instead of to the injectors.
it has a new pump and regulator, pressure sensor, fuel lines, fuel filter, and i am all out of ideas on what to check.
i did a bottle test and everything was fine and injectors are fine.
this is what it is doing
about 2 weeks ago i came home and pulled in the driveway and it died (like it was out of fuel) but it had pently of fuel. i tried to restart it and it would crank but wouldn't restart.
so now it will start only when i use starting fulid and only stay running if i keep my foot on the pedal, as soon as i take my foot off the petal it die's. it will not start on its own and will not stay running
can anyone help
any idea's????????
thanks
matt
it has a new pump and regulator, pressure sensor, fuel lines, fuel filter, and i am all out of ideas on what to check.
i did a bottle test and everything was fine and injectors are fine.
this is what it is doing
about 2 weeks ago i came home and pulled in the driveway and it died (like it was out of fuel) but it had pently of fuel. i tried to restart it and it would crank but wouldn't restart.
so now it will start only when i use starting fulid and only stay running if i keep my foot on the pedal, as soon as i take my foot off the petal it die's. it will not start on its own and will not stay running
can anyone help
any idea's????????
thanks
matt
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