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Old 06-29-2010, 06:25 PM   eBay Motors  #1 (permalink)
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Truck shuts off after running for ~5 seconds and won't restart

So, had this problem twice. Each time it was after I left my radar detector, sirius radio and FM transmitter plugged in for a few hours. I don't see how this is related, but those are the only two times I've had a problem.

Truck had been sitting for 3-8hrs, 3 electrical accessories plugged in, cranking speed seems more than adequate.

What happens is this:

I start the truck. Fires right up. Then it shuts off. The first time I think I saw a message on the gauge cluster like "Charging inadequate".

After shutting off, the truck cranks and cranks and cranks but never fires. The first time, it fired after leaving it sit for a minute or two. The second time, I was at home, so I just gave up and figured I'd let the starter cool off.



So, basically, any time I have left the truck for more than a few hours with these accessories plugged in, it fires up immediately and then shuts down. It is very difficult or impossible to restart the truck after this, at least for a certain time period.


Mods:
EGR delete
EFI live
Upgraded tranmission/torque converter (unknown)
Bullydog Outlook w/ pyrometer
4" full exhaust

Any help is VERY appreciated. I've only had the truck for a few days and this is really disappointing...
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Old 06-29-2010, 07:32 PM   eBay Motors  #2 (permalink)
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Ok, so I went and manually primed the fuel system a couple times.

First time, cracked the bleeder, pumped the primer a few times until some fuel came out and then closed the bleeder. Tried to start the truck. No dice.

Second time, cracked the bleeder, pumped the primer a few times, but no fuel came out of the bleeder. Instead, I noticed some trickling down from UNDER the filter.

Does this just mean I need a new filter? Or what?
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Old 06-29-2010, 07:45 PM   eBay Motors  #3 (permalink)
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Start up and die is not typical of filter drama?? it is typical of vehicle antitheft
issues? When it does start up and die is your theft or security light flashing?
have you changed keys??? If nothing proves out then you need to see just what fuel rail pressure is doing??? You need at least 4300PSI to start and stay running.
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Old 06-29-2010, 07:49 PM   eBay Motors  #4 (permalink)
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I haven't noticed the antitheft or security light flashing. Would those be on the cluster?

Key is old/original. It looks like it has every one of the 130k miles on it and the keyless entry fob.
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Old 06-29-2010, 07:52 PM   eBay Motors  #5 (permalink)
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i had that problem and it was the reset valve on the air cleaner so i changed the filter and reset the valve and the problem went away
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Old 06-29-2010, 07:58 PM   eBay Motors  #6 (permalink)
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Ok, definitely something to check. I assume it needs an air filter anyway.
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Old 06-29-2010, 08:13 PM   eBay Motors  #7 (permalink)
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I had one in today that was leaking from the water in fuel sensor. Her truck would stall after startup, then crank continuously until it was primed and would then start. Replaced the sensor and fuel filter since we had it off, and problem solved.
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Old 06-29-2010, 08:29 PM   eBay Motors  #8 (permalink)
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Quote:
Originally Posted by NOYZMKR View Post
I had one in today that was leaking from the water in fuel sensor. Her truck would stall after startup, then crank continuously until it was primed and would then start. Replaced the sensor and fuel filter since we had it off, and problem solved.

Sounds identical to my symptoms. Especially when you factor in the drip I saw from the bottom of the fuel filter.

Thanks so much for this!
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Old 07-09-2010, 07:52 AM   eBay Motors  #9 (permalink)
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New water in fuel sensor solved all of my problems
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Old 07-09-2010, 08:26 AM   eBay Motors  #10 (permalink)
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Had the same problem-- and it was just a loose filter-- Just a little turn to tighten it, and it did not do it again!
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