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In 1990 through 1992 General Motors used a different speedometer set up than the prior or later years for many Chevy, GMC, and other GM name

The original tachometer and most aftermarket tachometers do not work with HEI ignition systems. Aftermarket replacement tachometers usually

WARNINGThese vehicles are equipped with airbags. Always disable the airbag system before working in the vicinity of the impact sensors, stee

When the reversing switch is not working correctly, it is usually a simple mater to diagnose with fairly high accurately.If you are not sure

If your tachometer seems to have a bouncing needle, only seems to work in a small range, or floats on acceleration, a Tachometer Filter just