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Received a new-to-me 1997 F350 7.3L XLT Automatic from my father-in-law and I'm trying to do a once over of the vehicle. Looks like there was squirrels/mice in the engine bay at one point (the vehicle has been sitting up for a long time)
BESIDES a transmission issue (won't shift from 1st to 2nd without momentarily letting off the accelerator and also going straight from 2nd gear into 3rd w/ overdrive, entirely skipping 3rd) - there seems to be some obvious wiring issues.
In the engine bay on what I believe is called the "front under hood harness" there is a completely broken wire going into the connector for the fire-wall pass thru. I cleaned up the wire - but I'm unsure of the color and also not even sure what connector I'm looking at. If anyone can verify the name of the harness or even the plug I'm looking at - I'm pretty sure I can go from there, but at the moment I'm at a loss.
I plan on repairing the wire tomorrow, but I'm not even sure what it goes to to verify my repair?
See photos below. Overview photo Remnant of broken wire in the harness Clearest picture I could get of the color Ford Part #? listed on the wire wrap
FYI - was able to get a good video of which pin the wire went to and believe I have solved my own question.
It looks like it goes to Pin 1 - shift solenoid #2 (pink/orange wire), which would explain why I'm not able to automatically shift into second and why it skips third... I think...
I will repair the wire tomorrow and report back on if it corrected the shifting and to close out the thread.
Reminds me of my 96 not having AC. A pin was slightly recessed on the harness which was a 12V. Right beside a ground...pops fuse every time. Back where it belongs, AC works. Go figure!
It's not perfect, but much better than what it was doing before.
Down shifts pretty rough when slowing down (like coming off the interstate to a red light for example), and you can tell it shudders a TINY bit going into 3rd. But the fluid and filter desperately need to be changed, so I'm thinking some of that will clear up or at least get better.
Not sure when it was last changed, but it was overfilled and burnt when I checked it. I drained a quart or so and put some pre-clean in there. Going to drive it a few days then change it. Lurked the forums for the past few days and I'm going to change it using Mark Kovalsky's method with Mobil 1 Synthetic ATF.
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