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crank but no start
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  1. 911 Problems Forum
    I have a 2003 lb7 ran great when I first got it 161000 miles except sometimes the starter grinds no teeth are missing on the flywheel and I put a new starter on still does it. Then it at times would start right up and sometimes it wouldn't if I let it set for an hour or sometimes all night it...
  2. 01-04.5 LB7 Duramax Powertrain
    I've got an 04' silverado with a vin 1 lb7 and once every couple months it will crank but not fire no matter how long you crank. I replaced the primer pump, fuel lines and fuel filter. It changed nothing. I can prime it up tight with no air and as soon as I crank it I lose the prime. I can prime...
  3. 01-04.5 LB7 Duramax Powertrain
    Hello everyone. I know this has been discussed many times, but I can't find my specific issue. Truck is a 03 LB7 with 260k on it. I do the fuel filter religiously every oil change because of these pesky injectors. I have also had to replace the passenger side bank of injectors in the last 10k...
  4. 07.5-10 LMM Duramax Powertrain
    I have a 08 lmm will crank but not start. Started up first thing in the morning noticed it was a little “noisey” like a rattle. Checked oil ect everything was up to par. Drove appx 10 miles and started noticing a vibration when on the accelerator. Pulled into a gas station and it had a huge lope...
  5. 04.5-05 LLY Duramax Powertrain
    I’ll start this off by saying I haven’t heard this truck run yet. LLY. Doesn’t prime. I believe there’s air drawing into the fuel system. Previous owner replaced fuel tank, sending unit, fuel lines up until where they turn up at the fire wall under the cab, filter housing and has a cat filter...
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