JD 5425 tach problem

/ JD 5425 tach problem #1  

duckduke

Member
Joined
Nov 7, 2017
Messages
30
Location
Ethel
Tractor
Ford 5900
Status is when I start tractor..... idle RPM=0. If i rev throttle the RPM starts going up but maxis out at 12-1500 RPM. Other wise runs well and everything is working fine.... Just RPM is not registering correctly.

I figured it had t b the tach/RPM sensor. Put a new sensor on ($40) ..... Same thing.... No change.

I spent 3-4 hours today cleaning wire connections and grounds. Same thing .... No change.

A little baffled. Any comments would b appreciated. Thanks!!
 

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