Running rough

YoTerryh · 02-27-2021, 10:45 AM

I'm on a road trip from Portland, currently in the Las Vegas area and my 01 E250 is running rough. Replaced oxygen sensors and one is not talking to the PCM. Rough running, no power in hills. Seeking suggestions, recce for qualified mechanic here or will be heading to Phoenix area soon. Kinda weighing my options while on the road. Thanks.

carringb · 02-27-2021, 10:48 AM

How do you know it isn’t reading the sensor ?

YoTerryh · 02-27-2021, 11:18 PM

I had it in a shop and they did diagnostics. Got me on the road, and provided some printouts of what they found.

carringb · 02-28-2021, 09:08 AM

You need to find the break in the 02 sensor wiring first. You probably melted the cat, but if you don't fix the 02 sensor wiring, you'll burn up the next one immediately. It's not common on the modular motors, but if a clip fails, the sensor harness can fall against the exhaust. Of course there's always rodent damage possible. Or even just a cracked connector. Don't keep driving without getting this fixed, because it can cause additional damage.

I've actually had good luck with Landmark Ford when it comes to wiring issues. I had the same issue on my '94 once, and it only took them 4-hours to trace and and splice the broken wire. Actually any of the Portland dealers should have no problem with this, EXCEPT Damerow. Don't go there. They'll probably quote you a full engine replacement...

YoTerryh · 03-01-2021, 10:23 AM

At home I'm less than two miles from Landmark Ford, but I'm currently I Las Vegas, heading for Mesa, AZ

86Scotty · 03-01-2021, 11:11 AM

Quote:

Originally Posted by YoTerryh

At home I'm less than two miles from Landmark Ford, but I'm currently I Las Vegas, heading for Mesa, AZ

The Pheonix area is not only huge but a huge hotspot for overlandy types. That translates to plenty of vans. I'd start a thread lookin for a good Ford guy in the Phoenix area.