Dave,Exhaust backpressure sensor tube is F4TZ-9D477-A. Carburetor cleaner helps if you try to clean out the tube.
Thanks for the answer.Mine's a 94.5, the sensor is behind the HPOP reservoir.
Nice work on taking the time to do some researchThanks for the answer.
Im having searching about of this and I got this from a friend in other forum:
OK here's what I can come up with. I know the OBS up to Mar 97 build date have the sensor mounted above and behind the HPOP reservoir. Mar 97 to the end of 97 may mount in front of the reservoir (my 97 was built in Dec 96 so it is just like my old 94, mounted behind the reservoir). Here's the part number info that goes with that (hopefully correct):
Exhaust Back Pressure Sensor Tube
(Ford) F4TZ-9D477-A, (International) 1821793C1 (94-Feb 97; mounts on bracket above/behind oil reservoir)
(Ford) F7TZ-9D477-AA, (International) 1830933C1 (Mar 97-end 97; may mount in front of reservoir)
There's another part number for the Super Duties (Ford 1C3Z-9D477-AA, IH 1837875C1).....
Also I found myself in a IH catalog this number 1831009C1 for a superdutys ?? so I really dont know about the SDs.
Thanks Tom.Nice work on taking the time to do some research