sticking IPR?

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Oct 5, 2021 | 07:55 AM

oldbird1965

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Fleet Owner

Joined: Aug 2004

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From: AZ

sticking IPR?

At very light throttle the OX is surging then backing off to normal. This is only happening at 10-15 mph driving. If I take it out on the open road and give some WOT then it acts normal for a few days. I'm thinking sticking IPR or TPS acting up?

Oct 5, 2021 | 10:03 AM

427 fordman

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Joined: Feb 2009

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From: Plankinton, SD

Hey Glenn. Have you watched your duty cycle and pressure when it happens?

Oct 5, 2021 | 12:43 PM

96 OBS

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Joined: Oct 2019

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From: Fowler Colorado

I’d agree with checking duty cycle and ICP pressure first. But I bet you’re right with the ipr sticking

Oct 5, 2021 | 05:29 PM

Bitterroot Diesel

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Joined: Sep 2020

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From: Florence, MT

I've not had great luck rebuilding the IPR.

Oct 5, 2021 | 08:32 PM

oldbird1965

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Joined: Aug 2004

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From: AZ

Quote:

Originally Posted by 427 fordman

Hey Glenn. Have you watched your duty cycle and pressure when it happens?

Hi Darin, no I haven't looked at that but I will. Ran it all day hard and it ran good. Thanks

Quote:

Originally Posted by 96 OBS

I’d agree with checking duty cycle and ICP pressure first. But I bet you’re right with the ipr sticking

Thanks man, I had one stick closed on me once on a bridge. I'm just getting to the point that I worry about everything that might strand me.

Quote:

Originally Posted by Bitterroot Diesel

I've not had great luck rebuilding the IPR.

That's what I have learned, to tight of tolerances. I think this winter I'll replace it and a few other sensors.

Oct 5, 2021 | 08:42 PM

96 OBS

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From: Fowler Colorado

Me too man mine left me right on the side of the highway. No bueno. Luckily I had Manuel transmission to force the motor back to life. Back when she had cooked batteries

Oct 5, 2021 | 10:13 PM

oldbird1965

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Joined: Aug 2004

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From: AZ

I got lucky that day by having just enough momentum to just barely roll off the bridge and there was a spot to pull off. Also luck had it I had a spare and got going again!

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Oct 6, 2021 | 07:43 AM

Sous

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Joined: May 2014

Posts: 27,344

Likes: 5,941

From: Lake Hartwell, GA

If you end up replacing the IPR, FordTruckNoob on the SD sub-forum linked a DT466 IPR as a possible alternative to the standard IPR. As you can see, there is not tin nut on the IPR. Just another option to consider.

Information source: https://www.ford-trucks.com/forums/1...l#post20086619