I did a quick read of this thread and "the letter" cited seems to refer to a class action lawsuit.

Unless I missed something, my letter may be different. It is from Honda and is titled "Warranty Extension: Engine misfire due to carbon Fouling of spark plugs."..."CAMPAIGN: L92"

"As a proactive measure..."

"On certain Honda vehicles equipped with V6 engines with VCM, the cycling of the cylinder under certain drive conditions allows for spark plug cooling, which may result in carbon fouling of the spark plugs. When the fouling process becomes severe, the MIL light will come on, and one or more diagnostic trouble codes (DTC P0301, P03032, P0303 or P0304) will be stored in the vehicle's Powertrain Control Module."

"To ensure customer confidence..." (Warranty extension on carbon fouled plugs to 8 years with no mileage limit).

"No action is required unless you experience a problem. If the MIL comes on, contact your Honda dealer...."

Did anyone else receive the above letter?

Gary

I received the same letter. So far no major problems with my 2021 EXL other than the annoying vibration in ECO mode.

 

i received the same letter. So far no major problems with my 2021 exl other than the annoying vibration in eco mode.

2012

 

It's true in Canada

I received the letter from Honda Canada stating that I had additional warranty to 8 years on the issue. Thought I would chime in.

 

2012 pilot, <30K miles - water leaks, misfiring

Took my Pilot to the dealership because I was getting a small puddle of water in my floorboard carpet. Noticed it about a year ago, then kind of forgot about it, then noticed it again this winter. The stock floor mat, and then the all-weather rubber floor mat I have on top of that was doing a great job of hiding it. Wasn’t sure if it was from a window being down, or tracking the water in on shoes/boots or what. Then I noticed some staining in the carpet pad, and looking online, it appears that this is a prevalent issue. Took it in, and they found a 1.5” hole in a seam at the base of the front left pillar which should have been sealed with foam, and then topped with another sealant. Apparently the line worker missed it and it was wide open for road spray to enter the cabin. So they fixed it under warranty and cleaned stuff up for the most part.

Just a few days after that, I notice that when at idle the engine has a sort of vibration that comes and goes, almost like the timing is very slightly off.

Then, two weeks after I had the Pilot in for the original water issue, I get three warning lights on my way to work. A Check Engine light, a Check VSA System light (vehicle stability assist), and VTM-4 light (Variable Torque Management). Seeing the VTM light kick on at 50mph freaked me out - didn't need coffee that morning!

Took it in, they replaced the plugs because #3 in particular was misfiring. I asked what would cause plug fouling at 28K miles on a system where you change them every 105K miles? The service manager said he didn’t know. So reading the repair invoice, I read “fault P303, checked sys and service bulletins found bulletin 13-082”. Looked these up, and I must say this issue is new to me......I never received any mailing on this, and I find it hard to believe the service manager didn't have any insight (no pun intended) into this issue. I was never told about an extended warranty that might kick in.

The reason I'm posting this is to make sure folks are aware of these potential issues (water, plugs), even with 2012 models or above! Also a question: The service statement I got says that they "reprogrammed the ECU" - does that mean they just cleared the errors, or is there a code change to the control module to address what would seem to be something that can only be fixed with physical modification (ring replacement)?

 

I just bought my 2010 Pilot 3 months ago, used, does this warranty extend to me? Last night I had these same misfire, trouble lights issue.

 

Sign into Honda owner link (have your vin handy).
Recall info etc is posted there

 

Just FYI: This warranty extension is only for 3 spark plugs and the software update. Nothing else. I had to pay for the other 3 plugs and cleaning the fuel injectors.

 

I'm a little lost on all this. I have a 2013 touring. At just 11,000 they had to replace the egr. They said there was a service note on it. Does this have anything to do with the lawsuit? I haven't received a letter (yet). Thanks

 

Mine's going in Saturday for misfire problems. Service advisor was very informed on the issue and brought up warranty extensions without me asking. She said it should all be covered and could be as extensive as replacing pistons and/or rings. I can't believe it has to go back in for work like this. I just got it back a month ago after having the front cam and cylinder #4 rocker arm replaced. I'm starting to really lose faith in this car.

 

I feel your pain!

2014 with less than 10,000 miles.

Switching to Toyota ASAP.

Will never buy another Honda after this experience.

 

First time Honda owner but this seems like deja vu spelled differently all over again. Just a thought....are the fouled plugs on the cylinders that are deactivated?????

Whether Honda's VCM or GM's AFM, if not properly implemented the idea of deactivating half the cylinders is a potential problem. Early post '07 GM's 5.3l would normally begin to burn over a qt. every 1K once over 60K on the odo.....however, my '07 at 80K would burn less than a thimble full between changes.

I blame the condition of the oil, aggravated by these "engine killer" oil life meters as contributors to the problem. I always change the oil and filter every 3K using Mobil 1 of the proper viscosity and the OEM brand filter, usually at 68% on the OLM. At worst I change it too often and make the recycling center happy, but at best I'm saving the engine. Oil life meters, to me, are nothing more than a way to promote that their new vehicles require less frequent changes and thus lower maintenance costs, save oil and energy, blah, blah, blah.....not to mention providing an advantage to new car dealers who provide free routine maintenance costs during the warranty period.

See if this sounds familiar.....excess particulates in the oil clog the lower oil control ring set, in particular the spacer between the upper and lower oil rings cruds up, the ring set can no longer flex to scrape oil off the cylinder wall properly, and the frozen ring set aggravated by the loss of lubricity in the old 7K+ oil blessed by the OLM, but in reality degraded by heat and shear forces, wears abnormally and then passes oil past the upper compression rings into the combustion chamber for burning...problem is aggravated in the deactivated cylinders which cannot burn off the ever increasing oil residue during deactivation periods..result is overload/freezing of the oil rings, oil fouling of the plugs and misfires in one or more of the deactivated cylinders.....GM employs a fix where they try to chemically free up the rings, but failing that they have had to replace pistons under warranty.

There's a firm, Range Technology, that manufactures a device that plugs into the vehicle's diagnostic connector that prevents the AFM from deactivating cylinders.....once removed the effect is reversible and it leaves no detectable fingerprint in the vehicle's ECM computer.

 

...

There's a firm, Range Technology, that manufactures a device that plugs into the vehicle's diagnostic connector that prevents the AFM from deactivating cylinders.....once removed the effect is reversible and it leaves no detectable fingerprint in the vehicle's ECM computer.

Great post! I had my hopes up there about this Range Technology product but it looks like it only works for GM vehicles, is that right? This is exactly what some of us Pilot owners want in order to run all 6 all the time.

 

Just so you guys know the cylinder numbering system: