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P0353 affects coil C - typically cylinder 3. Ford Expedition and Chevy Suburban owners with high mileage frequently encounter this code. A fouled spark plug is a common hidden cause that destroys the new coil if not replaced simultaneously. See top-rated scanners on Amazon ↗
🗺️ Where Is the Problem?
Blueprint view - P0353 Ignition Coil C primary/secondary circuit fault
These are statistical causes across ALL vehicles - your exact car may rank differently
For example, on a Honda 4-cyl the downstream O2 sensor causes P0353 64% of the time, but on a GM 5.3L V8 the catalytic converter is the cause 71% of the time. Get a probability ranking built specifically for your year, make, model, and mileage.
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🎯 Top Causes & Probability
55%
#1 - Most Likely
Failed Ignition Coil C
Coil C primary or secondary winding failure from heat cycling. Swap to an adjacent cylinder to confirm before replacing.
🔩 Part
$20–$100
👨🔧 Labor
$30–$100
⚡ DIY Difficulty
Easy
25%
#2 - Check First
Wiring Damage Coil C Circuit
Damaged or shorted wiring in the coil C circuit. Heat and vibration near cylinder 3 accelerate insulation breakdown.
🔩 Part
$20–$80
👨🔧 Labor
$50–$150
⚡ DIY Difficulty
Medium
12%
#3 - Less Common
Fouled Spark Plug Causing Coil Failure
A badly fouled or cracked plug forces excessive voltage, burning out the secondary winding. Always replace both coil and spark plug.
🔩 Part
$5–$30
👨🔧 Labor
$0–$80
⚡ DIY Difficulty
Easy
8%
#4 -
PCM Driver Failure
PCM coil driver circuit failed. Rare. Rule out coil, plug, and wiring first.
🔩 Part
$200–$800
👨🔧 Labor
$100–$300
⚡ DIY Difficulty
Hard
🚗 Most Affected Vehicles
🔧 Step-by-Step Diagnosis
- Swap Coil to Confirm Fault - Move the suspect coil to an adjacent cylinder. Clear codes and drive. If the misfire code moves to that cylinder, the coil is confirmed bad. This costs nothing and prevents unnecessary parts purchases.
- Inspect Coil and Spark Plug - Remove the coil and check the boot for carbon tracks or cracks. Check the spark plug for excessive gap, cracking, or oil fouling. A damaged plug can destroy a new coil - replace both together.
📍 Find a Trusted Shop Near You
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Tips for Choosing a Shop
- Ask if they charge a diagnostic fee and whether it applies toward the repair
- Request a written estimate before approving any work
- Ask specifically about the part brand - OEM vs. aftermarket matters for this code
- Check Google reviews for recent mentions of the specific repair you need