✅ Fixed
Replaced all spark plugs with NGK iridium plugs. One coil pack was also weak — replaced. Smooth idle restored immediately.
Chevrolet Suburban 2014 P0300 random misfire rough idle
2014
P0300
Safe to Drive?
⚠️ Drive with Caution
Urgency Level
🟠 Fix Soon
Chevrolet Suburban 2014 P0300 random misfire detected. Engine shaking at idle. Check engine light on. 118802 km. This fault code is stored when the engine control unit detects a specific fault condition. Common causes include sensor failures, wiring faults, and component wear. Always read additional fault codes before replacing parts — multiple codes together provide a clearer diagnosis. Clear the code after repair and test drive to confirm the fault does not return.
🔍 Symptoms
📍 Chevrolet Suburban
⚠️ P0300 fault code
⚙️ Possible Causes
Fault code P0300 detected
Chevrolet Suburban
Possible: Replaced all spark plugs with NGK iridium plugs. One coil pack was also weak — replaced. Smooth idle restored immediately.
Onarım / Çözüm
Based on 134 driver confirmations
🧾 Driver Reports
Deneyiminizi paylaşarak diğer araç sahiplerine yardım edin.
Your real-world fix helps thousands of drivers worldwide. Takes 2 minutes.