check engine OBD code PO401
Postmaster
Joined: Jan 2003
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From: Durham, NC
Yes, it's rectangular shaped, 2 rubber lines coming out of the bottom, and a 3-wire electrical plug on it. You didn't say what engine you have, but on a 3.0L, it's mounted on the upper intake....
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Sorry. 2000 3.0 flex fuel.
I found it between my two replies. Blew some carb cleaner through the tubes on the sensor and got some crud, including what looked like a hairball, to come back out at me.
I had to replace one of the rubber tubes a while back due to a hole and suspect that hair got sucked via the hole.
BTW, which one of rubber hoses goes where on the EGR tube?
Thanks
Bill
I found it between my two replies. Blew some carb cleaner through the tubes on the sensor and got some crud, including what looked like a hairball, to come back out at me.
I had to replace one of the rubber tubes a while back due to a hole and suspect that hair got sucked via the hole.
BTW, which one of rubber hoses goes where on the EGR tube?
Thanks
Bill
Post Fiend
Joined: Jan 2003
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From: Connecticut
Originally Posted by fosterwc
BTW, which one of rubber hoses goes where on the EGR tube?
Here is a summary of the Ford EGR/DPFE system that might help:
Ford DPFE/EGR System Summary
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They may have been. But I replaced them with hoses of the same diameter.
Your diagram helps greatly.
Thanks, to you and Bob
Your diagram helps greatly.
Thanks, to you and Bob
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As it turns out I had the hoses reversed. Maybe it will run a little better now. 
Thanks again,
Bill
Thanks again,
Bill
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Well, I cleaned everything, made sure the hoses were correct and the code came back. Replaced the DPFE and still got the code. Replaced the EGR valve and have not gotten any CEL...yet.
But, now I experience hesitation and stumbling on acceleration. When cruising with the throttle just cracked open the truck "bucks". Sounds like bad EGR valve. Any ideas?
Thanks
Bill
But, now I experience hesitation and stumbling on acceleration. When cruising with the throttle just cracked open the truck "bucks". Sounds like bad EGR valve. Any ideas?
Thanks
Bill
Postmaster
Joined: Jan 2003
Posts: 4,417
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From: Durham, NC
Originally Posted by fosterwc
Wow, never heard that before. So you're basically discharging all of the circuitry. Hmmm.
Thanks!
Thanks!