No Tach After Harmonic Balancer Replacement

OLDSMOBILE
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JTROTTER
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I have a 97 Olds Silhouette with about 170k miles in it. The crank shaft pulley/harmonic balancer was gong bad. The Outer ring was sliding out, eating up the serpentine belt.

I replaced the pulley with a new after market one from Napa but when I restarted the car, the tach. did not respond and the service engine light came on. Might I have damaged the sensor behind the pulley or is there something I need to do to reset the computer? Thanks!
Nov 7, 2007 at 11:50 PM
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CHEVY22
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did you inspect both pulleys side by side before reinstalling the new one ?? it could be that or like you said the sensor , make sure the wires are good since your balancer was coming apart , but most likely i would suspect the pulley but check the sensor snd the wires , that will lead you in the right direction

jim
Nov 10, 2007 at 11:13 AM