Car Computers and Sensors
Starters and Ignition Systems
Chevy Blazer S-10

Why on a 1991 Chevrolet S10 Blazer will it only run if you disconnect the Electronic Spark Timing wire?


Wiki User

There is a problem in the distributor. Either the pickup coil or the ignition module are defective. It may be cheaper to purchase a remanufactured distributor.