8.1 avalanche cranks but no start - Avalanche Chevrolet Cars & Trucks

Probably no fuel pressure. Have pump pressure checked.

Yes, it can be a fuse. Check the 15amp INJ1 fuse under the hood. Also check the IGN 0, PCM 1 and PCM B fuses.

you need to give more detiles, dos it crank up or not, is it turning or not, also check if the wires are all back on after your both repairs!

If the engine cranks but does not start, you would need to know if you have spark to the plugs and fuel to the injectors to proceed.

what about a broken timing belt
cam shaft /crank shaft position sensor or failed immobilizer

Pull your ignition module and take it to advance auto parts or autozone to have it tested.

sounds like the check valve in the pump is letting the fuel drain back try just cycling key a few times before starting this will prime pump and lines. if cranks up this is most likely cause a fuel pressure gauge will confirm

i have the same problem my avalanche wont crank, and the fuel gage dont go up, when the fuel gage works the truck starts but its been two days and it wont crank plz help...

Possible bad engine crank sensor. Electronic Control Module provides initial timing for start then depends on the crank sensor once started for timing and firing

DISCONNECT THE ECU FUSE FROM YOUR FUSE BOX. WAIT 15 SECS AND THEN RECONNECT AND START YOUR VEHICLE.