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

1986 Digital Dash Intermitent Problems.

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Old Feb 15, 2013 | 02:37 PM
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todillinder's Avatar
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Default 1986 Digital Dash Intermitent Problems.

I just got done going through 249 threads mentioning the Digital Dash.
when I first purchased the 86, the lighting did not work, however you could see everything operating for the Digital Dash Cluster. I then replaced all four bulbs and it worked perfect for a few days.
At intital start, the dash operates properly, however sometimes it will blank out like before, or be all scrambled with or without back lighting of the LEDs, just depending what it feels like appearently.
Sometimes it will right itself on its own, or when I turn the car off and restart it, it will then operate correctly.
Any help is greatly appreciated.
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Old Feb 15, 2013 | 03:08 PM
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Sounds like the pin array for the power supply is loose. Needs to be resodered. There is a great video somewhere on youtube that covers the whole repair.
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Old Feb 15, 2013 | 04:10 PM
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Originally Posted by todillinder
I just got done going through 249 threads mentioning the Digital Dash.
when I first purchased the 86, the lighting did not work, however you could see everything operating for the Digital Dash Cluster. I then replaced all four bulbs and it worked perfect for a few days.
At intital start, the dash operates properly, however sometimes it will blank out like before, or be all scrambled with or without back lighting of the LEDs, just depending what it feels like appearently.
Sometimes it will right itself on its own, or when I turn the car off and restart it, it will then operate correctly.
Any help is greatly appreciated.
The link below will help you fix it

http://www.batee.com/corvette/dcrg/index.htm

(It is usually due to the dash connector plugs not in all the way or a bad earth to the engine block on driver side above oil filter)
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Old Feb 15, 2013 | 05:14 PM
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Thank you much Guys.
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Old Feb 16, 2013 | 03:40 AM
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The ground on the side of the engine block above the oil filter can also cause problems with the dash.
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