Another OBS 1997 7.3 dying abruptly. - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 8 (permalink) Old 04-23-2019, 08:24 PM Thread Starter
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Another OBS 1997 7.3 dying abruptly.

This last weekend I drove the truck 1000 miles round trip towing without a single issue. Yesterday I drove it to and from school no issues. This morning I started it to go to work, it started like normal and idled nice for about 5 seconds and shut off on its own like I turned the key to kill it. No restart. Short on time I caught a ride to work.

Iím assuming the first place to look is the CPS, this is the very first time this truck has had any running issues and Iíve driven it 45,000 miles since buying. Any tips on what I should look at if the cps doesnt fix the issue? Its my daily!

***Update
Had someone go try and start it to look at the tach while cranking and it fired up, but she turned it right off and then it wouldnít restart. She said the fuel filter and engine temp lights came on by the Wait to start light. Strange! *****



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post #2 of 8 (permalink) Old 04-24-2019, 08:24 PM Thread Starter
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Re: Another OBS 1997 7.3 dying abruptly.

Changed the CPS out with a new Unit, no dice it does the same thing. Not smoking at all, tried unplugging the sensor on the driver side head (IPR? I think) also nothing. Fuel bowl is filled with fuel, filter looks alright.

#### sucks! Day two without a daily! Going to have to call the shop if I cant figure it out tonight.


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post #3 of 8 (permalink) Old 04-24-2019, 10:52 PM
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Re: Another OBS 1997 7.3 dying abruptly.

Is your wait to start light coming on

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01 Excursion Limited 4wd psd (the wifes ride)
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post #4 of 8 (permalink) Old 04-24-2019, 11:29 PM Thread Starter
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Re: Another OBS 1997 7.3 dying abruptly.

Yes, everything is acting normal other than the engine not running.


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post #5 of 8 (permalink) Old 04-24-2019, 11:29 PM
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Re: Another OBS 1997 7.3 dying abruptly.

Is the hpop reservoir full

96 F350 rclb drw 2wd psd (built not bought)
01 Excursion Limited 4wd psd (the wifes ride)
02 F350 cclb drw 4wd psd (the land yacht)

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post #6 of 8 (permalink) Old 04-25-2019, 02:42 AM
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Re: Another OBS 1997 7.3 dying abruptly.

Do you have the ability to get the truck scanned for codes ?


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post #7 of 8 (permalink) Old 04-25-2019, 02:43 AM Thread Starter
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Re: Another OBS 1997 7.3 dying abruptly.

Hpop was full when I looked, the batteries died from messing with it and I just canít waste anymore time on the thing. Itís at a shop now Ill have him diagnose it and Ill fix whatever is wrong. Will keep posted as this issue seems broad for a variety of different people.


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post #8 of 8 (permalink) Old 05-16-2019, 03:24 PM Thread Starter
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Re: Another OBS 1997 7.3 dying abruptly.

It was the Injection pressure regulator. Slammed in a new one and weíre good to go.


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