Quote:
Originally Posted by 82Stang
Once my tach got to halfway, it automatically went all the way to the right, meaning it only needed a spark to get just past the halfway point, and it would go all the way due to the way it is springed inside.
...failing battery or alt, or bad grounds, or bcm.
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Thanks.
That sounds like what I'm experiencing. There was (and has been) a lot of wetness, condensation, and melting ice. It's spring now, and when I purchased the vehicle, it had been sitting in a yard all winter without being operated or driven. The tach is indeed sprung all the way to the right.
On my Dodge Dakota's instrument panel, the hole in the plastic window for the trip odometer reset is close enough to the tachometer I should be able to insert a paperclip or something bent to the right shape in there and reset the tach needle as you suggested.
I suspect a water leak. In fact my windshield is cracked and coming unglued at the bottom. If it is letting in water, that could be part of the problem. I need to poke around a junkyard. Might be a wrecked Dakota with a good windshield.
I've never done glass before, but otherwise it's expensive.