H2 on E then will not crank or start..HELP!!
 

I was driving the truck and knew I was running on E. The truck began to sputter and then stalled. Figured I ran out of fuel. Put 2 gallons of gas into the truck and tried restarting. It would not crank. The battery is fully charged and all gauges come on. Checked all ignition, crank and starter fuses. The passlock 2 light seems to come on after a few minutes and stay lit. The onstar light is lit up red. The recirc light on the climate control comes on even when unit is turned off. Please help and suggestions.

Re: H2 on E then will not crank or start..HELP!!
 

Disconnect the battery for 10 minutes it will reset the PCM. See if that does anything.

Re: H2 on E then will not crank or start..HELP!!
 

then go buy a new fuel pump...

Re: H2 on E then will not crank or start..HELP!!
 

try filling up before you run out of gas... :OWNED:

Re: H2 on E then will not crank or start..HELP!!
 

Already tried disconnecting battery for approx 30 minutes, no success. Thanks for the tip on filling up before running out of fuel. Trust me I wish I did. Does anyone have any other suggestions before I contact dealer in morning for a nice large repair bill.

Re: H2 on E then will not crank or start..HELP!!
 

Even if my fuel pump were blown, the motor should crank, correct?

Re: H2 on E then will not crank or start..HELP!!
 

yes, it would still crank...

Re: H2 on E then will not crank or start..HELP!!
 

pull it out of park and put back in park or nuetral and try starting.

if you have a full battery and not getting any crank at all, thats my best advice.

not sure what else would make it dead like that without cranking.

Re: H2 on E then will not crank or start..HELP!!
 

check all fuses in underhood fuse block and use a voltmeter to make sure you
have full battery voltage, assuming battery has full charge, if not full voltage
like anything under 10 volts, suspect ignition switch. hope this helps.

Re: H2 on E then will not crank or start..HELP!!
 

if not crankin...possibly alternator..did u notice if your panel was appearin dim??

Re: H2 on E then will not crank or start..HELP!!
 

Most likely it is the starter. Have someone tap on the starter with a hammer while someone else tries cranking it. You can also try jump starting it, when my starter was going I jumped it and the extra voltage gave the starter the extra push to crank over. If it is the starter it is a easy driveway repair.

Re: H2 on E then will not crank or start..HELP!!
 

Alternator would have nothing to do with cranking. If the battery has a charge the starter should still turn.

Re: H2 on E then will not crank or start..HELP!!
 

Hey guys, thanks for all the help. Heres what I've done so far. The battery has plenty of juice, Lights and dash are all fully functional and battery reads full power. Have tried tapping starter while someone else cranked, no luck. I have checked all of the fuses and relays and they all seem to be fine. I have even swapped good relays from other locations to see if they would work. I spoke to the dealer and they suspect it might be the BCM. Keep the suggestions coming please.

Re: H2 on E then will not crank or start..HELP!!
 

Have you checked the leads at the starter to see if you are getting power to it? I would start there and trace backwards. If you get power there when you turn the key, then you know it is a starter/solenoid problem. If you get no power there, then find the next component up. In the old days that would be the ignition switch, but I am not sure if there are any modules or anything between the switch and starter on these trucks.

Re: H2 on E then will not crank or start..HELP!!
 

Solution: Took truck to dealer and they replaced the ignition control module. This solved all the issues.