Tons of Buick Parts ( Some Hard to Find )

Caspers electronics they sell re calibrated OEM boost/tach module...or can just service the boost/tach module out of yours ..or go through the entire unit and upgrade the ribbon on back
 
It’s nice to have them work but do not rely on it for an actual boost gauge reading. Just take the cluster out and remove the tach/boost module and send it to Casper’s electronics. They charge like $100 for the service.


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