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Engine cranks and fires then dies, PLEASE HELP

Well I appreciate all the help guys, I ended up taking it to the mechanic. He said there were no codes to read almost like the computer had been reset. I'm waiting to hear back now, I told him about the security feature and he said he'd look into it. Thanks again for all the advice I'll keep...
- Burban117
- Post #16
- Jul 27, 2020
- Forum: Engine Performance + Maintenance
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Engine cranks and fires then dies, PLEASE HELP

What else would cause the injectors not to work, relays to check, fuses, wires that could have shorted
- Burban117
- Post #13
- Jul 26, 2020
- Forum: Engine Performance + Maintenance
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Engine cranks and fires then dies, PLEASE HELP

No luck it still just cranks, fires, and then immediately dies. The security light never flashed
- Burban117
- Post #12
- Jul 26, 2020
- Forum: Engine Performance + Maintenance
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Engine cranks and fires then dies, PLEASE HELP

To clarify it didn't use to do this I would start the truck and within a few seconds the security light would go off like described in the manual but idk I'm familiar with the theft system so its tell but by that description it makes me feel like the theft system isn't the issue. I'm in the...
- Burban117
- Post #10
- Jul 26, 2020
- Forum: Engine Performance + Maintenance
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Engine cranks and fires then dies, PLEASE HELP

Ok so my truck barely starts I mean it will run for a second at most then die like it's not getting fuel. But when it dies the security doesn't flash. Its always on from the time I turn the key to the on position to the time I turn it off, whether I try to start it or not. By that description I...
- Burban117
- Post #9
- Jul 26, 2020
- Forum: Engine Performance + Maintenance
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Engine cranks and fires then dies, PLEASE HELP

No aftermarket security system Quick question since I'm new to this security Passlock system. So my security is on constantly, I've heard that its supposed to flash when the security system has been tripped but mine just stays on all the time Any thoughts
- Burban117
- Post #7
- Jul 26, 2020
- Forum: Engine Performance + Maintenance
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Engine cranks and fires then dies, PLEASE HELP

No I appreciate long posts. The more brains I can pick and ideas I can look into the better. Dropped88 seems to think it might be the passlock system too. At first it seemed like a ignition issue and now it seems like a fuel issue despite getting good pressure so maybe it is a relay or...
- Burban117
- Post #4
- Jul 26, 2020
- Forum: Engine Performance + Maintenance
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Engine cranks and fires then dies, PLEASE HELP

Here's the situation. 1998 Chevy Suburban K1500 350 Vortec I have no idea what happened, it drove it home and parked it, tried to drive to work the next morning and it would crank and fire and run for all of 1 second or too before dying. What I Know Security light is on but not flashing when...
- Burban117
- Thread
- Jul 26, 2020
- Replies: 18
- Forum: Engine Performance + Maintenance