IPR Question
Tuned
Joined: Oct 2020
Posts: 418
Likes: 178
From: Piedmont of N.C.
The connector, no. But if the nut is loose on the coil that fits over the stem, you might get some movement of the whole assembly.
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More Turbo
Joined: Sep 2016
Posts: 580
Likes: 4
From: Michigan
It appears rhat the black 90° connector has movement back and forth but nothing else moves. I also found oil inside the connector and a sticky seal. I'm not sure how oil would get in there because it's not the ICP sensor.
Tuned
Joined: Oct 2020
Posts: 418
Likes: 178
From: Piedmont of N.C.
These engines have plenty of places to leak oil and when it does leak, anything rubber will only last so long. That connector is in the proximity of a lot of oil being moved under high pressure, so a tiny leak over time could possibly cause what you are seeing. Oil can wick right into places you would think it should not, going right on up through the harness to other locations you would think was impossible. The type seal you are referring to was designed more for guarding against moisture and dust intrusion, not oil. Sounds like the seal has broken down allowing the connector bodies to wiggle around.
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More Turbo
Joined: Sep 2016
Posts: 580
Likes: 4
From: Michigan
These engines have plenty of places to leak oil and when it does leak, anything rubber will only last so long. That connector is in the proximity of a lot of oil being moved under high pressure, so a tiny leak over time could possibly cause what you are seeing. Oil can wick right into places you would think it should not, going right on up through the harness to other locations you would think was impossible. The type seal you are referring to was designed more for guarding against moisture and dust intrusion, not oil. Sounds like the seal has broken down allowing the connector bodies to wiggle around.
Laughing Gas
Joined: Aug 2023
Posts: 971
Likes: 359
From: Glendale, AZ
Your vid wanted me to download a codec, so I didn't watch it. But recorded my own a while back as I was working through my own truck thread.
That's what mine did. I replaced mine with a new one that did not do that. I do not think it affected it's ability to work.
That's what mine did. I replaced mine with a new one that did not do that. I do not think it affected it's ability to work.
Tuned
Joined: Oct 2020
Posts: 418
Likes: 178
From: Piedmont of N.C.
The only reason I found this is because it's had a weird idle problem the last while. Today it acted up really bad and started running rough. I swapped the fuel pump after getting a code P1211- ICP out of range. I also cleaned out my pre pump strainer it had some crud in it. Code cleared, truck still runs rough but no codes. When the engine cools down the fuel knock on my passenger bank almost disappears completely and it starts perfectly cold or warm. So I don't know if it's ICP or IPR or an injector issue. Fuel pressure pre and post fuel bowl stays right at 59-60 psi under all conditions. There is a little film of oil in the ICP plug. I just don't want to buy $500 in sensors and still not fix my problem.
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More Turbo
Joined: Sep 2016
Posts: 580
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From: Michigan
It's been doing this for some time, a few months at least. Everytime I get the laptop hooked up i can't make it replicate the knock and shaky idle. Today it just got worse which prompted me to swap the fuel pump because the previous one started running louder and the truck behaved like it was starving for fuel.
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From: WV
Originally Posted by MTP55
It's been doing this for some time, a few months at least. Everytime I get the laptop hooked up i can't make it replicate the knock and shaky idle. Today it just got worse which prompted me to swap the fuel pump because the previous one started running louder and the truck behaved like it was starving for fuel.
Random knock? If this is Fuel knock then I’d be suspicious of air in the system. Where is your “pre-pump” filter that was cleaned? Is this the in tank screens?
You can check for air at the fuel bowl drain. Run a hose and pump some into a container.
Regarding the IPR rubber seal, Riffraff and Dieselorings have just the seal. Riffraff’s shipping was 3x the cost of the (cheap) part so I ended up just buying a $3 connector pigtail off of eBay and stealing the seal. Seems like the part was common with 6.0 VGT connector which brought up some cheaper options. But don’t take my word for it, do your own check on that.
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More Turbo
Joined: Sep 2016
Posts: 580
Likes: 4
From: Michigan
I believe the movement on the IPR connector is normal.
Random knock? If this is Fuel knock then I’d be suspicious of air in the system. Where is your “pre-pump” filter that was cleaned? Is this the in tank screens?
You can check for air at the fuel bowl drain. Run a hose and pump some into a container.
Regarding the IPR rubber seal, Riffraff and Dieselorings have just the seal. Riffraff’s shipping was 3x the cost of the (cheap) part so I ended up just buying a $3 connector pigtail off of eBay and stealing the seal. Seems like the part was common with 6.0 VGT connector which brought up some cheaper options. But don’t take my word for it, do your own check on that.
Random knock? If this is Fuel knock then I’d be suspicious of air in the system. Where is your “pre-pump” filter that was cleaned? Is this the in tank screens?
You can check for air at the fuel bowl drain. Run a hose and pump some into a container.
Regarding the IPR rubber seal, Riffraff and Dieselorings have just the seal. Riffraff’s shipping was 3x the cost of the (cheap) part so I ended up just buying a $3 connector pigtail off of eBay and stealing the seal. Seems like the part was common with 6.0 VGT connector which brought up some cheaper options. But don’t take my word for it, do your own check on that.
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