P0307 — Cylinder 7 misfire detected

Code P0307 is a standard OBD-II diagnostic trouble code: Cylinder 7 misfire detected.

In our record, P0307 is reported most often on GMC, Chevrolet and Dodge vehicles , against engine and powertrain failure patterns , across 2006–2020 model years. GMC alone accounts for 60% of them.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P0307 across 5 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report P0307 5 patterns

2020 GMC Sierra

powertrain — Engine Lifter / Camshaft Failure

2018 GMC Sierra

engine — AFM Lifter Failure

2015 GMC Sierra

engine — AFM/Lifter Failure

2008 Chevrolet Avalanche

engine — Valve lifter failure with AFM system malfunction

2006 Dodge Ram 1500

powertrain — Engine Misfire & Rough Idle in Rain; Stalling

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →