What makes the tach drop to zero while still moving?

1988 JEEP WRANGLER
17,100 MILES
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KKKATE
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  • 1 POST
At any speed the tach will go flat to zero, the car will lurch, then backfire then stall. Cannot be restarted. It has a rebuilt engine, trans, and carb. The problem is NOT the ignition coil or module. It is NOT the EGR valve, distr cap rotor or pickup. It is NOT the fuel filter, plugs or wires. Any othe rideas?
Apr 6, 2012 at 5:19 PM
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FIXITMR
  • ✓ASE Certified Mechanic
  • 9,990 POSTS
  • ASE Certified Mechanic
what motor? could be pickup coil/cam sensor in distributor.
Apr 6, 2012 at 5:47 PM
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