NOTE #1: on 6-Cylinder engines, the Tach wire is a BLACK, on V-8 engines, the Tach wire is a
BLUE/WHITE, both wires are at the INSTRUMENT CLUSTER in a BROWN Plug. On the
6-Cylinder, the BLACK wire can be found at the Diagnostic connector drivers side of
engine and on the 4.7L V8 engine, you can use the BLACK/BLUE wire at coil #1 on the
Drivers side. (AC)
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