Neutral safety switch location?

Neutral safety switch location?

Postby trapper20 [OP] » January 12th 2012, 7:37pm

Where is the neutral safety switch? I am not reusing the shift linkage electronics on my 700r4, so I need to be able to start the engine without the ignition knowing that the truck is in park/neutral. What is the easiest way to bypass the switch?
8" lift: OLV shackles, add-a-leaf springs, shop-made 4" blocks, 5" combo pipe/puck lift and OLV torsion keys. 32-11.50R15 Dunlop Mud Rovers on Cragar Soft 8's.
'76 Chevy 350 with mild cam, 87-95 heads, MSD ignition, headers
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Re: Neutral safety switch location?

Postby Phantom » January 12th 2012, 7:57pm

Factory location of switch is on the side of the transmission , if you have removed the transmission the switch went with it ,, to bypass it would to connect the the wires that go to the trans in a way that passes the voltage flow to complete the circuit
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Re: Neutral safety switch location?

Postby trapper20 [OP] » January 12th 2012, 8:33pm

Ok, thought so. Any idea which wires? There are two harness connectors to the shift linkage electronics assembly.
8" lift: OLV shackles, add-a-leaf springs, shop-made 4" blocks, 5" combo pipe/puck lift and OLV torsion keys. 32-11.50R15 Dunlop Mud Rovers on Cragar Soft 8's.
'76 Chevy 350 with mild cam, 87-95 heads, MSD ignition, headers
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Re: Neutral safety switch location?

Postby astroracer » January 12th 2012, 8:35pm

The neutral safety switch is at the bottom of the steering column. Runs off a rod actuated by the shift lever. You have to drop the column to get clear access to it. Putting the van in Park will still actuate it. :)
Mark
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Re: Neutral safety switch location?

Postby Phantom » January 12th 2012, 8:53pm

astroracer wrote:The neutral safety switch is at the bottom of the steering column. Runs off a rod actuated by the shift lever. You have to drop the column to get clear access to it. Putting the van in Park will still actuate it. :)
Mark

Not on a Gen2 , Gen 2 is located on the side of transmission
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Re: Neutral safety switch location?

Postby Phantom » January 12th 2012, 8:55pm

trapper20 wrote:Ok, thought so. Any idea which wires? There are two harness connectors to the shift linkage electronics assembly.

Yea I can tell you which wires are there , the connector also has the connection to the trans solenoids , I dig up a diagram that shows the wiring , I think it is the pink wire fro hot and the bk/white as ground
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Re: Neutral safety switch location?

Postby astroracer » January 12th 2012, 9:05pm

He said 700R4. I figured 1st gen. 4l60E is different but the NSS is on the bottom of his column if it's a 1st gen.
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Re: Neutral safety switch location?

Postby Phantom » January 12th 2012, 9:21pm

astroracer wrote:He said 700R4. I figured 1st gen. 4l60E is different but the NSS is on the bottom of his column if it's a 1st gen.

Yea that could be a bit confusing ,, he has a Gen 2 van and putting a '72 Chevy 350 in it , he is apparently trying to put the 700R4 in the van , :cheers:
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Re: Neutral safety switch location?

Postby astroracer » January 12th 2012, 9:26pm

Phantom wrote:Yea that could be a bit confusing ,, he has a Gen 2 van and putting a '72 Chevy 350 in it , he is apparently trying to put the 700R4 in the van , :cheers:

Ahh... That 'splains it... Thanks.
2004 Astro
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2000 Astro Conversion Van
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1994 Formula V8 Firebird
1988 Astro (the BadAst Project
1956 Chevy Station Wagon
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Re: Neutral safety switch location?

Postby Phantom » January 12th 2012, 9:51pm

Here is a pic of a fellow members 97 astro NSS and here is the wirung diagram for the transmission circuit

96 ground location
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97 Astro Neutral safety swich .jpg
97 Astro Transmission Circuit.pdf
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Re: Neutral safety switch location?

Postby trapper20 [OP] » January 12th 2012, 10:38pm

Sweet, thanks. Yeah, sorry I neglected to mention those details, astroracer. '97 van, '74 350, '91 700r4, or 4l60, to be precise.
8" lift: OLV shackles, add-a-leaf springs, shop-made 4" blocks, 5" combo pipe/puck lift and OLV torsion keys. 32-11.50R15 Dunlop Mud Rovers on Cragar Soft 8's.
'76 Chevy 350 with mild cam, 87-95 heads, MSD ignition, headers
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