2008 Pontiac P0302: What It Means & Is It Safe to Drive?
P0302 on the 2008 Pontiac: 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 2008 Pontiac
- 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 2008 Pontiac, repairs for P0302 typically fall between $150 and $900, depending on the root cause and labor rates in your area.
Known issues on Pontiac
Pontiac G6 and Montana 3.5L V6 P0302 is typically a failed COP coil. These engines share the same platform as Chevrolet Impala and Colorado. On the 3.4L Torrent, intake manifold gasket failure between cylinders 2 and 3 is a common misfire cause—check coolant level.
Most commonly affected models
G6 3.5L/3.9L V6 2006–2010Montana 3.5L 2005–2008Torrent 3.4L 2006–2009