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Overdrive Dash light???

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Old Oct 25, 2004 | 04:30 PM
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From: Grand Sport #82
Default Overdrive Dash light???

I have a 87 auto... When the sun is just in the right angle on my dash, I can see an overdrive [D] symbol in the same area as the rev. counter
Is this light surpose to come on when im in overdrive...Because it dosent...
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Old Oct 25, 2004 | 04:45 PM
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the general used the same generic information panel for all early vettes reguardless of options... if you take the panel off you'll see behind it that there is no light, and no space for a light... so you're fine
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Old Oct 25, 2004 | 04:54 PM
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oki ... this is for the manual trans. or what?
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Old Oct 25, 2004 | 05:11 PM
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I believe so... but I'm not sure, I've never been in a manual... maybe one of those guys can confirm it
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Old Oct 25, 2004 | 05:11 PM
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It's for the manual tranny equipped Vettes from `84-`88.
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Old Oct 26, 2004 | 09:31 AM
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Huh! I gotta disagree My 87 auto also has the OD light and the upshift light.When your driving in D it's supposed to come on at a preset computer setting for fuel economy, letting you know when it's best to shift into OD. I also have another friend with an 87 and his is the same as mine.
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Old Oct 26, 2004 | 10:24 AM
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Originally Posted by rick lambert
Huh! I gotta disagree My 87 auto also has the OD light and the upshift light.When your driving in D it's supposed to come on at a preset computer setting for fuel economy, letting you know when it's best to shift into OD. I also have another friend with an 87 and his is the same as mine.

That's odd, and have you seen it come on? My panel has those markings, but they never came on- I opened it up to replace the bulbs, and there are no spots for the bulbs... and I thought the upshift light was on the digital dash?
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Old Oct 26, 2004 | 11:19 AM
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Originally Posted by rick lambert
Huh! I gotta disagree My 87 auto also has the OD light and the upshift light.When your driving in D it's supposed to come on at a preset computer setting for fuel economy, letting you know when it's best to shift into OD. I also have another friend with an 87 and his is the same as mine.
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Old Oct 26, 2004 | 12:06 PM
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From: Why are there squished peanut butter cups in my underware?
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Key word.. supposed.
They did not make two different instrument panels for sticks and autos.
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Old Oct 26, 2004 | 12:12 PM
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From: Grand Sport #82
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Hmm well My cars overdrive er all Ok. But without any light. What am I to check? The bulb? Fuse?
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Old Oct 26, 2004 | 12:17 PM
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There is no functional overdrive light for automatics.
The upshift light is functional with autos and manuals `86-`89.

Last edited by Z-07 freak; Oct 26, 2004 at 05:15 PM.
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Old Oct 27, 2004 | 11:53 PM
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Originally Posted by rick lambert
Huh! I gotta disagree My 87 auto also has the OD light and the upshift light.When your driving in D it's supposed to come on at a preset computer setting for fuel economy, letting you know when it's best to shift into OD. I also have another friend with an 87 and his is the same as mine.

Same here Rick

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Old Oct 27, 2004 | 11:58 PM
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Originally Posted by rick lambert
Huh! I gotta disagree My 87 auto also has the OD light and the upshift light.When your driving in D it's supposed to come on at a preset computer setting for fuel economy, letting you know when it's best to shift into OD. I also have another friend with an 87 and his is the same as mine.
this is what my auto 86 does
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Old Oct 28, 2004 | 01:53 AM
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Originally Posted by Z-07 freak
Key word.. supposed.
They did not make two different instrument panels for sticks and autos.
My 85 has no overdrive light on the panel or space for one. My 4+3 light comes on the DIC. Later year 4+3s did move the light to there though. The right hand LCD pane changed many times, I believe it was different in 84,85,86... and as mentioned, different ones for sticks or autos in some of those years.
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Old Oct 28, 2004 | 02:16 AM
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Originally Posted by rick lambert
Huh! I gotta disagree My 87 auto also has the OD light and the upshift light.When your driving in D it's supposed to come on at a preset computer setting for fuel economy, letting you know when it's best to shift into OD. I also have another friend with an 87 and his is the same as mine.
My 86 (auto) has NO light behind the OD light.

HOWEVER!, I actually got the UPSHIFT light to come on once while climbing a long slight grade in 3rd (D) at about 35MPH. Took about two miles and the light came on! So I backed off slightly, the light went out, last time I ever saw it.
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