'84 Dash
Thread Starter
Intermediate
Joined: Mar 2010
Posts: 48
Likes: 0
From: Palm Bay Florida
'84 Dash
I have an '84 with the electronic panel, and am wondering how without the car running if you can tell that it is working properly. When I turn the key on, the whole thing lights up and stays bright. Should it remain like this or start to monitor sensors before the car starts? What would cause it to not monitor anything and to stay fully lit. Thanks.
John
John
Instructor
Joined: Jun 2004
Posts: 155
Likes: 1
From: Melbourne Florida
Are you talking that it never comes out of the system test (digits are all 8s, guages full deflection) or is it just very bright after initializing? If the guages are reading but just very bright with no adjustment thru the light switch, you have a sensor failure. Look for a red bar next to the reading (it's called the tell tale) if it is red you have a sensor failure. You can get rid of that by selecting another reading type (oil temp to oil pressure).
Woody
Woody
Thread Starter
Intermediate
Joined: Mar 2010
Posts: 48
Likes: 0
From: Palm Bay Florida
I will have to take a picture and post it I think. I dont see any numbers though. Everything is just really bright and at its max. I am talking about the speed, tach, fuel etc behind the wheel. I dont know what the other should look like in the center. This is my first Vette.
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
Since you live in the "sunshine" state my first guess is your LCD panels are burned by the suns UV rays (sun burn) from over exposure to sunlight. On a non sunburned panel - when the cluster is "off" all panels should apear to be black in appearance until the cluster is turned "on". Aftermarket reproduction LCD panels can be found on flEaBAY for a mear $300+ shipping for the 3 panel set. In the mean time, put on a pair of "polarized" sunglasses and see if you can read the LCD digits any better...this should help depending on degree of UV burn your panels have sustained.
PS: congrats on the purchase of your first 'vette.
PS: congrats on the purchase of your first 'vette.
Thread Starter
Intermediate
Joined: Mar 2010
Posts: 48
Likes: 0
From: Palm Bay Florida
Since you live in the "sunshine" state my first guess is your LCD panels are burned by the suns UV rays (sun burn) from over exposure to sunlight. On a non sunburned panel - when the cluster is "off" all panels should apear to be black in appearance until the cluster is turned "on". Aftermarket reproduction LCD panels can be found on flEaBAY for a mear $300+ shipping for the 3 panel set. In the mean time, put on a pair of "polarized" sunglasses and see if you can read the LCD digits any better...this should help depending on degree of UV burn your panels have sustained.
PS: congrats on the purchase of your first 'vette.
PS: congrats on the purchase of your first 'vette.
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
Le Mans Master
Joined: May 2006
Posts: 9,226
Likes: 9
From: Irvine Ca
IF so, power is getting it somewhere and voltage is getting to all the LCDs at the same time.
I'd start at Batee.com again. I've not seen this exact problem so I'm not sure if he addresses it....but it is worth trying.
Just think this....the black liquid crystals are supposed to block the light from coming through the colored lenses.....when a tiny electromagnetic field is generated from voltage...the crystals move to one side allowing the light to shine through.
Why would your crystals be moved to one side all the time??
Heat does this as well......
Now you can start trouble shooting.
Instructor
Joined: Jun 2004
Posts: 155
Likes: 1
From: Melbourne Florida
I would suggest looking to see if the dash connectors are all the way on. Probably the simplest way is to remove center control cover and look to left of the air conditioning ducts to see if connectors are all the way. From there if you need to you can get a skinny finger in the to push both connectors on, just make sure.
Woody
Woody
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