Cables maybe? This thing has been a royal PITA ever since I had that problem with it a few months ago.
It has the batteries in it that came in the Tahoe. I guess that I should stop & have them load tested. When I moved em from the Tahoe they used to spin that over like fast & with authority. It does seem to struggle cranking it, not as fast as the Tahoe.
The Starter is brand new Delphi from advance.
New Bosch GP's well 7 of them all the GP connectors were checked & have power.
GP relay is about 6 months old
Fuel filter about 4K miles ago
LP runs & puts out about 6 psi w/ motor off & about 5 at idle.
FM heater was changed last fall, now that friggin O ring could be weeping...? Need to check that.
The one difference prolly worth mentioning is removing the fuel cap on this has never had any wooosh like the Tahoe & it's not the cap cause I swapped em, no difference, slight woosh on the Tahoe nuttin on this one.
It has never started the same ever since that morning last Nov when it didn't start, something just ain't quite right just have not found it yet...maybe the cables need replacing? Not sure but it's wearing me patience mighty thin!