Bad Coil Pack Symptoms:
How to Spot & Fix Ignition Problems
e-Car Head Office
5 Star Graded Workshop
Learn the signs of a bad coil pack, how it affects your engine, and when to replace it. Book diagnostics today with an e-Car approved workshop near you.
Bad Coil Pack Symptoms:
How to Spot & Fix Ignition Problems
e-Car Head Office
Schedule an inspection appointment for your Coil Pack Today
Think your coil pack might be faulty? Click on one of the buttons below to book a diagnostic check with your nearest e-Car approved garage.
Coil Packs Explained
What is a Coil Pack?
A coil pack is part of your car’s ignition system. It transforms battery voltage into the high-voltage spark needed to ignite the fuel-air mixture in your engine. Many modern cars use coil packs instead of a single ignition coil for improved efficiency and reliability.
Symptoms of a Bad Coil Pack
If your coil pack is failing, you may notice:
Engine misfires – the engine runs unevenly, especially when accelerating.
Rough idling – the car shakes or vibrates when stopped.
Poor fuel economy – burning extra fuel to compensate for weak sparks.
Difficulty starting – longer crank times or repeated attempts to start.
Check engine light – often triggered by misfire codes (P0300, P0301, etc.).
👉 If you’re noticing these issues, your coil pack could be on its way out.
Coil Pack vs Ignition Coil
Ignition Coil: Single coil, typically used on older vehicles.
Coil Pack: A group of multiple coils, usually one per cylinder, used in modern vehicles for better efficiency and reliability.
Is it Safe to Drive with a Bad Coil Pack?
Driving with a faulty coil pack is risky. Your car may still run, but:
You’ll waste fuel.
You could damage the catalytic converter.
Misfires can cause long-term engine damage.
👉 It’s best to have it checked as soon as possible.
Coil Pack Replacement Cost
Replacement costs vary depending on your vehicle, but typically range between R2500 – R6000 including parts and labour. Delaying repairs could lead to far more expensive fixes.
When to See a Professional
If you notice misfires, poor performance, or a glowing check engine light, don’t ignore it. A certified technician can:
Test the coil pack
Scan for fault codes
Replace the faulty part if needed
🔧 Think your coil pack may be faulty? Find a Workshop near you today and book a diagnostic check with an e-Car approved garage.
📌 FAQ Section
Is it safe to drive with a bad coil pack?
Driving is possible, but it risks further engine damage and higher repair costs.
What’s the difference between a coil pack and an ignition coil?
An ignition coil is a single unit; a coil pack contains multiple coils, one per cylinder.
How long does a coil pack last?
Typically 5–7 years, but heat and vibration can shorten its lifespan.
Can I replace a coil pack myself?
It’s possible with basic tools, but professional fitting ensures the problem is correctly diagnosed and fixed.
Approvals & accreditations
Trust
e-CAR is accredited with RMI, MIWAÂ approvals, and Right 2 Repair Supporter in SA for top-quality vehicle servicing and workmanship that meets industry standards.
