Suuperman Posted August 13, 2010 Share Posted August 13, 2010 My 4 bngr MJ has the dummy light gauges pod. I got a full cluster from the junkyard yesterday but from a 6 cyl jeep. I have swapped from 6 cyl to 6 cyl with no trouble in the past. What will I need to do to make the gauges work on the 4 cyl MJ? I know it's a 'bolt' in procedure but ovbiously the senders are different as is the 4 cyl vs 6 cyl wiring harness. :D Link to comment Share on other sites More sharing options...
Eagle Posted August 13, 2010 Share Posted August 13, 2010 If the new cluster is from an '88, '89 or '90, there is a small potentiometer next to the tach on the cluster. Looks like a little plastic car with a '+' in it. The '+' is for a Phillips screwdriver. Use that to calibrate the tach. You probably should have a known-good idle tach to verify the calibration. Link to comment Share on other sites More sharing options...
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