Slight Jerking/Studder becoming noticable
Posting Guru
Joined: Sep 2009
Posts: 1,441
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Yeah, just replace your ICP it's up on your passenger side valve cover towards the front of the engine and should cost about $60 with pigtails (wires). I got mine on Ebay and it solved the problem instantly one of the best things I did because that slight jerking was driving me nuts. You only need the pigtails if the wiring it shot/oily, so if your wires look good just get the sensor otherwise the wires cost more and if it doesn't end up being your ICP at least this will knock one minor, easy to replace and cheap thing off the list of possibilities.
Here's one for $20 http://www.ebay.com/itm/Ford-powerst...item415f75b5be (looks like it'll go higher though)
Another for buy it now price of $55 http://www.ebay.com/itm/ICP-SENSOR-D...item4842be819b
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Junior User
Joined: May 2006
Posts: 75
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Yeah, just replace your ICP it's up on your passenger side valve cover towards the front of the engine and should cost about $60 with pigtails (wires). I got mine on Ebay and it solved the problem instantly one of the best things I did because that slight jerking was driving me nuts. You only need the pigtails if the wiring it shot/oily, so if your wires look good just get the sensor otherwise the wires cost more and if it doesn't end up being your ICP at least this will knock one minor, easy to replace and cheap thing off the list of possibilities.
Here's one for $20 Ford powerstroke diesel 6.0 liter ICP sensor 2005-2008 | eBay (looks like it'll go higher though)
Another for buy it now price of $55 ICP SENSOR DIESEL 04-07 FORD F250 DIESEL 6.0 L ICP SENSOR POWERSTROKE | eBay
Here's one for $20 Ford powerstroke diesel 6.0 liter ICP sensor 2005-2008 | eBay (looks like it'll go higher though)
Another for buy it now price of $55 ICP SENSOR DIESEL 04-07 FORD F250 DIESEL 6.0 L ICP SENSOR POWERSTROKE | eBay
Is there any way to test this ICP? What does the ICP do?
Found this image - For a 04.5 and newer
Elder User
Joined: Aug 2010
Posts: 675
Likes: 1
From: NV
Look in the Tech Folder for "no start", there are ICP test procedures there.
ICP (INJECTOR CONTROL PRESSURE SENSOR)
ICP (INJECTOR CONTROL PRESSURE SENSOR)
Logistics Pro
Joined: Mar 2007
Posts: 4,604
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From: Claremore, OK
Logistics Pro
Joined: Mar 2007
Posts: 4,604
Likes: 4
From: Claremore, OK
It's in the tech folder under "Trouble shooting a no start condition". Here is the link:
https://www.ford-trucks.com/forums/8...ml#post7807959
About 1/2 way down the page you see "TROUBLESHOOT THE HPO PRESSURE SYSTEM" Right below that there is 4 billets for suggestions on things to check/try to trouble shoot the ICP.
https://www.ford-trucks.com/forums/8...ml#post7807959
About 1/2 way down the page you see "TROUBLESHOOT THE HPO PRESSURE SYSTEM" Right below that there is 4 billets for suggestions on things to check/try to trouble shoot the ICP.
Posting Guru
Joined: Sep 2009
Posts: 1,441
Likes: 5
It's in the tech folder under "Trouble shooting a no start condition". Here is the link:
https://www.ford-trucks.com/forums/8...ml#post7807959
About 1/2 way down the page you see "TROUBLESHOOT THE HPO PRESSURE SYSTEM" Right below that there is 4 billets for suggestions on things to check/try to trouble shoot the ICP.
https://www.ford-trucks.com/forums/8...ml#post7807959
About 1/2 way down the page you see "TROUBLESHOOT THE HPO PRESSURE SYSTEM" Right below that there is 4 billets for suggestions on things to check/try to trouble shoot the ICP.
To test the ICP I would guess you would need to pull the sensor and apply pressure to it while measuring resistance across the leads. However, applying pressure is a major problem and figuring out what the Ω values are would be another problem but not as hard as applying constant but variable pressures.
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Junior User
Joined: May 2006
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I was told by A LOcal guy that I should check the IPR also and both the IPR AND ICP should be changed every 100,000 miles.
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Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
I picked this up on another post somewhere:
Below is the voltage levels from the ICP service CD. If you see your ICP voltage jumping around significantly at steady RPMs, your ICP sensor will need to be replaced.
Press Press Sensor
(PSI) (MPA) Voltage
0 0 .02v
200 1.5 .4v
400 3 0.73v
600 4 .96v
800 5.5 1.2v
1000 7 1.4v
1200 8 1.6v
1400 9.7 1.9v
1600 11 2.1v
1800 12.4 2.3v
2000 13.8 2.6v
2200 15.2 2.8v
2400 16.5 3v
2600 18 3.3v
2800 19.3 3.5v
3000 20.6 3.8v
If I remember right the ICP has 3 wires. One is 5v vRef and you read the voltage across the other two. You do have to skin them back a little to make the connection with the meter leads. I haven't done this myself yet, just passing this on.
Below is the voltage levels from the ICP service CD. If you see your ICP voltage jumping around significantly at steady RPMs, your ICP sensor will need to be replaced.
Press Press Sensor
(PSI) (MPA) Voltage
0 0 .02v
200 1.5 .4v
400 3 0.73v
600 4 .96v
800 5.5 1.2v
1000 7 1.4v
1200 8 1.6v
1400 9.7 1.9v
1600 11 2.1v
1800 12.4 2.3v
2000 13.8 2.6v
2200 15.2 2.8v
2400 16.5 3v
2600 18 3.3v
2800 19.3 3.5v
3000 20.6 3.8v
If I remember right the ICP has 3 wires. One is 5v vRef and you read the voltage across the other two. You do have to skin them back a little to make the connection with the meter leads. I haven't done this myself yet, just passing this on.
Posting Guru
Joined: Sep 2009
Posts: 1,441
Likes: 5
I picked this up on another post somewhere:
Below is the voltage levels from the ICP service CD. If you see your ICP voltage jumping around significantly at steady RPMs, your ICP sensor will need to be replaced.
Press Press Sensor
(PSI) (MPA) Voltage
0 0 .02v
200 1.5 .4v
400 3 0.73v
600 4 .96v
800 5.5 1.2v
1000 7 1.4v
1200 8 1.6v
1400 9.7 1.9v
1600 11 2.1v
1800 12.4 2.3v
2000 13.8 2.6v
2200 15.2 2.8v
2400 16.5 3v
2600 18 3.3v
2800 19.3 3.5v
3000 20.6 3.8v
If I remember right the ICP has 3 wires. One is 5v vRef and you read the voltage across the other two. You do have to skin them back a little to make the connection with the meter leads. I haven't done this myself yet, just passing this on.
Below is the voltage levels from the ICP service CD. If you see your ICP voltage jumping around significantly at steady RPMs, your ICP sensor will need to be replaced.
Press Press Sensor
(PSI) (MPA) Voltage
0 0 .02v
200 1.5 .4v
400 3 0.73v
600 4 .96v
800 5.5 1.2v
1000 7 1.4v
1200 8 1.6v
1400 9.7 1.9v
1600 11 2.1v
1800 12.4 2.3v
2000 13.8 2.6v
2200 15.2 2.8v
2400 16.5 3v
2600 18 3.3v
2800 19.3 3.5v
3000 20.6 3.8v
If I remember right the ICP has 3 wires. One is 5v vRef and you read the voltage across the other two. You do have to skin them back a little to make the connection with the meter leads. I haven't done this myself yet, just passing this on.
That's good info! At idle I see ICP at ~630-660 which would give me a ~1.0-1.3V value. However, if his problem is anything like my ICP problem than idle was always smooth (lower pres) and didn't get 'jerky' until higher speeds (4th gear, 2000+C-RPMs, higher pres) so unless you find somebody willing to ride around in your engine bay with a multimeter at 55mph.... Without a service/command tool I guess one could try holding RPMs constant in one's driveway but the slight variation in foot pressure would be enough to falsify the V readings. I guess my point is that outside of a service tool that can force your engine to hold a constant RPM there's really no practical way to test the ICP and going to the dealer to access such a tool would cost way more than the parts and three minutes in your driveway.
Side note: generally speaking expendable parts (ICP sensors) aren't worth testing.
Elder User
Joined: Aug 2010
Posts: 675
Likes: 1
From: NV
The first test I found was:
16. Inspect the ICP sensor and harness. Is it oil soaked? Disconnect the ICP and try again. The PCM will establish a default control scheme that would allow the truck to start if the problem were the ICP sensor. Afterwards, make sure the harness is re-installed securely. Also, check ICP circuit fuse.
Rusty Axlerod has posted the expected voltages in an earlier post.
16. Inspect the ICP sensor and harness. Is it oil soaked? Disconnect the ICP and try again. The PCM will establish a default control scheme that would allow the truck to start if the problem were the ICP sensor. Afterwards, make sure the harness is re-installed securely. Also, check ICP circuit fuse.
Rusty Axlerod has posted the expected voltages in an earlier post.
Posting Guru
Joined: Sep 2009
Posts: 1,441
Likes: 5
The first test I found was:
16. Inspect the ICP sensor and harness. Is it oil soaked? Disconnect the ICP and try again. The PCM will establish a default control scheme that would allow the truck to start if the problem were the ICP sensor. Afterwards, make sure the harness is re-installed securely. Also, check ICP circuit fuse.
Rusty Axlerod has posted the expected voltages in an earlier post.
16. Inspect the ICP sensor and harness. Is it oil soaked? Disconnect the ICP and try again. The PCM will establish a default control scheme that would allow the truck to start if the problem were the ICP sensor. Afterwards, make sure the harness is re-installed securely. Also, check ICP circuit fuse.
Rusty Axlerod has posted the expected voltages in an earlier post.
Ummm.....
That troubleshooting is for a way different problem.
