Is there a neutral safety switch???

[smoothy321]

2007 expedition
Is there a neutral safety switch? Or what is called a transmission position switch? I looked on the side of the transmission. There is just a mechanism that the shifter engages, but there is nothing it plugs into electronically, nor is there a way to align anything as far as I could tell. It looks something like this

 

[smoothy321]

K, no answers. Here's one in case someone else is wondering. There is no external neutral safety switch on 6 speed transmissions. The transmission position selector is inside the transmission itself. That is what my mechanic told me.

 

[Flexpedition]

When I think of a neutral safety switch, I think of its purpose being to not allow the vehicle to be started while in Drive or Reverse. Only starts while in park or neutral. Its part of the interior shifter mechanism itself.

Expedition, like every other automatic transmission vehicle produced for quite some time now, for decades atleast, follows this standard.

 

[TobyU]

When I think of a neutral safety switch, I think of its purpose being to not allow the vehicle to be started while in Drive or Reverse. Only starts while in park or neutral. Its part of the interior shifter mechanism itself.

Expedition, like every other automatic transmission vehicle produced for quite some time now, for decades atleast, follows this standard.

Not really. That is the shift Interlock system that's part of the shifter. In the old days the neutral safety switch was just as in switch which that got pushed in park and then I guess they found ways to add neutral also. Ford has been calling it in MLPS for a couple of decades. Manual lever position sensor or manual lever position switch. The neutral safety circuit that only allows the vehicle to start in park or neutral has been combined into that switch.
The aode had it and I believe the aod possibly before that, but definitely the aode, the 4 R 70, 4 R 70 W, for r75, 4r100,
All of these had the large plastic switch that's lit on to the shaft that the gear shift moves on the side of the transmission. The one in the picture, the 6-speed obviously has it built in internally.

 

[1955moose]

If you ever had a 50's/ 60's Automatic that didn't have it or didn't work, you grabbed for that big old brake pedal as your 4,000 pound plus baby lurched forward and took off without you. Ah again the good old days when big brother watched out for you. My big brothers watched me put a fork in a 120 volt light socket just to see who laughed harder. I was 4, they were 7,10,13,and 15. We learned not to do things twice in the old days. My parent's never child proofed a house. Thank goodness our family doctor made house calls in the late 50's! He was an Army doctor, like Mash, I think. He stitched me up more than once. Sometimes my mother would take me on 2 busses, with a wash cloth on my chin or head. We didn't pay for ambulances in those days. Don't remember one ever showing up for any of my 9 brothers and sisters. Kids today got it too easy. It was like growing up on a easy Army boot camp, I guess my mom was the seargent!

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[TobyU]

One of my hot rods had such a high duration cam in it that it really needed one of those vacuum reservoirs but I got by. However my good 2800 super holeshot converter went out and before I got my TCI 10in I had to put the one I bought it with back in which might have been a standard hole shot.
My idle was so rough even though the engine ran perfectly that every time I would drop it into drive it would die from the extreme drop in rpms.
So I pulled the wires off of my B&M megashifter and just always started it and gear.
It was no big deal on mine because it started as soon as you bumped the starter. I drove it six or eight months that way having to always start it in gear.

 

[1955moose]

The other thing a lot of hot rodders did was rig up a setup like Lincoln used with the hydroboost brake booster. It linked in with the power steering rack, and didn't rely on vacuum to work. It used power steering fluid. Vacuum drops when using a high performance camshaft, usually down to 12-13 inches, instead of the necessary 18-23 of a normal functional vacuum in your motor. Not fun trying to stop a 500 horsepower car with half the brakes! Surprised how many people that drove that way. Hell most still had old school crappy drum brakes, and no booster at all. Amazing these guys are still living today.

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[TobyU]

That was me. 4000lb car with drum all around and over 500hp. It wasn't too bad just not as much after you tun car off too.
Pontiacs had excessively power...power brakes and steering so it balanced out a bit.

You said the evil words...hydroboost and power master. I hate them!!!

I dealt with the power master pump on my first Grand National but with my nice 2nd one I converted to vacuum.
They sell more expensive kits to make it hydroboost off power steering but I don't see why on these.
The 'theory" that you don't have vacuum under boost doesn't work in real driving.

You have a one way check valve to vacuum booster anyway and every power brake system has 2-3 applications of vacuum assist left after car is turned off with no vacuum.
No one is going to be on a Turbo Buick boost long enough for the vacuum to bleed off and when they hit the brake they have at least full application.....and when you hit the brake you usually let off gas right before you do....so vacuum is heading back your way.

I have driven and road raced both oem and converted at well over 100mph and there is no difference....except vacuum conversion more reliable and you won't be going 100 and hit the brakes and find you have no power assist!!!

 

[1955moose]

You haven't lived till you try to stop a drum brake car in the rain. These kids with discs and abs are spoiled. Try sliding for 1/2 a block, yelling out like your talking to a horse, Stopp!

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[TobyU]

You haven't lived till you try to stop a drum brake car in the rain. These kids with discs and abs are spoiled. Try sliding for 1/2 a block, yelling out like your talking to a horse, Stopp!

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That is almost always very true.

For some reason my 67 GTO was a different beast.
When I got it I went through all 4. Turned some drums or replaced, all new bendix shoes, all new hardware and springs, made sure all wheel cylinders were leak free and moved easy.

This car stopped great and straight without locking any tires ever.
It replaced a 68 LeMans with front disc that never stopped as well and a couple of times on hard stops from high speeds locked up a front tire.

I certainly appreciate disc brakes though.