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Old Mar 31, 2008 | 03:28 PM
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Neutral Safety Switch

Installed new nss. Got adjusted so it will start in neutral, but will not start in park and the back-up lights don't work.
The old nss allowed it to start no matter which gear it was in and the back-up lights did not work.
Any suggestions would be appreciated.

Thanks,
John
 
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Old Mar 31, 2008 | 05:10 PM
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Did you do the installation with shifter in Neutral and the transmission in neutral ?

You have to do it that way.

Installing it in Park causes problems
 
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Old Apr 2, 2008 | 03:46 AM
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It was not in park when I installed because the notches would not line up with it in park. This is a nos nss, is it possible that it is faulty? Is there any way to determine if it is faulty?

Thanks,
John
 
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Old Apr 2, 2008 | 04:11 AM
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Will it start in Park if you wiggle the shift lever?

Is the NSS's selector lever still on the mast jacket?

This lever controls the NSS, it snaps off, now the vehicle might start in any gear.

D0TZ-7B097-B .. NSS Selector Lever

This part is still available from Ford, but their website is down, so I can't list the price.

The correct NSS used 1967/77: C7TZ-7A247-A (Motorcraft SW-600)
 
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Old Apr 2, 2008 | 07:55 AM
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Wiggling shift lever makes no difference. I have held the key in the start position and slowly moved shift lever from top to bottom and it will only start in neutral.
appreciate the info.

Thanks,
John
 
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Old Apr 2, 2008 | 10:31 AM
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Obtuse, so what position was it in when you installed it ?

To install the NSS properly the gearshift and transmission must be placed in neutral manually with linkage loosened before the NSS is twisted while using drill bit through switch to set it in the proper position

 
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Old Apr 2, 2008 | 11:31 PM
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I actually had to put transmission in the drive or second gear position in order to get the grooves to lign up correctly for installation.

Thanks,
John
 
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Old Apr 2, 2008 | 11:45 PM
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That's the problem.

You have loosen those two mounting bolts so the switch can rotate to align the holes up.

chock the wheels
Place gearshift in Neutral

crawl under truck

Loosen shifter connection to lever
manually place Trans in neutral
Loosen NSS mounting bolts
Rotate switch until drill bit can slide all the way thru switch

Tighten all linkage parts and NSS mounting bolts you loosened.

Remove drill bit.

Get up place truck in Park.. try to start

same for neutral
 
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Old Apr 3, 2008 | 10:32 PM
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Dennis,
That is the exact procedure I used once the switch was installed. When first installed it would not start in neutral or park. I did the adjustment procedure just as you described and now it will start in neutral but not park.

I really appreciate all the input from everybody so far.

Thanks,
John
 
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Old Apr 3, 2008 | 10:47 PM
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Is there any play in the linkage?

How about if you pull the gearshift further to park and try to start ?
 
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Old Apr 7, 2008 | 07:20 AM
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No play in the linkage. This weekend I actually took the switch loose from the transmission. With my fingers I put the switch in the neutral position and it started. With my fingers I moved the switch to the park position, no start. I played with it in this manner for a while with no luck.
Unless someone has another suggestion I plan to pick up an aftermarket at the local parts house.
Once again, I appreciate all the input from all.

Thanks,
John
 
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Old Apr 7, 2008 | 11:57 AM
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Try cleaning it.

I use Varsol, then lacquer thinner, then electrical contact cleaner, compressed air.
 
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Old Apr 7, 2008 | 12:33 PM
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Best I can tell the switch housing is a sealed unit. How do I go about cleaning internally?

Thanks,
John
 
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Old Apr 7, 2008 | 12:47 PM
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let the liquids into the internals through the switch hole and adjustment hole.

That's why you need compressed air
 
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Old Apr 7, 2008 | 12:57 PM
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Thank you. I will give it a go next time I get the chance.

Thanks,
John
 
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