C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

4+3 Overdrive Switch Question???

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Old Aug 14, 2006 | 01:29 AM
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Default 4+3 Overdrive Switch Question???

My overdrive wasn't working so I decided to start the trouble shooting scenario today. So I got into the switch, and checked it for continuity. Yep, had that. Then I moved down to the wiring. I disconnected the connector, and measured continuity from both wires on the switch to the connector. Continuity on one, but not the other. I was onto something, and was exited to find it that quickly. So I cleaned the connector terminals, and I had continuity there, I thought. Turns out one of the wires was broken inside the insulation. This is something I rarely see, I'm glad I found it. So I started the soldering process with my head held high. Went to take the switch off, and like a typical vette, the damn thing shattered.

I guess what I am asking is. Can that switch be bought from autopart, or GM, or do I have to build my own??? Many Thanks...
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Old Aug 14, 2006 | 03:40 AM
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Can use any switch that fits from a elec supply place like Radio Shack.
What year model?
The late use a "momentary" on switch where I believe the early use a off / on switch.
PM Scorp508 , he knows 4+3 s , has prob got a part # for the switch

Last edited by rodj; Aug 14, 2006 at 03:43 AM.
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Old Aug 14, 2006 | 12:13 PM
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Originally Posted by rodj
Can use any switch that fits from a elec supply place like Radio Shack.
What year model?
The late use a "momentary" on switch where I believe the early use a off / on switch.
PM Scorp508 , he knows 4+3 s , has prob got a part # for the switch
Wups, Sorry, it is a 1988 L98. Thanks...

EDIT: Just checked with GM, and they have the switch. Over 30.00 b0nes is the price. Think I may see what the shack has, and adapt...

Last edited by Steel Breeze; Aug 14, 2006 at 12:21 PM.
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Old Aug 14, 2006 | 03:54 PM
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Advance search Scorp508's old threads for posts with "overdrive switch". He has a p/n listed somewhere in the archives where you can get the exact momentary switch for pennies on the dollar and solder it in yourself.
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Old Aug 14, 2006 | 04:13 PM
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Originally Posted by CentralCoaster
Advance search Scorp508's old threads for posts with "overdrive switch". He has a p/n listed somewhere in the archives where you can get the exact momentary switch for pennies on the dollar and solder it in yourself.
Hey Thanks Kevin, I shot him a PM. I couldn't find the post. Not much of a computer whiz here...
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Old Aug 14, 2006 | 04:16 PM
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http://forums.corvetteforum.com/show...29&postcount=5


Not as cheap as I thought, but still a deal.
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Old Aug 15, 2006 | 12:06 AM
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Hey Thanks Everybody, Got you a new part #: Try Radio Shack part # 275-1549a. Works like a charm, and cost me $3.49. The push shaft is only slightly smaller, but works fine. I chose to take the roll pin out, and replace it with a solid pin just a hair larger than the roll pin. Works GREAT.

Now, if I just hadn't broke my O.D. push button. I took it off, and put it on many times with no problem. Well when I went to button her up for the LAST time, that dude broke. I can't win, for loosing...

EDIT: http://www.radioshack.com/product/in...entPage=search

Last edited by Steel Breeze; Aug 15, 2006 at 12:24 AM.
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Old Aug 15, 2006 | 08:07 AM
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For 86-88 the overdrive switch is part 61F753 at www.newark.com and was $11.00 when I last bought one. This is exactly the same switch, but they look to be out of stock right now though.

The manufacturer of the switch and their part # is...

Manufacturer: TYCO ELECTRONICS / ALCOSWITCH
Manufacturer Part No.: MPA106F


p.s.

Sorry for the delay. I was fighting a virus outbreak at work yesterday for 14 hours, blah.
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