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post #1 of 8 (permalink) Old 12-14-2009, 09:32 AM Thread Starter
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Overdrive switch

My overdrive switch started acting up the other day. I started the car and the light was on (o/d off), so I pushed the switch to turn it back on again, but the switch felt like the spring had gone a bit weak.

It happened a few times, then on Saturday I couldn't get the switch to turn the o/d on so I got hold of the switch to gently pull it back a bit, but the whole middle section of the switch button came out. I put it back in, and now it doesn't turn the o/d off at all. The button looks like it just pushes on some contacts in the shifter handle to work the o/d off function. It's not really a problem not being able to turn the o/d off, except sometimes on slight hills, or stop start driving when it would be handy.

Does it sound like the contacts have been flatenned, or am I missing a spring or something? I don't really want to have to fit a new shifter.

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post #2 of 8 (permalink) Old 12-15-2009, 07:47 AM Thread Starter
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post #3 of 8 (permalink) Old 12-16-2009, 08:02 AM Thread Starter
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Is the overdrive switch is supposed to come apart?

Is there supposed to be a spring in there?

Can you buy a switch without buying a complete shifter knob (for a 1994 car)??

Would it be easier to bypass the existing switch and put a seperate one on the console somewhere?

"...put me on a highway, show me a sign, and take it to the limit one more time"

The Eagles
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post #4 of 8 (permalink) Old 12-16-2009, 12:22 PM
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The dealer sells the switch independently.

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post #5 of 8 (permalink) Old 12-17-2009, 12:29 PM
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Quote:
Originally Posted by Andy625UK View Post
Is the overdrive switch is supposed to come apart?
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post #6 of 8 (permalink) Old 12-17-2009, 02:27 PM Thread Starter
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Ok I kinda knew the answer to that question.

When I couldn't get it to turn the od back on again I tried gently pulling the switch out of the handle, thinking it had got stuck in the "in" position. The thing just came out with no resistance at all! When I look into the hole I can see the copper contacts. I think they may have been flattened by the mechanic that test drove it. Maybe he thought he was pushing the main shifter knob or something (???).

I was thinking of seeing if I could gently pull the contacts back into shape. I don't want to end up with the od stuck off though.

"...put me on a highway, show me a sign, and take it to the limit one more time"

The Eagles
1975

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
http://www.cardomain.com/ride/2149821

RIP Dutch T-Bird (Robert Hendriks) 1970-2012 No doubt looking down on us from his low-riding T-Bird in the sky.
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post #7 of 8 (permalink) Old 02-02-2010, 07:08 PM
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There is a very flimsy copper contact built into a plastic case along the vertical shifter shaft. I had some issues years ago with putting it back in right after taking it apart for some work. There are only 2 wires going to it, you could run an external aftermarket switch in theory.
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post #8 of 8 (permalink) Old 02-02-2010, 07:12 PM
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Quote:
Originally Posted by tbirdsc14 View Post
There are only 2 wires going to it, you could run an external aftermarket switch in theory.
As long as it's a Momentary (Normal Open) SP switch, should work fine.

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