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Old Nov 18, 2007 | 10:44 AM
  #1  
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Help!help!!help!!!

JUst cranked my truck up and was backing out of the carport and I think I heard a pop. The motor shut off and it will turn and turn but it will not fire. ANY IDEAS? PLEASE HELP!! It is almost like when I had an oil leak, and lost 100% of the oil due to a drain plug falling out, and then I had to get a sensor re-set and it has run FINE since then. The motor has 225,000 on it.

Please help,
 
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Old Nov 18, 2007 | 11:01 AM
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Does the tach move? If not it could be the cps. Doesn't explain the pop though.
 
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Old Nov 18, 2007 | 11:28 AM
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Hmmmm, broken HPOP which will stop the injectors from firing right away.
Just a guess, going on the description given.
 
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Old Nov 18, 2007 | 11:29 AM
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Help!help!!help!!!

The tach moves a little. I have 225,000 + miles on it. Never had any trouble. I run Royal Purple 15W40 in the motor. I am NOT technically inclined, so any help you can give me would be great.

Thanks,

John
 
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Old Nov 18, 2007 | 11:31 AM
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Help!help!!help!!!

What is an HPOP and what does it cost to replace?
 
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Old Nov 18, 2007 | 11:42 AM
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Originally Posted by big315
What is an HPOP and what does it cost to replace?
High Pressure Oil Pump.
Please don't assume that is what the problem is. I'm only guessing at the cause of the problem from your description of the sound that the engine made.
You need to get it properly diagnosed.
HPOP's cost around $700.00 plus labor if I remeber correctly.
 
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Old Nov 18, 2007 | 12:03 PM
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Have you checked all your fuses? Maybe something shorted out a blew a fuse. A short large enough would make a poping noise.
 
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Old Nov 18, 2007 | 12:14 PM
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Help!help!!help!!!

I'll try that first. Can you recommend what number to look at? I'll get my owners manual out to see which ones to look at first.

Thanx,

John
 
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Old Nov 18, 2007 | 12:21 PM
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Best bet is to check all the fuses, under hood and under dash.
 
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Old Nov 18, 2007 | 12:30 PM
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Originally Posted by big315
I'll try that first. Can you recommend what number to look at? I'll get my owners manual out to see which ones to look at first.

Thanx,

John
I think # 30 is for the fuel heater,,

Shuts off the PCM....
 
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Old Nov 18, 2007 | 12:32 PM
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well, first off:
do you get WTS light ? if not you got a bad fuel bowl heating element.if yes proced....
second : watch you oil Press gauge while you crank and see if it goes up , if not its your HPO system. if yes than you have to keep looking.
if you get all of the above check you fuel pump reset switch in a passenger side kick panel.
 
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Old Nov 18, 2007 | 06:08 PM
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I agree check your pcm fuse, if it is blown unplug the fuel bowl heater, replace fuse
 
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Old Nov 18, 2007 | 06:22 PM
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Originally Posted by PETE'S_7.3PSD
second : watch you oil Press gauge while you crank and see if it goes up , if not its your HPO system.
Don't want to be a picky-pants, but doesn't the dash OP gauge measure the LPO system only? By virtue of that failing, there will be no HPO though so that is partially correct. Don't want him zeroing in on that $700+ HPOP unnecessarily.
 
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Old Nov 18, 2007 | 06:58 PM
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well when my IPR got stuck open i didnt see my gauge moving. and was no start, just cranking. so im not sure what this gauge monitors but thats what happen to me.
i would check connectore on ICP and IPR too.
 
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Old Nov 18, 2007 | 06:58 PM
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Yeah, I didn't think of the fuse popping. I agree, look there first. I was thinking of something breaking and making the pop noise and the HPOP is the only thing that I could think of that wouldn't cause the engine to lock up.
 
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