09 Cobalt keep getting misfire code for cylinder #1. Changed plugs and coil. Still get code. Whats next?
For the past year I keep getting code for misfire on cylinder #1 I've changed the plugs and coil. Even swapped coils from other cylinders. Still get misfire for #1.
Some things to look at and eliminate as a potental problem. Wiring to the coil(spark), Fuel Injector (no fuel), or the cylinder itself (compression and leakdown test). You or your mechanic will need to perform some tests to determine which is at fault.
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