2006 Chevrolet P0302: What It Means & Is It Safe to Drive?
P0302 on the 2006 Chevrolet: Cylinder 2 Misfire Detected. Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
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What this code means
The PCM has detected a misfire on cylinder 2. Same logic as P0301, but for a different cylinder.
Common causes on the 2006 Chevrolet
- Worn or fouled spark plug on cylinder 2
- Failing ignition coil
- Leaking or clogged fuel injector
- Low compression on cylinder 2
Symptoms
- Check Engine Light
- Noticeable shaking, especially at idle
- Loss of power or hesitation
Typical fixes
- Replace spark plug/coil on cylinder 2
- Clean or replace injector
- Address internal engine problems if compression is low
Repair cost range
For a 2006 Chevrolet, repairs for P0302 typically fall between $150 and $900, depending on the root cause and labor rates in your area.
Known issues on Chevrolet
On GM 5.3L V8, cylinder 2 is a non-AFM cylinder, so P0302 usually points to a coil or plug rather than a lifter issue. On 3.4L V6 Equinox, intake manifold gasket failure between cylinders 2 and 3 is a common misfire cause—check coolant level and look for a sweet smell at idle.
Most commonly affected models
Silverado 5.3L 2007–2014Equinox 3.4L 2005–2009TrailBlazer 4.2L 2002–2009