IPR Replacement - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 29 (permalink) Old 07-08-2017, 09:24 PM Thread Starter
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IPR Replacement

Soon I'll be trying to tackle the replacement of my IPR. I've heard that it can kind of be a pain. My truck is a 95 and I have heard removing the fuel bowl makes the job way easier. I'd rather only remove what is necessary. Unless the process of removing fuel bowl is simple, I'd rather not pull it. How hard is the process of removing the IPR with the fuel bowl in? And if pulling the fuel bowl would be worth the time, what's the simplest way of pulling the fuel bowl?
Any help is appreciated.
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post #2 of 29 (permalink) Old 07-08-2017, 09:55 PM
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Re: IPR Replacement

Pull the fuel bowl.
SD aren't as bad because the bowl sits more forward.
I like to suck all the oil out of the hoop first.
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post #3 of 29 (permalink) Old 07-09-2017, 01:50 AM Thread Starter
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Re: IPR Replacement

I want to say my problem is the IPR sensor. It's idle is good, but it dies during deceleration sometimes. Other times it sounds like it is stuttering at around 700rpm before settling out at idle when coasting to a stop. I don't know if this would also be caused by the ICP. I'd rather it be that because that can be swapped out in no time almost. Both I've found are around the same price. I just don't want to spend the money on the wrong part...
The CEL has never come on during any of this though. Is there any way I can pin point the problem sensor?
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post #4 of 29 (permalink) Old 07-09-2017, 02:21 AM
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Re: IPR Replacement

You can unplug the icp sensor and see how it runs. Is there any oil inside the icp electrical connection? Oil inside the connection means the icp is bad.

You really need to monitor the ipr to know what its doing. You should be fine to change it with the fuel bowl still in. I was able to. The hard part is getting a socket or wrench to break it loose. Do you have a way to monitor the high pressure oil system?

You might try swapping out the cps. Its a common issue and not real expensive. Make sure to buy a good mortorcraft sensor.

Old Blue, 97' F350, CCLB, 7.3, Auto
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Turbo: Irate T4, S366
Oil: T500, Melling LPOP
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post #5 of 29 (permalink) Old 07-09-2017, 02:49 AM Thread Starter
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Re: IPR Replacement

Yes, I pulled the plug and there was oil in it. I did not run it with it unplugged though. I don't have any way to really monitor the IPR. Ive tossed around the idea of getting an edge insight. But I used to have a CTS2 and wasn't impressed. Plus I already have 3 pillar gauges and don't want the clutter. I might get a blue tooth thing for my phone.
But I'm hopping that just changing the CPS will do the job. The motor has 237k. All stock besides new injectors, exhaust, ts6 and gauges.
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post #6 of 29 (permalink) Old 07-09-2017, 02:54 AM
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Re: IPR Replacement

Like the earlier comment said, check the ICP plug for oil, or possibly a break in one of the leads at the plug. You might also check the IPR plug for the same symptoms. Another thing that can cause intermittent changes in RPM is the nut on the back of the IPR, they are prone to loosen and the valve acts erratically.
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post #7 of 29 (permalink) Old 07-09-2017, 03:02 AM
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Re: IPR Replacement

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Originally Posted by Zach Cooley View Post
Yes, I pulled the plug and there was oil in it. I did not run it with it unplugged though. I don't have any way to really monitor the IPR. Ive tossed around the idea of getting an edge insight. But I used to have a CTS2 and wasn't impressed. Plus I already have 3 pillar gauges and don't want the clutter. I might get a blue tooth thing for my phone.
But I'm hopping that just changing the CPS will do the job. The motor has 237k. All stock besides new injectors, exhaust, ts6 and gauges.
i always carry a spare CPS sensor with me. But if you have oil in your ICP Sensor it needs to be changed it is bad and you may want to change the connector while your at it the oil wicks up the wires. You should get some thing to be able to monitor your vitals it will help alot. If your IPR is running high at idle then it would show it.


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post #8 of 29 (permalink) Old 07-09-2017, 05:22 AM Thread Starter
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Re: IPR Replacement

I just ordered one. The connector looked good. All the wires look good and no oil on the out side or anything. But I will keep my eye on it. I also ordered a blue tooth adapter to the OBD2 port. Then got the Torque App. Didn't cost much and I thought what the hell. I didn't check my IPR connector because being out side when its 115 degree's sucks. I will tomorrow though.
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post #9 of 29 (permalink) Old 07-09-2017, 03:13 PM
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Re: IPR Replacement

Unplug the icp sensor and take it for a ride. See if your still having problems. It will not run perfect without the sensor but it shouldn't stumble or die like you described.

Old Blue, 97' F350, CCLB, 7.3, Auto
Air: SD IC, 3" Plenums
Fuel: E- Fuel, 160/30 Injectors
Turbo: Irate T4, S366
Oil: T500, Melling LPOP
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post #10 of 29 (permalink) Old 07-09-2017, 07:44 PM
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Re: IPR Replacement

I just did mine yesterday on a 94. It's a pain to do. If you can find a 12 point 1 1/8 socket it would work better than the 6 point that I used yesterday. I cut mine off at about 1.5 inches and then welded a handle on it made out of round stock. Handle was welded onto the side btw. Full socket would no way fit over the end of the IPR because of the hard lines were in the way. I ended up removing the fuel pressure housing thats on the side of the fuel bowl. Just couldn't get my hands anywhere close to the sensor.
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