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Old 03-29-2008, 04:40 AM   #1 (permalink)
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Question How to hook up tach?

I have a 97 f150 witg the 4.2 2wd. I am wanting to hook up an aftermarket tach. but need some help. The directions say to hook one wire to the white wire with a pink stripe from the power control module. It should be on the pass. side of the truck. I looked under the hood but can't find the wire. Where is the PCM? There is one huge cluster of wires on the fire wall on that side and I looked for the wire they told me to but I couldn't find it. Am I looking in the wronge spot?
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Old 03-29-2008, 06:28 AM   #2 (permalink)
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try asking over at v6f150.com. Bunch of guys specialized in the 4.2L F-150's. Mostly racing guys, but they know what they're talking about
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Old 03-29-2008, 07:48 PM   #3 (permalink)
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the huge wire you speak off is the ECM plug - the wires are outside the cab - the ecm is under the pass kick panel - it is around 1.5" x6x7


but i dont know which wire it is -
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Old 03-29-2008, 07:56 PM   #4 (permalink)
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Quote:
Originally Posted by mcleod View Post
I have a 97 f150 witg the 4.2 2wd. I am wanting to hook up an aftermarket tach. but need some help. The directions say to hook one wire to the white wire with a pink stripe from the power control module. It should be on the pass. side of the truck. I looked under the hood but can't find the wire. Where is the PCM? There is one huge cluster of wires on the fire wall on that side and I looked for the wire they told me to but I couldn't find it. Am I looking in the wronge spot?

the word "wrong" does not contain the letter E.
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Old 03-30-2008, 08:11 AM   #5 (permalink)
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How much longer before one of the flamers comes along?
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