2005 6.0 “stutter”
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4wd High
Joined: Dec 2022
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2005 6.0 “stutter”
Too say the least I’m stumped. I have a 2005 F250 6.0 with 170k, lately it’s inherited a some what of a “stutter”. It ran flawlessly, but recently, directly after an oil change this “stutter” came on. Once it begins to warm up it runs a little better but still not like it used to. My icp duty cycle and injection pressure were reading lower than normal, I replaced both Ipr and icp with motorcraft parts. The Ipr screen had one pin hole tear and a few flakes of metal. After replacing both the issue still stands. Next on the agenda is to check both fuel and oil pressure to try to rule out either hpop or fuel pump. The ficm, is getting 48v at main, and 13.5v at internal. Has anyone else run into a similar problem? Any input would be greatly appreciated
thank you.
thank you.
Fleet Owner
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Probably not what you want to hear, but you need to get ForScan or ForScan Light as a scan tool (downloads), and the appropriate OBDII adapter for your device. The SCT absolutely will not thoroughly pull codes. ForScan will.
Also, you may not actually be getting actual OEM parts. I am skeptical of the parts from the big chain auto parts stores.
Also, you may not actually be getting actual OEM parts. I am skeptical of the parts from the big chain auto parts stores.
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4wd High
Joined: Dec 2022
Posts: 9
Likes: 2
Probably not what you want to hear, but you need to get ForScan or ForScan Light as a scan tool (downloads), and the appropriate OBDII adapter for your device. The SCT absolutely will not thoroughly pull codes. ForScan will.
Also, you may not actually be getting actual OEM parts. I am skeptical of the parts from the big chain auto parts stores.
Also, you may not actually be getting actual OEM parts. I am skeptical of the parts from the big chain auto parts stores.
Both parts can in motorcraft packages so I didn’t second guess it. The first IPR valve I tried was from GB remanufacturing, I went the cheaper route due to budgeting reasons but it was a dud. So I choked it up and went with their motorcraft option.
Fleet Owner
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Lots of threads on counterfeit parts and packaging. Seen people get "bit" too many times.
The SCT is known for not reading EBP values correctly, but what are your EBP, MAP, and Baro readings at KOEO?
Also, you might try running with your EBP sensor unplugged.
People can get by with only "monitors" when things are running well. Not so much when problems pop up.
EDIT - I would also try running w/ the ICP unplugged for a while.
The SCT is known for not reading EBP values correctly, but what are your EBP, MAP, and Baro readings at KOEO?
Also, you might try running with your EBP sensor unplugged.
People can get by with only "monitors" when things are running well. Not so much when problems pop up.
EDIT - I would also try running w/ the ICP unplugged for a while.
Thread Starter
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4wd High
Joined: Dec 2022
Posts: 9
Likes: 2
Lots of threads on counterfeit parts and packaging. Seen people get "bit" too many times.
The SCT is known for not reading EBP values correctly, but what are your EBP, MAP, and Baro readings at KOEO?
Also, you might try running with your EBP sensor unplugged.
People can get by with only "monitors" when things are running well. Not so much when problems pop up.
EDIT - I would also try running w/ the ICP unplugged for a while.
The SCT is known for not reading EBP values correctly, but what are your EBP, MAP, and Baro readings at KOEO?
Also, you might try running with your EBP sensor unplugged.
People can get by with only "monitors" when things are running well. Not so much when problems pop up.
EDIT - I would also try running w/ the ICP unplugged for a while.
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4wd High
Joined: Dec 2022
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At idle MAP-14.24 psi, EBP- 60.41 psi, BARO- 13.93 psi
also I unplugged the EBP and ICP and went around the block and it’s still there. Would you suggest one at a time?
also I unplugged the EBP and ICP and went around the block and it’s still there. Would you suggest one at a time?
Last edited by Ethan_Hohn; Nov 14, 2023 at 02:22 PM.
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Fleet Owner
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That EBP is way high for idle, but again - SCT is known to report wrong values. At idle, the EBP should only be a few psi above MAP and Baro.
I asked for KOEO though: "Key-On-engine-Off"
Probably don't need to unplug them one at a time.
Inspect MAP sensor hose for leaks or holes or tears or plugging. Make sure the nipple on the intake manifold that the MAP sensor hose attaches to is clear (not plugged).
I asked for KOEO though: "Key-On-engine-Off"
Probably don't need to unplug them one at a time.
Inspect MAP sensor hose for leaks or holes or tears or plugging. Make sure the nipple on the intake manifold that the MAP sensor hose attaches to is clear (not plugged).
Thread Starter
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4wd High
Joined: Dec 2022
Posts: 9
Likes: 2
That EBP is way high for idle, but again - SCT is known to report wrong values. At idle, the EBP should only be a few psi above MAP and Baro.
I asked for KOEO though: "Key-On-engine-Off"
Probably don't need to unplug them one at a time.
Inspect MAP sensor hose for leaks or holes or tears or plugging. Make sure the nipple on the intake manifold that the MAP sensor hose attaches to is clear (not plugged).
I asked for KOEO though: "Key-On-engine-Off"
Probably don't need to unplug them one at a time.
Inspect MAP sensor hose for leaks or holes or tears or plugging. Make sure the nipple on the intake manifold that the MAP sensor hose attaches to is clear (not plugged).
I’ll inspect the MAP later tonight and will have to get back to you.
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4wd High
Joined: Dec 2022
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So I got an icp low circuit along with a IAT high input. The map sensor has some oil residue on the engine side of the tube, but sensor side and connectors look fine.
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