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Backup light switch.

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Old 10-26-2005, 03:34 AM
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FlyingDog
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Default Backup light switch.

I think mine is dead. I'm getting 11-12V to the 4-wire connector in the spare tire well. If I connect the two wires at the switch, the lights work. After resoldering the wires at the switch, the lights don't work with the shifter in reverse.

How does the switch work? When I took it out, it looked like an oil pressure type switch. There was nothing to mechanically push it to operate the switch. Would installing a short shifter effect positioning somehow with the different throw, thus causing the switch to not work?
Old 10-26-2005, 03:46 AM
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Airflite40
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I think that the reverse lights work off of a pressure switch in the tranny cause when my tranny fluid was leaking and low I noticed they wouldnt work. When I fixed the leak and topped off the tranny they started working again. But I have an AT so I dont know if it applies to 5spds.
Old 10-26-2005, 04:03 AM
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FlyingDog
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My tranny was just filled a couple weeks ago and doesn't leak anymore, but I'll check that. That may also be related to it not wanting to go into 5th without a little crunch each time.
Old 10-26-2005, 09:32 AM
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If you look at Parts 16 and 17 on Page 34-202 in the Factory Workshop Manuals, you will find that there is a small plunger that operates the switch. P/N 928 606 241 02 - $6.06 from us.

The shifting crunch could well be clutch drag...
Old 10-26-2005, 09:50 AM
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GlenL
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Have you checked the bulbs?

You can check the switch by using an Ohmmeter across it. The shifter doesn't matter so long as you can get the car to back up.
Old 10-26-2005, 04:58 PM
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FlyingDog
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Originally Posted by WallyP
If you look at Parts 16 and 17 on Page 34-202 in the Factory Workshop Manuals, you will find that there is a small plunger that operates the switch. P/N 928 606 241 02 - $6.06 from us.

The shifting crunch could well be clutch drag...
Thanks Wally, that part was not in there. I'll call Jeannie about bringing one to Frenzy.

I just went for a short drive to test the brakes and now none of my gears work without a little crunch. I hope it's hydraulic and not the noisy throwout bearing failing.
Old 10-26-2005, 10:46 PM
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That's precisely how my throwout bearing failure proceeded. First the noise, then the death.

As it self-destructs it displaces the clutch plate less and less until it doesn't at all. The crunch IS plate drag, and a noisy throwout bearing is a dying one!

Have fun!
Old 10-26-2005, 11:59 PM
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Readjusting the pedal pre-load helped some, and I can get it to not crunch about half the time in 1st and reverse. Frenzy may still be possible. Oddly 1st and 5th are much worse than the other gears.



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