89 dash blinking, any suggestions?

[plasticman]

Hi,
My '89 dash works for awhile then the 4 backlights go out and the turn signal indicators and the high beam indicator come on. I drive for a few miles and then they flip back on. Anyone have any ideas as to what may be causing this. I had to replace the backlights recently, and made sure all the connections were tight when I put the cluster back in. What gives???
Thanks in advance for any help.
Ben

 

[sriat]

Typical problem with this style of dash. You can send it in and pay several hundred dollars $400to $500 or more. OR you can fix it yourself

If you have not done this yet, you will have to...

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

There is alternative solutions, such as grounding a sensor that is in the footwell.

If you hit the above link, you may think this is a difficult procedure. Just take your time and I believe you will be happy with the results. This in the long run will make your dash perform the way it came from the factory.

 

[tonylong]

I've had a similar ut less annoying problem for several years. I've noticed it gets worse in hotter weather. Have you noticed a temp effect? In cold weather it's also darker at night. Since the instrument lights are regulated by ambient light too I wonder if that feature can be related to the problem. If you shine a light directly into the ambient light sensor - do the lights come on or brighten?