1985taylor1925
Senior Member
I wanted to follow up on a few things.
The CEL turned out to be the A/F sensor trifecta: P0125, P1135 and the out-of-range one. Heater tested dead and it had 90K on it so that was worth doing. It might have something to do with when the dangling sensor got hung up on the frame as pulling it forward. I put some serious stress on it so that may have broken the heater internally. The wire connections were good but the heater was open.
I was wrong above about ABS codes. On the '99 3rd gen (not sure about later years), nothing beyond a paper clip and a foot is needed to read the codes. Techstream can't find an ABS module. In fact, on my rig with a 5-speed, the only extra module it sees is SRS. It does allow some neat extra engine analysis functions as well.
The codes turned out to be for both rear sensors. They both ohmed out good at the connector by the fuel tank, so I think the issue is that the POR15 kept them from seating into the diff. I don't like the ABS in winter anyway, so I may leave this until spring.
Finally, when I had to use my heater on the first cold day, I thought the truck would explode when I turned the fan to high. It turns out the local beasties had been having a field day in my vent system while it was up on jacks. I opened up the fan and found this:
That was quickly resolved. No live or dead beasties, thank goodness.
Was just looking through this thread (which is an amazingly ambitious accomplishment by the way) and saw this. I am suspicious of the same thing as I find evidence of mice and rabbits in my engine bay constantly out here in the wyoming plains.
Where is this fan located? Is this near the heater core, behind the dash panel? Or is this the blower fan under passenger side floor board?
