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I have read alot of sticky post from the top of the page. The tech links and have not found a story that helps me out. My truck has a 77 steering column and wiring harness .in a 73. The neutral safety switch is on top of the steering column. It's way out of adjustment.and the no start issues just started.I parked it and it started fine. I took it off the column and can move the slider and the truck will start. But the adjustment slots are not long enough to get the amount of adjustment up need. I don't see or feel the little arm in the column bent or broke. Do any of you have a idea? I'm thinking about making the adjustment slots longer but I don't want any half a@$ fixes either.
Last edited by Justin73supercamper; Oct 14, 2017 at 10:20 AM.
Reason: Forgot to add a symptom
I put a new switch in within the last year and periodically I have to bump the selector just right of park / left of reverse to start my truck. I've also thought about lengthening the holes to make the switch adjustable but did not for two reasons:
1) that piece seems to be under a lot of pressure and I didn't want to make anything worse, and;
2) since I know the work-around should it act up, I like that a potential thief may not be able to start my truck.
I've replied both to subscribe and hear who else has dealt with this and what their fix was, and to let you know this isn't unique to your truck. Good luck Justin.
- IH
What ever you do, this is not the correct way. Are you sure you way the switch body itself mounts to the tube is tight?
. Now that is a half a@$ fix. Yeah it was tight on the column that was the first thing I checked. I took it off and moved the slider until the truck would start. I then put the switch back up on the column and moved it until the truck would crank. But had a good 1/8 past the adjustment slots covering the mounting holes on the column. That is why I was wondering wtf could suddenly go wrong
I have read alot of sticky post from the top of the page. The tech links and have not found a story that helps me out.
My truck has a 77 steering column and wiring harness in a 73. The neutral safety switch (NSS) is on top of the steering column.
It's way out of adjustment.and the no start issues just started. I parked it and it started fine. I took it off the column and can move the slider and the truck will start. But the adjustment slots are not long enough to get the amount of adjustment up need. I don't see or feel the little arm in the column bent or broke.
Do any of you have a idea? I'm thinking about making the adjustment slots longer but I don't want any half a@$ fixes either.
NSS is the same: 1967/77 F100/350 (C7TZ-7A247-A / Motorcraft SW-600).
The NSS is controlled by the NSS selector lever (D0TZ-7B097-B - 1965/77 same). It snaps onto the shift tube thru a hole in the steering column shroud.
It has a knife blade end that fits into the NSS .. The knife blade is notorious for snapping off.
If the blade is in fact not snapped off, it could very well be the switch. They have 4 internal contacts and two spring loaded check ***** that roll over the contacts. It is all metal on plastic, so they do wear out.
I had one that enough of the plastic track wore away, it would mostly work, but only when you reached under and pushed it another 1/8th inch. You can disassemble the switch itself and have a look, they are quite simple, however if it is worn and only functioning when you move it just right, you should just replace it.
They are a truly awful design. I would argue they are the absolute worst part of the bumps and dents.
Well I got back on the truck today. Did some looking. I elongated the adjustment slots. And it worked I noticed my shift indicator was off so I figured I would adjust the shift linkage. I found the shift lever was moving freely. So I went thru the gears again and paid more close attention and it was going in gear but the shift indicator and lever was way off. Long story short I found this after further investigation . This is the inside of my shift collar. Good thing I keep spare parts around.
good catch. I had to make the same fix. mine had worn through some of the signal switch wires so do an inspection.
will do. I'm getting ready to go outside and finish reassemble. Gotta read up on how to properly adjust the shift linkage. I'm sure glad I kept a steering column from a van I parted. Saved my butt.
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. Now that is a half a@$ fix. Yeah it was tight on the column that was the first thing I checked. I took it off and moved the slider until the truck would start. I then put the switch back up on the column and moved it until the truck would crank. But had a good 1/8 past the adjustment slots covering the mounting holes on the column. That is why I was wondering wtf could suddenly go wrong
