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  1. C

    Return rubber line keeps popping off

    I cleaned everything 2 times put truck back together have exergy fpr in there new injectors new return and feed new rubber hose on driverside under ear bent like u shape and it's popped off everytime I drive it it lasted 40 minutes this last time so I am kinda stuck tanks been cleaned also...
  2. C

    Return rubber line keeps popping off

    Is there anywhere that return on tank could be clogged
  3. C

    Return rubber line keeps popping off

    No I cleaned all lines cleaned tank Installed new return line Cleaned injector metal lines New injector new rails new cp4
  4. C

    Return rubber line keeps popping off

    I meant fuel line on return off tog of cp4 driverside u shape hose to return under egr keeps popping off and is spraying fuel. Truck runs and drives no dtc I cannot figure it out is there a possibility the return on the tank is clogged. As I have shoved air through those lines and no...
  5. C

    Return rubber line keeps popping off

    2016 duramax cp4 replacement cleaned everything new injectors new return lines cleaned tank Fuel return rubber hose under ear keeps popping off Only thing I can think of pump inside tank is clogged any suggestions