Hot start problem

1995f2507.3

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Have looked on the other threads to solve this and it's always coming down to a icp sensor. My sensor is from autozone so I can return it. I have been through 4 sensors in less than 2 months. Truck will run great and when I turn it off and try to restart it, it just cranks. I have 11.19 volts while cranking. What else is there to check. When the trucks cold will fire up everytime no problem. I dot have AE or a scanner to see icp or ipr. Should I consider changing out the ipr? I'm not sure how long this one has been in the truck. I have movement on my tach it looks like around 200 rpm while cranking. Any input will help.


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1995f2507.3

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Also when I unplug the icp sensor it has no effect on it starting or not.


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Magnum PD

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Gonna need to see what pressure the injectors are getting. Changing the IPR might not be a bad thing. Coil could be bad
 

1995f2507.3

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What could I get that's somewhat cheap to see what pressure the injectors are getting? Does the scan gauge 2 monitor that?


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1995f2507.3

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Where would I hook a mechanical gauge up to? What kind of gauge should I get?


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1995f2507.3

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If you could I would greatly appreciate it.


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NotbrettboatIswear

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It's an idea but that's also assuming that actual HPOP pressure is being reflected to the PCM. May or may not. A launch 123 pro works great with these trucks and they're like $200-250? Worthwild investment. The few 6.0s I've played with it also seemed to work great. Useless on a 6.7
 

1995f2507.3

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Just checked the hpop and it's empty. So I wonder if my icp is good and ipr it's just not creating oil pressure due to the hpop having no oil. I checked about a week ago and it was full. Where could this oil have drained to?


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1995f2507.3

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Have you checked the oil level in the pan?

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Oil level in the pan is at full, could this be the lpop? The truck does have 320,000 miles.


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79jasper

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From what I've seen, the lpop typically doesn't just fail.
Seen people talk about having cracked pickup tubes though.

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1995f2507.3

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Because it's now not even starting cold. It was driving great with lots of power on Saturday. So I'm not sure why it would just stop like it has.


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