Compression test
11-19-2009, 10:48 AM
#1
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Model: Cherokee
Compression test
Where should I kill power to the coil in order to do a compression test? Pull off the wire to the distributer from the coil? Or the little snap connector going to the coil? 1997 4.0. Thanks. ---Rich
11-19-2009, 11:14 AM
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Year: 89
Model: Cherokee
Engine: 4.0
Just pull the wire from the coil,I read your other post also and if your looking for the knock keep one thing in mind,you can have good compression and still have a bad bearing,you would need to actually inspect the bearings to determine that. I would inspect the flexplate first for cracks.
Last edited by Abovetimberline; 11-19-2009 at 11:36 AM.
11-19-2009, 01:13 PM
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Year: 1988 limited
Model: Cherokee
Engine: 4.0 litre
Because with the connector on you are producing high voltage in the coil, and we know all how easy it is to lose a screwdriver somewhere and throw a hand in there.... BBZZZZZ!!
Last edited by fantic238; 11-20-2009 at 01:55 AM. Reason: grammar
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