low pressure?
low pressure?
Thread Starter
|
Junior User
Joined: Jan 2007
Posts: 50
Likes: 0
Not sure what we are reading at now, I have to check the scanner again. I just wanted to know before I did what normal reading is. I think the hpop is weak. Got a 1211 code. but we rebuilt the IPR and just recently swapped out th hpop. (it was a used one). But before we put it in we couldn't start at all. Since the "new" hpop it has been running fine until a few days ago when going uphill the check engine light came on and then it stalled. Really hard to restart after - usually pull start. I'm thinking the new hpop was weak or something. Will scan again to see if I can get a pressure reading.
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
signguys my truck idles with about 5-600 psi. What pressures are you seeing? still having issues? let me knwo and we'll see if we can get this sorted out! can't leave you hanging now after getting that truck running!
Thread Starter
|
Junior User
Joined: Jan 2007
Posts: 50
Likes: 0
We rebuilt another IPR and put in the orig ICP. We also fixed the wiring to the IPR. Now we just got a 476 code. It is running much better. No more check engine light and it isn't stalling out. The 1211 code is gone. Now just the 476.
Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
Did you clear all the codes. P0476 may be left over from your previous repair. The engine will run rough with air in the HPO system. Drive the truck for ~5-10 miles to purge the it.
Trending Topics
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
PO476 is just a code for the exhuast backpressure valve. could be a plugged sensor, plugged tube or disconnected connector that is bolted to the intake side of the turbo right under the air filter tubing where it goes to the turbo.
the exhuast backpressure sensor is right behind the high pressure oil pump reservior toward the drivers side and has a metal tube on the bottom of it that goes to the passenger side exhuast manifold.
If I were you I wouldn't worry about the 476 code as it affect nothing other than the valve in the exhuast. if the vavle comes on excessively you can just unplug the connector on the the turbo and forget about it all together.
after all this you guys are pro's with the HPOP and the IPR!! keep us posted
the exhuast backpressure sensor is right behind the high pressure oil pump reservior toward the drivers side and has a metal tube on the bottom of it that goes to the passenger side exhuast manifold.
If I were you I wouldn't worry about the 476 code as it affect nothing other than the valve in the exhuast. if the vavle comes on excessively you can just unplug the connector on the the turbo and forget about it all together.
after all this you guys are pro's with the HPOP and the IPR!! keep us posted
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo