Question about 1992 Buick Century

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Speed omeder my speed omoder needle is wandering back and forth. I can not tell how fast i am going. My muffler fell off 2 days ago and is being fixed this am. there is no piping or muffler at all past the catalliac convrter. could this be related? i am worried that it's my transmission.

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Sounds like your speedometer cable is binding inside its sleeve.If you can get it loose from the rear of the instrument cluster in the dash (typically just pull the entire instrument cluster assembly out the front after taking out a couple or three screws) just shoot some dry graphite powder into it (available at Ace or Home Depot). Don't use oil or WD-40, as that will probably make it worse. It's doubtful that it's the transmission itself, the speedo is a simple thing driven by a cable from the transmission to the dash.

Posted on Oct 07, 2008


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