Hard starting help
Senior User
Joined: Sep 2009
Posts: 341
Likes: 0
Delay on oil pressure? What's your oil level? This is an IPR, LPOP, ICP sensor, or HPOP issue. Focusing on the oil will help to reduce a lot of other questions and guesses. You need 500 PSI ICP just to start. The fact that the truck is stubborn to start with the ICP unplugged almost eliminates the ICP sensor as a suspect. The LPOP shows up on the dash gauge. Low oil level or bad LPOP will give every symptom you descripe. Are there bubbles on the oil dipstick?
KOEO
ICP Volts @ .24
ICP DC @ 14.84
ICP Pressure @ 0
Battery Voltage at 11.2
KOER
ICP Volts @ .95 to 1.16
ICP DC @ 18.36
ICP Pressure @ 1060 starting, 740 running at idle
Battery at 11.4.....Raised rpm to 2100......Battery Charging at 11.6
Place load on system...Lights and AC at Max......Battery charging stayed at 11.6
I believe the Alternator is defective.....It's 6 months old and a China Reman.
with oil found in the ICP connector and the readings above should I go ahead and replace the ICP?
Jeff
Cargo Master
Joined: Oct 2007
Posts: 2,712
Likes: 107
From: BoCoMo
Injection Control Pressure Sensor 1999-2003 ICP Sensor
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
Hi Tugly....I used the AE to check ICP this morning. Here is the data:
KOEO
ICP Volts @ .24
ICP DC @ 14.84
ICP Pressure @ 0
Battery Voltage at 11.2
KOER
ICP Volts @ .95 to 1.16
ICP DC @ 18.36
ICP Pressure @ 1060 starting, 740 running at idle
Battery at 11.4.....Raised rpm to 2100......Battery Charging at 11.6
Place load on system...Lights and AC at Max......Battery charging stayed at 11.6
I believe the Alternator is defective.....It's 6 months old and a China Reman.
with oil found in the ICP connector and the readings above should I go ahead and replace the ICP?
Jeff
KOEO
ICP Volts @ .24
ICP DC @ 14.84
ICP Pressure @ 0
Battery Voltage at 11.2
KOER
ICP Volts @ .95 to 1.16
ICP DC @ 18.36
ICP Pressure @ 1060 starting, 740 running at idle
Battery at 11.4.....Raised rpm to 2100......Battery Charging at 11.6
Place load on system...Lights and AC at Max......Battery charging stayed at 11.6
I believe the Alternator is defective.....It's 6 months old and a China Reman.
with oil found in the ICP connector and the readings above should I go ahead and replace the ICP?
Jeff
If the ICP sensor is leaking oil, I've read countless threads where replacing it has helped running/starting. I'm curious of two things:
- What was the ICP DC when the ICP was 700? It should be roughly 14%.
- How long did you run with those voltages? Believe it or not... those voltages are normal for the first two minutes of running on a cold motor, because the glowplugs suck the juice way down. When the glowplugs are confirmed off, the running voltage should be 13.8 V to 14.2 V... or something needs to be fixed. Crappy cable connections, bum batteries, or a Chinese charger can trim the 'trons.
More Turbo
Joined: Nov 2012
Posts: 727
Likes: 1
From: Chariton, IA
If there is oil in the connector and oil coming through the ICP.... it is not going to fix it self and will cause more problems the longer you go with it. change it out.
Injection Control Pressure Sensor 1999-2003 ICP Sensor
Injection Control Pressure Sensor 1999-2003 ICP Sensor
Also the ses light with the ipr unpluged is normal. Think it's something like IPR circut low.
Thread Starter
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Cargo Master
Joined: Jul 2011
Posts: 2,655
Likes: 963
From: Walpole, MA
Delay on oil pressure? What's your oil level? This is an IPR, LPOP, ICP sensor, or HPOP issue. Focusing on the oil will help to reduce a lot of other questions and guesses. You need 500 PSI ICP just to start. The fact that the truck is stubborn to start with the ICP unplugged almost eliminates the ICP sensor as a suspect. The LPOP shows up on the dash gauge. Low oil level or bad LPOP will give every symptom you descripe. Are there bubbles on the oil dipstick?
Senior User
Joined: Sep 2009
Posts: 341
Likes: 0
If the ICP sensor is leaking oil, I've read countless threads where replacing it has helped running/starting. I'm curious of two things:
- What was the ICP DC when the ICP was 700? It should be roughly 14%.
- How long did you run with those voltages? Believe it or not... those voltages are normal for the first two minutes of running on a cold motor, because the glowplugs suck the juice way down. When the glowplugs are confirmed off, the running voltage should be 13.8 V to 14.2 V... or something needs to be fixed. Crappy cable connections, bum batteries, or a Chinese charger can trim the 'trons.
KOEO
ICP PSI @ 0
ICP Volts @ .2
ICP DC @ 14.84
KOER after 4 minutes
ICP PSI @ 568 to 580 Fluctuates
ICP Volts @ .86 to 1.05 Fluctuates
ICP DC @ 14.45 steady
Battery Voltage 14.2 after installing new alternator
jeff
UPDATE after 10 minutes of idle time:
ICP PSI @ 465 to 493
ICP Volts @ .72 to .85
ICP DC @ 10.94
Battery Volts 14.2
Last edited by koski19; Apr 18, 2013 at 01:09 PM. Reason: Update
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
The likliest suspects are now IPR, HPOP, or LPOP... or a substantial oil leak (internal or external). IPR is easiest/cheapest and they seem to be going out right about now, so it can't hurt to pull it and clean it out... looking for oil in the valley while you're there. If you clean it and things get better OR worse, (after air is purged), I think we found our culprit. A lot of HPOPs are fading out right now as well... but I suggest we just do the peepee dance on that until the IPR evaluated.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
Re-ran the test, here are the results:
KOEO
ICP PSI @ 0
ICP Volts @ .2
ICP DC @ 14.84
KOER after 4 minutes
ICP PSI @ 568 to 580 Fluctuates
ICP Volts @ .86 to 1.05 Fluctuates
ICP DC @ 14.45 steady
Battery Voltage 14.2 after installing new alternator
jeff
UPDATE after 10 minutes of idle time:
ICP PSI @ 465 to 493
ICP Volts @ .72 to .85
ICP DC @ 10.94
Battery Volts 14.2
KOEO
ICP PSI @ 0
ICP Volts @ .2
ICP DC @ 14.84
KOER after 4 minutes
ICP PSI @ 568 to 580 Fluctuates
ICP Volts @ .86 to 1.05 Fluctuates
ICP DC @ 14.45 steady
Battery Voltage 14.2 after installing new alternator
jeff
UPDATE after 10 minutes of idle time:
ICP PSI @ 465 to 493
ICP Volts @ .72 to .85
ICP DC @ 10.94
Battery Volts 14.2
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Thread Starter
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Cargo Master
Joined: Jul 2011
Posts: 2,655
Likes: 963
From: Walpole, MA
The likliest suspects are now IPR, HPOP, or LPOP... or a substantial oil leak (internal or external). IPR is easiest/cheapest and they seem to be going out right about now, so it can't hurt to pull it and clean it out... looking for oil in the valley while you're there. If you clean it and things get better OR worse, (after air is purged), I think we found our culprit. A lot of HPOPs are fading out right now as well... but I suggest we just do the peepee dance on that until the IPR evaluated.
Thanks for all the help!
Senior User
Joined: Sep 2009
Posts: 341
Likes: 0
Jeff
More Turbo
Joined: Nov 2012
Posts: 727
Likes: 1
From: Chariton, IA
If there is oil on the end of the plug when you un-plug it, the ICP is going out.
Cargo Master
Joined: Oct 2007
Posts: 2,712
Likes: 107
From: BoCoMo
http://www.motorcraftservice.com/vdi...iagnostics.pdf
Senior User
Joined: Sep 2009
Posts: 341
Likes: 0
Page labeled #2... point #2 might interest you.
http://www.motorcraftservice.com/vdi...iagnostics.pdf
http://www.motorcraftservice.com/vdi...iagnostics.pdf
The truck I was working on today...seems to be fixed and ready to continue to the 200,000 mark!
Jeff
Thread Starter
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Cargo Master
Joined: Jul 2011
Posts: 2,655
Likes: 963
From: Walpole, MA
Ok so my o-rings just came in from Diesel O-rings (got to love three day shipping from Colorado to Mass btw), so I am planning on pulling and cleaning the IPR since my HPOP res has been low or empty the past two days.
Question, what is the poster doing in the IPR cleaning doing at the 55 second mark?
Question, what is the poster doing in the IPR cleaning doing at the 55 second mark?