Reverse Lights Switch Location
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Joined: Jul 2009
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http://inlinethumb23.webshots.com/22...600x600Q85.jpg
Hmm i dont know. I may have not posted it correctly. You can do a search for NSS and find it that way.
Hmm i dont know. I may have not posted it correctly. You can do a search for NSS and find it that way.
Senior User
Joined: Jul 2009
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From: Huntsville, AL
Got it. Thanks.
Now for quite possibly the stupidest question in the world...
In that diagram...what is the outer manual lever supposed to be connected to? In my truck, as purchased from the PO, it is not connected to anything. I find it hard to believe that lever was put there just for looks.
Now for quite possibly the stupidest question in the world...
In that diagram...what is the outer manual lever supposed to be connected to? In my truck, as purchased from the PO, it is not connected to anything. I find it hard to believe that lever was put there just for looks.
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Im not sure, but I would think that that would have to be connected to the linkage coming from the range selector on the the column. Unless it was to manually take the trans out of gear, like if the truck had to be towed or something.
Lemme check...
Lemme check...
Senior User
Joined: Jul 2009
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From: Huntsville, AL
I assumed it needed to be hooked up to the shifter linkage somehow...and when it wasn't, I thought I had the culprit. But then the neutral-start functioned just fine, so I was puzzled.
I'm going to check the grounds back at the tail light housing, then I'm going to jump the NSS and see if the lights work.
BTW Vaokie, apologies!
I'm going to check the grounds back at the tail light housing, then I'm going to jump the NSS and see if the lights work.
BTW Vaokie, apologies!
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I wonder if you moved that outer manual lever by hand, would the reverse lights come on.
Will the truck ONLY start in neutral or park like its supposed to? If not, i wonder if that switch was just moved to the park or neutral position and just left there since it isnt hooked up. That way it would start.
Will the truck ONLY start in neutral or park like its supposed to? If not, i wonder if that switch was just moved to the park or neutral position and just left there since it isnt hooked up. That way it would start.
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Joined: Jul 2009
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From: Huntsville, AL
- Moving that lever by hand didn't seem to make the reverse lights come on. Could've been that I didn't hit the right spot with it, but I swept it very slowly through it's whole range of motion, and the wife didn't see the lights come on.
- It only starts in N or P. Put it in D, 2, or 1, and it won't start.
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Senior User
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And when you look at the bottom of the steering column, down under the dash, there isnt a switch like I posted earlier for the PRE 1978 trucks is there? Just wondering if someone has maybe put a different column in it.
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Hopefully someone else will chime in pretty soon. My knowledge of this is kinda limited. I will look up the illustration when I get home and see what that's supposed to connect to, if anything. Sorry I cant be of more help
New User
Joined: Jun 2010
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My daughter's 79 did same thing with the reverse lights not working searched and seached didn't think it was the NSS either because the truck only started in N and P then 3 months later it intermintly would start in any gear. I replaced with one off of ebay($36) and not only did it start right the reverse lights worked great. As to the lever I'll have to look when she gets home, off the top of me head I only remember the shifter lever and the kick down lever from the carb.
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I just replaced NSS on a 78 F250 mounted on trans. Reverse lights werent working but neutral safety function worked fine. I checked everything I could think of before spending about $75 for NSS at Autozone. After swap reverse lights worked. Mine was soaked with oil which probably contributed to failure. The wires run up to the top of firewall to a connector behind the carb area.
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I checked my illustration manual and couldnt see that that outer manual lever is supposed to connect to anything. I would like to know what it's for if anyone knows. 
Anyway, like the above post said, my NSS was bad too, causing the reverse lights not to work but the neutral and park start function worked fine.
Anyway, like the above post said, my NSS was bad too, causing the reverse lights not to work but the neutral and park start function worked fine.