97 PSD Crank/No Start - Stumped - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 20 (permalink) Old 09-12-2018, 12:23 AM Thread Starter
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97 PSD Crank/No Start - Stumped

My 1997 F350 PSD died on the road a few months ago. Iíve had a lot of problems troubleshooting it, and Iím stumped. Iím hoping someone here has run into this, and can help me out. I really need to get it moving again before snow flies. No research Iíve done has helped me so far.
Like I said, it died on the road. I got a code reader and did an injector buzz test (which seemed fine), and I also pulled these codes:

P1280 - Injection Control Pressure Out Of Range Low
P0603 - Internal Control Module Keep Alive Memory (KAM) Error
P0344 - Camshaft Position Sensor A Circuit Intermittent (Bank 1 or Single Sensor)
P1293 - Injector High Side Open - Bank 1

Itís a crank/no start right now. Iíve tried three CPS replacements. Iíve replaced the oil pressure sender, the fuel filter, and the HPOP Injection Pressure Regulator Valve. The HPOP and regular oil pump seem to be working, but Iím not sure how to test HPOP output pressure. Iíve disconnected the Injection Control Pressure Sensor when cranking with no change. The fuel pump is working. I also changed the oil and rebuilt the fuel bowl, just in case.

Iím hoping itís not the IDM or PCM, but Iím starting to feel like it may be, but Iím obviously not positive. Is there a way to test those specifically?

Thatís what Iíve done so far, and I think I hit everything. Iím sorry for the long post. Any help anyone could give would be great. I really appreciate it.
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post #2 of 20 (permalink) Old 09-12-2018, 12:59 AM
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97 PSD Crank/No Start - Stumped

Check for broken wires in the engine harness . Check the wires that come from the cam sensor to the main harness .
Look for areas that appear to be rubbed from vibrations.
Do you have a spare IDM you can experiment with ?
Do you have access to a scan tool that will show live data ?


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post #3 of 20 (permalink) Old 09-12-2018, 02:03 AM
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Re: 97 PSD Crank/No Start - Stumped

Clear the codes, which ones come back?
.
What is your hpop pressure during cranking?

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 #4 of 20 (permalink) Old 09-17-2018, 10:48 PM Thread Starter
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Re: 97 PSD Crank/No Start - Stumped

Quote:
Originally Posted by heavydoc View Post
Clear the codes, which ones come back?
.
What is your hpop pressure during cranking?
HPOP Pressure was between 3000-3600 while cranking
IPR was between 40%-55%
RPM was between 120-160

I cleared the codes, and did 6 rounds of cranking for 15 seconds. No codes came back after that.
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post #5 of 20 (permalink) Old 09-17-2018, 10:51 PM Thread Starter
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Re: 97 PSD Crank/No Start - Stumped

Quote:
Originally Posted by longjonsilver View Post
Check for broken wires in the engine harness . Check the wires that come from the cam sensor to the main harness .
Look for areas that appear to be rubbed from vibrations.
Do you have a spare IDM you can experiment with ?
Do you have access to a scan tool that will show live data ?


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I didn't see any broken wires, or areas that look like the could have rubbed or are shorting. I don't have a spare IDM available. I do have a bluetooth scanner and a tablet to use. I just posted to another response with some of the data I got. Mondays are really the only day I can work on the truck, so it might take some time for me to respond to all this advice. Thank you guys

--Tom
1997 F350 7.3 Crew Cab/Long Bed/SRW
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post #6 of 20 (permalink) Old 09-17-2018, 11:04 PM
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Re: 97 PSD Crank/No Start - Stumped

Quote:
Originally Posted by TBUSMC61 View Post
HPOP Pressure was between 3000-3600 while cranking
IPR was between 40%-55%
RPM was between 120-160

I cleared the codes, and did 6 rounds of cranking for 15 seconds. No codes came back after that.
3000-3600 is very high for cranking pressure, it should be around 500ish but nothing below 450. I think I would investigate why it is that high.

Maybe put in a guage and test, unless you have the pump deadheaded you shouldn't be seeing over maybe 650ish during cranking.

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 #7 of 20 (permalink) Old 09-18-2018, 02:10 AM
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Re: 97 PSD Crank/No Start - Stumped

Maybe pull the valve covers and disable the IDM and crank the engine and look for high pressure oil leaks from possible bad injector o rings or a bad injector ..


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post #8 of 20 (permalink) Old 09-18-2018, 04:42 AM
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Re: 97 PSD Crank/No Start - Stumped

Quote:
Originally Posted by TBUSMC61 View Post
HPOP Pressure was between 3000-3600 while cranking
IPR was between 40%-55%
RPM was between 120-160
I cleared the codes, and did 6 rounds of cranking for 15 seconds. No codes came back after that.
Quote:
Originally Posted by heavydoc View Post
3000-3600 is very high for cranking pressure, it should be around 500ish but nothing below 450. I think I would investigate why it is that high.
Maybe put in a guage and test, unless you have the pump deadheaded you shouldn't be seeing over maybe 650ish during cranking.
I agree, 3000psi is VERY high for cranking. However, so is the 40-55% IPR duty cycle. If it's really commanding that high of IPR D-C, then maybe the pressure is correct, particularly if the injectors aren't firing (no HP oil consumption)... basically the pump IS dead-heading.



Quote:
Originally Posted by longjonsilver View Post
Maybe pull the valve covers and disable the IDM and crank the engine and look for high pressure oil leaks from possible bad injector o rings or a bad injector
This is usually a test done if the HPO pressure is excessively LOW (and duty cycle high) when cranking...

Al in SoCal
AFE Intake; Garrett 38R; Turbine Jacket; Banks IC, BanksBrake
Melling LPOP, External Oil Cooler & Filter System
Stealth 4-line Twin HPOP,
Swamps 160/30's, HVHF IDM; DP-Tuner F5
Full R-R Fuel System, Pre-& Post-pump filtration
Mishimoto Rad & Tank; 4" Exhaust, Twin Aussie Stacks
SouthBend D-D Clutch; ZF 6-spd, GearVendors O/U Drive
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post #9 of 20 (permalink) Old 09-18-2018, 04:57 AM
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Re: 97 PSD Crank/No Start - Stumped

Exactly, Iím not sure why the duty cycle is so high , Iím not sure the psi heís seeing is actual but could possibly be a symptom of a failed component.


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post #10 of 20 (permalink) Old 09-18-2018, 05:02 AM
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Re: 97 PSD Crank/No Start - Stumped

Quote:
Originally Posted by longjonsilver View Post
Exactly, Iím not sure why the duty cycle is so high , Iím not sure the psi heís seeing is actual but could possibly be a symptom of a failed component.
Agreed.
As you said, a [mechanical] gauge would be a good idea...

Al in SoCal
AFE Intake; Garrett 38R; Turbine Jacket; Banks IC, BanksBrake
Melling LPOP, External Oil Cooler & Filter System
Stealth 4-line Twin HPOP,
Swamps 160/30's, HVHF IDM; DP-Tuner F5
Full R-R Fuel System, Pre-& Post-pump filtration
Mishimoto Rad & Tank; 4" Exhaust, Twin Aussie Stacks
SouthBend D-D Clutch; ZF 6-spd, GearVendors O/U Drive
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