General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

Bad Tach?

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Old Apr 4, 2011
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dmunchp2d's Avatar
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From: Berkeley Springs, WV
Bad Tach?

Someone help me here. I'm driving my 94 4 banger down the road, and the Tach drops to abot 500 RPM. Thing is, nothing changes in the engine, and I don't lose speed. When the tach drops, it kicks off the check engine light. After a while, the tack jumps back to normal and the light goes off. Anybody?
 
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