91 Custer Issues
Thread Starter
Cruising
Joined: Aug 2011
Posts: 11
Likes: 0
91 Custer Issues
Hello All,
I've gone through several posts on the clusters and see some similar behavior issues but nothing exact.
My cluster never shows properly. I see fragments of the Odometer, fuel level and other readouts in the LCD.
Now the weird part, it clears up significantly when I hit about half a tank. It's not perfect but almost readable.
The small print like the mileage or trip meter is always partial characters.
I'm not sure if I should pull it out and start looking for ground issues, bad resistors, power supplies or just send it out for repair.
To be honest, I find the black font on the orange background difficult to see in the sun anyway. Maybe it would be ok if the black was bold and complete but alternatively, I would like to see if there are any aftermarket displays out there with higher contrast.
Any suggestions?
Thanks in advance,
Kennedy
I've gone through several posts on the clusters and see some similar behavior issues but nothing exact.
My cluster never shows properly. I see fragments of the Odometer, fuel level and other readouts in the LCD.
Now the weird part, it clears up significantly when I hit about half a tank. It's not perfect but almost readable.
The small print like the mileage or trip meter is always partial characters.
I'm not sure if I should pull it out and start looking for ground issues, bad resistors, power supplies or just send it out for repair.
To be honest, I find the black font on the orange background difficult to see in the sun anyway. Maybe it would be ok if the black was bold and complete but alternatively, I would like to see if there are any aftermarket displays out there with higher contrast.
Any suggestions?
Thanks in advance,
Kennedy
Thread Starter
Cruising
Joined: Aug 2011
Posts: 11
Likes: 0
No, the only time it changes is when I get to half a tank.
I mistakenly replied to a dead thread on gas tank pressure but that is my only lead so far. When I hit half a tank, the display gets much better but never perfect.
I think I need to pull it and start trying to find the problem but to be honest, pulling will be easy by comparison to diagnosing the problem. I'm not sure where to even start when it comes to electrical type problems.
I mistakenly replied to a dead thread on gas tank pressure but that is my only lead so far. When I hit half a tank, the display gets much better but never perfect.
I think I need to pull it and start trying to find the problem but to be honest, pulling will be easy by comparison to diagnosing the problem. I'm not sure where to even start when it comes to electrical type problems.
Burning Brakes
Joined: Nov 2008
Posts: 995
Likes: 1
From: Naples Campania
The ECM feeds the cluster raw info and it creates the number. I don't think it's a connection issue. Your cluster might be starting to go out.
There are other options out there, but they will get a little expensive.
http://www.vettaid.com/
There are other options out there, but they will get a little expensive.
http://www.vettaid.com/
Thread Starter
Cruising
Joined: Aug 2011
Posts: 11
Likes: 0
The ECM feeds the cluster raw info and it creates the number. I don't think it's a connection issue. Your cluster might be starting to go out.
There are other options out there, but they will get a little expensive.
http://www.vettaid.com/
There are other options out there, but they will get a little expensive.
http://www.vettaid.com/
I guess my options are now to look for someone who might rebuild the LCD or consider replacement with something like these.
Very nice looking though.
Thanks again for the link
Burning Brakes
Joined: Nov 2008
Posts: 995
Likes: 1
From: Naples Campania
Thanks navy_vette, that's a great link to have. I wonder how they figured out how to take the "raw info" from the ECM and translate that into analog gauges.
I guess my options are now to look for someone who might rebuild the LCD or consider replacement with something like these.
Very nice looking though.
Thanks again for the link
I guess my options are now to look for someone who might rebuild the LCD or consider replacement with something like these.
Very nice looking though.
Thanks again for the link
Digital uses a stepped gate circuit. Ones and zeros kind of thing. It's something like .1 volt increase = 1 mph. I've dealt with these kinds of displays for most of my career. They are a PITA and it would take me a day to explain it in person, a lot longer like this.
\
P.S.
I've been looking at the 6 gauge setup for my 91, but I want them to use diamond plate and powder coat it black. I think it would look sweet!
Team Owner
Joined: Jul 2004
Posts: 28,521
Likes: 3,312
From: Hartford WI
The ECM feeds the cluster raw info and it creates the number. I don't think it's a connection issue. Your cluster might be starting to go out.
There are other options out there, but they will get a little expensive.
http://www.vettaid.com/
There are other options out there, but they will get a little expensive.
http://www.vettaid.com/
Pro
Joined: Apr 2001
Posts: 744
Likes: 13
From: Lenoir City TN
I had a problem with mine where it would scramble and it was affected by bumpy roads. As time went on it got worse. Sent the gauge pod off for repair got it back and still had the same problem. Turned out that the connection to the CCM behind the radio was the problem. I found it by moving the connections around. Don't know if that is the problem with yours but it would sure be cheaper than replacement.
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Thread Starter
Cruising
Joined: Aug 2011
Posts: 11
Likes: 0
Thread Starter
Cruising
Joined: Aug 2011
Posts: 11
Likes: 0
I had a problem with mine where it would scramble and it was affected by bumpy roads. As time went on it got worse. Sent the gauge pod off for repair got it back and still had the same problem. Turned out that the connection to the CCM behind the radio was the problem. I found it by moving the connections around. Don't know if that is the problem with yours but it would sure be cheaper than replacement.
Team Owner
Joined: Jul 2004
Posts: 28,521
Likes: 3,312
From: Hartford WI
