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Tachometer Issue

I recently purchased a 93 Mustang GT. The tachometer is at 0 when I turn the key on. After I start the engine, it is normal, at about 900 rpms, and after

5 seconds it moves up to 3500 rpms. It stays there unless I rev the engine past 3.5k or if i use my power windows, hazzards, A/C, etc. It jumps around erratically when turning pretty much anything electronic off or on.

Anyone know what might be going on here? I'd be greatfull for any help you could give.

Thanks, Moostang

Reply to
Moostang
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Moostang opined in news: snipped-for-privacy@corp.supernews.com:

Not uncommon... there's a component failure in the tach.

About the only practical thing to do is get a cluster from the scrapyard, and swap out the tach assy.

Reply to
Backyard Mechanic

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