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Old 10-25-2021, 09:31 AM   #1
BrettL
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Default 1955 Ford Fairlane Automatic Question.

I've got a 55 Fairlane with a 700r4 auto transmission. I ran into an issue a while back where when trying to start the car I have to push the shifter up past park and hold it. I was able to fix it then by shifting down to drive and then pushing it back into park. Now the issue is back and I can't get the car to turn over. Has anyone run into this issue?
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Old 10-25-2021, 10:01 AM   #2
Ole Don
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Default Re: 1955 Ford Fairlane Automatic Question.

It sounds like the ignition interlock needs to be adjusted.
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Old 10-25-2021, 12:26 PM   #3
dmsfrr
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Default Re: 1955 Ford Fairlane Automatic Question.

Find the Neutral Safety Switch and see if you can adjust its position in relation to the shift linkage movement.

There may also be worn bushings in parts of the original '55 shift linkage.
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Old 10-25-2021, 03:10 PM   #4
craig
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Default Re: 1955 Ford Fairlane Automatic Question.

Since a 700R4 doesn't have an integral nss, do as dmsfrr mentioned. If you still have the '55 steering column, then it probably has the original nss still in use.
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Old 10-25-2021, 06:08 PM   #5
Gene F
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Default Re: 1955 Ford Fairlane Automatic Question.

I did not know a 700R4 would fit i the 55 ford.
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Old 10-25-2021, 06:59 PM   #6
Daves55Sedan
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Default Re: 1955 Ford Fairlane Automatic Question.

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Quote:
Originally Posted by dmsfrr View Post
Find the Neutral Safety Switch and see if you can adjust its position in relation to the shift linkage movement. There may also be worn bushings in parts of the original '55 shift linkage.
Exactly. And if nothing happens now when you turn the key in the ignition, the neutral safety switch may now be burned out. Attempting to operate the starter using a mis-aligned neutral safety switch will greatly affect the life of the switch contacts. It is essential to get the switch adjusted so that the contacts seat dead on when the gear shift lever is in neutral.
First, check the rubber grommet in the lever that operates the shift link to the transmission. If that grommet has been softened by oil or if it is damaged it needs to be replaced immediately so that a proper adjustment can be made of the neutral safety switch.
Another similar problem can be at the bottom of the gear shift link where it goes into the transmission shift lever. If that pin that goes through the hole is worn real bad, or if the hole in the shift lever has been elongated, there will be a lot of slop in the link which can effect proper position of the neutral safety switch. All those things can be repaired with some patience and a few new parts.
Again, the quality of the chinese made repro neutral safe3ty switches is very substandard. They look good on the outside, but the materials, ampere ratings of the contacts and method of assembly of contacts to arm falls far short of original equipment. These units absolutely must be adjusted properly in order to get maximum life out of them and even so, they can be expected to fail in a year or so if the car is driven daily, that's with a solid proper adjustment.
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