SA speedo issues
#1
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Join Date: Oct 2008
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SA speedo issues
I just got a 79 sa automatic and the speedo doesn't work. The odometer works though. When pulling away from a stop it goes to 100, it bounces around and then goes to zero.
#2
1st-Class Engine Janitor
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If the odometer is working properly, then the speedo itself is dirty or damaged. Could just be crud collected on the armature, or could be a spring failure, or something bent.
These are simple magnetic/mechanical units, driven by a rotating cable. No electronics. If the odo is working properly, that means the rotating cable is OK as is the drive gear in the trans. Only other failure point is the speedo mechanism itself.
These are simple magnetic/mechanical units, driven by a rotating cable. No electronics. If the odo is working properly, that means the rotating cable is OK as is the drive gear in the trans. Only other failure point is the speedo mechanism itself.
#3
RX HVN
iTrader: (2)
ebay has SA instrument clusters on sale all the time for $20-$80. Or check the FS forum here too. Easy swap in, good to have standing by in case you pull yours apart and discover either it can't be fixed, or you need a part (of which none are available new). Generally these are pretty reliable, so a used one is worth considering...
79 or 80 will fit.
Stu Aull
80GS
Alaska
79 or 80 will fit.
Stu Aull
80GS
Alaska
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