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

4+3 OD stopped working

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Old Apr 23, 2006 | 07:24 PM
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Default 4+3 OD stopped working

I took my car out this afternoon to give it a good run after doing some fine tuning on my Lt1 intake conversion. I went through all the gears and the went to put it on OD and nothing happened. The light on the dash comes on but it doesn't shift. Is there a fuse for it or relay I can check? I also discoveredd that my climate control has no power. Are they related or did two things break at the same time?
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Old Apr 23, 2006 | 09:24 PM
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I just did a forum search and came up with only a little info. Theres a relay for the OD but where is it? \ Im getting pretty frustrated with this thing so any advice will help alot
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Old Apr 23, 2006 | 09:42 PM
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Relay on firewall by dizzy.
Other things ;
Is the wire still on the O/D connector at the trans?
The manual switch itself may be faulty.
Will the O/d engage automatically by the ECM?
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Old Apr 24, 2006 | 08:38 AM
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http://members.shaw.ca/agent86/OD%20Switch.pdf
http://members.shaw.ca/agent86/Overdrive-manual.pdf
http://members.shaw.ca/dankai/AC%20Electronic.pdf
http://members.shaw.ca/corvette86/Co...0View%2086.pdf
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Old Apr 24, 2006 | 09:24 AM
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no, it won't go into OD by itself. The button has to be pushed but it has always been that way. Is it supposed to go in by itself?
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Old Apr 24, 2006 | 09:27 AM
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I appreciate those diagrams. I will tinker with it tonight and let you know what happens
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