1997 Jeep Laredo help

1997 JEEP GRAND CHEROKEE LAREDO
4,600 MILES • 4.0L • 6 CYL • 2WD • AUTOMATIC
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JIMMYDHALL13
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  • 1 POST
There is a miss in this vechiel an I tried everything new disturber ,cap and button the rpm gauge starts bouncing when it stars missing what could it be
May 23, 2015 at 8:31 PM
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CARADIODOC
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  • 34,308 POSTS
The tach is giving you the clue that you're losing the signal from the crankshaft position sensor or the camshaft position sensor. If no diagnostic fault code has set yet related to one of them, you'll need a scanner to view live data to see which one is losing the signal.
May 23, 2015 at 9:40 PM