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My tachometer is whacked out,any one know where the sensor is located?

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Posted (edited)

Clean your flywheel housing sensor. They tend to pick up clutch metal on magnetic tip.

Edited by Mack Technician
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E7 ? Left Side near starter   ! V8 right side  bottom!  flwheel housing

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my CL tach does some funky shit sometimes too. like id me at a set MPH on the highway and the RPM will start to jump around but it does sound like the motor is raising its rpm speed as well. but its does it fast. not sure what it is. doesnt anyways do it. never could understand or come to idea what would do it. 

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22 minutes ago, 2000CL713 said:

my CL tach does some funky shit sometimes too. like id me at a set MPH on the highway and the RPM will start to jump around but it does sound like the motor is raising its rpm speed as well. but its does it fast. not sure what it is. doesnt anyways do it. never could understand or come to idea what would do it. 

Swap in a known-good tach head.

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8 minutes ago, Mack Technician said:

Swap in a known-good tach head.

dont have one at the moment to swap in but its something i thought of doing yet i dont think that will do anything really since it seems like the motor itself is raising in sound as well when the rpms start to jump around. its done it for years. 

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10 hours ago, Mack Technician said:

Clean you flywheel housing sensor. They tend to pick up clutch metal on magnetic tip.

It's a 96,would it have one?

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7 hours ago, fjh said:

E7 ? Left Side near starter   ! V8 right side  bottom!  flwheel housing

Thanks..

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