What Causes a Bad Ignition Coil? How to Longer Ignition Coil Pack Lifetime?
Posted by Candy Lai on
How to test ignition coil pack?
How do I review ignition coil lifespan or ignition coil life?
What is the ignition coil life expectancy?
How much cost a ignition pack?
How long can coil pack lifespan be used?
How long do ignition coils and mercedes ignition coils last?
What causes ignition coils to keep going bad?
IGNITION COIL FAILURE REASONS
Average lifetime of ignition coil is around 100,000 miles or more.
It is not an easy worn out replacement car part but still could fail for variety of reasons.
#1. Coil insulation worn out due to aging.
#2. Coil's winding damaged with Heat & Vibration.
#3. Cheap quality ignition module overloads to cause coil circuitry damage during internal arcing.
#4. Moisture Intrusion
Difficult to imagine? Here are the reasons.
Ignition coil & spark plugs are mounted in the tube positioned in the valve cover. The seal between coil tube and valve cover can fail overtime, then caused oil leakage around coil & spark plugs. Be sure the gasket sit well and work properly can prevent coil failure reoccur.
Also, for some rare cases, A/C is built up above and water may drip directly onto coils. So some high-end coils may be applied one layer marine-grade grease to give better seal between terminal nuts.
#5. Spark Plug Gap
Malfunction coil could be caused with gaping spark plug and leaking valve cover. Carbon accumulation will lead to excessive gap spark plugs which should be replaced along with ignition coils to prevent further problems.You'll be very surprised that how high possibility is the major reasons to cause ignition coil failure are #4 & #5.
LONGER COIL PACK LIFETIME
#1- Keep coils away from humidity & high heat
#2- Do not let ignition switch on without starting engine.
#3- Constantly check and clean connector, plugs & wire to prevent circuit shortcut.
#4- If coils got any wet, use cloth to dry it instead of using Fire as it may damage the coils in structure.
Read More:
<When to replace Ignition Coil and how much does it cost>
<Ignition Coil Symptoms of Saab 9-3 Bad Coil Packs & Tips to Find Out Broken One>
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