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Where is the tachometer wire on a 1996 Ford Windstar GL?

There isn't a single "tachometer wire" in the traditional sense on a 1996 Ford Windstar GL, or most modern vehicles for that matter. The signal for the tachometer comes from the PCM (Powertrain Control Module) which uses a sensor signal (typically from the crankshaft position sensor or camshaft position sensor) to determine engine speed. The PCM then sends a signal to the instrument cluster which drives the tachometer.

Therefore, you won't find a wire specifically labeled "tachometer." To get a tachometer signal, you'll need to either:

* Use an existing signal from the PCM: This requires tapping into the PCM's output. This is the most accurate method but requires specialized knowledge and equipment (a scan tool to identify the correct wire and its signal), and potentially specialized connectors. Incorrectly connecting to the PCM could damage the vehicle's computer.

* Use a signal from the ignition system: Some aftermarket tachometers can be wired to a coil wire or other ignition component. This is generally less precise than using the PCM signal. Finding the correct coil wire requires careful identification to avoid damaging the ignition system. This method is also more prone to electrical noise.

In short, you should consult a wiring diagram specifically for your 1996 Ford Windstar GL. A wiring diagram will show you the pinouts of the PCM and potentially other relevant components. These diagrams are available online (sometimes for a fee) or from automotive repair manuals. Without a wiring diagram, attempting to connect to the PCM is risky.

Without proper knowledge and equipment, this is best left to a qualified mechanic. Incorrectly wiring a tachometer can damage your vehicle's electronics.

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