My RDX 2015 with 85K miles on it still has the original coil packs. I do not have any misfire or any issues but as a preventive maintenance I am thinking to replace them all. Is that a good idea or wait until they are shot? Thanks.

 

if they are still operating correctly, it would be a waste of money to buy a whole new set...

only replace if they are not working correctly.

 

I already have 6 new NTK coils. But I would say you should not wait until one is failed in the middle of the road or trip. That's what is called preventive maintenance. I think usually OEM packs installed at factory should last about 100K under normal driving conditions. But given there is already 85K on the odo then I am hesitant to take the risk.

Just wanted to know whether other people on the forum have had issues with bad coils around the same mileage.

 

you will still be able to drive with a bad coilpack... they dont all go at once.

Most people replace coilpacks when they die.... I have 100k miles on my 2006 TL and have never changed my coil packs..
also, OEM is the way to go...
aftermarket coilpacks will throw codes.

 

Yes you can drive some distance but not long. The car start shaking if coils die. The OEM coils are very expensive. I always use NGK and NTK sparkplugs and coils and never had any issues with them. So, I may wait until like 100K miles and then replace them.

 

In that case, it would be best to install a trailer hitch and cart a trailer along with all the spares if you are that worried.

Sort of reminds me of batteries. People replace them far too soon out of "fear". Look, it is not an aircraft where a wing is about to come off. The original batteries in our last two cars were 16 and 14 years old when the cars were sold. Most people would have replaced them twice already.

And besides, this is a Honda, not a vehicle from the big-three.

 

Waste of time and money in my opinion. Coils are one of those parts that are typically replaced when failing or have failed.

 

I'm all for preventative maintenance but i have to agree here Spark plugs can go bad but coils last either forever or they die prematurely and at that point, you can replace then; no need to do it ahead of time.

 

We had a coil pack die on our old 2005 RL. My wife was driving, and drove it approx 100 miles home. As a result of unburned fuel flowing through one cylinder, it killed a catalytic converter, which is part of the manifold. So, run it till one dies, but be prepared to stop driving when you get the misfire code. A couple of plug anti foulers on the downstream O2 sensor kept the check emmissions light off. Fortunately Jesse the Body killed auto inspections in MN.

 

You can always pull the FI harness off the dead cylinder if the design lets you.

 

Yeah. Wasn’t gonna happen with wife driving it.

 

That's what I'm referring to here as preventive maintenance. You can wait until it happens but if you are in the middle of trip then you must either tow the car or being stranded. What if it happens in the middle of night and no stores are open to buy a coil.

So with all these stories, I can wait until 100K miles and then replace them but I am hesitant to wait forever.

 

Coil pack failure is very uncommon. You would be far better off muzzling the VCM and keeping an eye on the spark plugs.

 

For peace of mind I purchased a new coil pack and keep it in my car along with my code reader, just in case. Doesn't take bit of time to replace one and if one goes south, I'll purchase another to have when traveling,,they are cheaper that replacing
a cat anyday.