P0300 on Chevrolet Equinox
Random/Multiple Cylinder Misfire Detected
Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Chevrolet Equinox context without treating complaints as confirmed diagnoses.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
- SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for P0300.
- NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What P0300 Means on Your Chevrolet Equinox
P0300 is a diagnostic trouble code indicating: Random/Multiple Cylinder Misfire Detected. This code relates to the ignition system system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real Chevrolet Equinox Owner Reports
Source: NHTSA Complaints Database
"Code p0300- cylinder #4 misfire, extreme blow by from internal failure."
"At 58569 miles the engine light was on. the catalytic converter, gasket, and nut were replaced. i began complaining about oil consumption at 72388 miles. at 77313, the engine light was flashing. the dealer got the code p0300. there was a misfire in cylinder #2."
"My equinox engine light came up while driving in the highway, i hear a noise in the engine every time i accelerate, and the truck would shake a bit, put the suv in the machine and got a p0300 code for misfire, the coils and sparkplugs where loose and out of place for the second time in less than sev"
"Codes p2227 and code p0299 are coming up machine says this is a known issue with 2021 to 2023 Chevy equinox and there is a lot of water in intake and engine is in limp mode 1."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on Chevrolet Equinox
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.