1990 mazda b2200 bouncing tach needle

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02-04-2022 | 12:29 PM

s45607e

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Joined: Apr 2021

Posts: 18

From: VA

1990 mazda b2200 bouncing tach needle

I have a bouncing tach /rpm gauge on my 1990 B2200 while idling. I've changed wires and plugs, ignition coil. It idles ok but when I put it in drive it shuts down. Any suggestions?

02-05-2022 | 07:22 AM

Cusser

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Joined: Mar 2007

Posts: 1,117

From: Arizona

Is yours an automatic? If so, check vacuum line from intake manifold to the transmission, as well as your other vacuum lines.

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