- It is recommended to disconnect the negative battery when replacing the ignition coils.
- If the old ignition coils don't come out, try twisting the coil as you pull it out.
- Take pictures before you remove the coils. You can move coils around but the electrical connectors cannot be moved from one cylinder to another.
Acura Ignition Coil Replacement Guide
Updated Friday Feb 23, 2018
Changing the ignition coil on Acura vehicles is not as difficult as you may think. The four-cylinder Acura engine is very easy to work on and you can change the ignition coils yourself in less than one hour. The 3.5L V6 Acura engine requires slightly more time. This guide includes instruction on how to change Acura ignition coils on models such as MDX, NSX, RDX, RL RLX, RSX, SLX, TL TLX, ZDX, CDX, CL, VSX, EL, ILX, Integra, Legend . To change all Acura coils at the local Acura dealer or auto repair shop it costs anywhere from $400-$600. Doing this job yourself typically costs about $100-$150, in some cases even less.
The most common symptom that you have a bad ignition coil is Acura check engine light coming on and engine misfire. While you can change ONLY the defective coil, it is recommended to change all coils at one. If you are in tight budget replace only the bad coil but keep in mind that another coil may fail a few months down the road.
- Check Engine Light On
- Engine Misfiring
- Catalytic Converter Glowing Red
- Rough Idle
- Loss of power
- Car will not start or dies at idle
What you will need
Acura ignition coils can be purchased online, at your local Acura dealer or local auto parts store. Below we have provided a link where you can check the price and buy Acura ignition coil.
Changing Acura ignition coils is a very simple job that you can perform yourself.
Step 1: Park Vehicle
Park you ACURA on a level ground. To avoid getting burned, allow the engine to cool down before you start replacing Acura ignition coils.
Step 2: Open Hood
Pull the hood release located under the dashboard (driver's side) of your Acura.
Step 3: Disconnect Negative
To avoid electrical problems we need to disconnect the negative battery terminal on your Acura. The cable you need to disconnect is the black cable. The battery post that will be disconnected will either have the minus (-) symbol or the words NEG, NEGATIVE printed. The positive (RED) cable can remain connected.
Watch video to learn how to perform this step.
Step 4: Remove Engine Cover
Remove the engine cover. In most ACURA the engine cover can be removed simply by pulling it up. Remove any 10mm bolts that you see on top of the engine cover.
Step 5: Disconnect Ignition Coil
Unplug the electrical connector from the ignition coil. Press the small tab then pull. Repeat this step for all coils.
Ignition coil on Acura TL.
Ignition coil on Acura TLX.
Step 6: Remove Bolt
Remove the 10mm bolts that secure the igntion coil in place.
Step 7: Remove Ignition Coil
Remove ignition coil from the engine block. It may be difficult to pull out the coil. If that is the case try twisting the coil as you pull it out.
Step 8: Install new ignition coil
Install new ignition coils on your ACURA engine. It is recommended to apply dielectric grease to the boot whenever possible.
Step 9: Reinstall Engine Cover
Reinstall engine cover. Connect the negative terminal and start the car.