Wow finally that's why I always hated Honda I always preferred Mazda they use bucket shims still good at 200k+ miles you can just swap them out

what was the compression of the misfiring cylinder?

amazon! $25

Question for you. I have a 09 mdx mis fire on 3,5,6. I did the spark plugs and the coils for all. The misfire is still present along with “check emission system” and check sh-AWD system”. Unfortunately my Honda dealer has not been helpful. They wanted me to change the timing belt and then check the spark plugs. Which I just did. Is it possible this is balance adjustment? I booked in for an adjustment tomorrow shot in the dark just hoping this will resolve the issue. Any info would be greatly appreciated! Thanks!

@@cooperbell3420 could be your valve adjustment if I had to make a guess but I really wouldn’t know unless the car was I front of me

​@@cooperbell34203-5-6 misfire is usually a valve adjustment issue.

👍. 98 Prelude 255k.

👍👍

No valve adjustment?

08 pilot with 274k

@@HighMileageOffroad Have you ever had a valve adjustment on your ridgeline?

Honda changed their recommendation for newer vehicles.

@@jptrainor No, they didn't. I don't know why everyone thinks this. This is taken right from the 2017 Honda Pilot owner's manual: Maintenance Minder item 4 is "Replace spark plugs, Replace timing belt & inspect water pump, Inspect Valve Clearance." Maintenance Sub Item 4 comes up at right around 105K miles, so inspecting valve clearances is part of that maintenance sub item with the timing belt and spark plug job. At the top of the page it says "Adjust the valves during services A, B, 1, 2, or 3 if they are noisy" which just means to take care of them at any oil change or service visit if they are noisy. They still are supposed to be inspected (and presumably adjusted if found out of spec) at the same time as timing belt/water pump/spark plugs. Having checked many at 105K I've found very few out of spec at 105K but have found plenty out of spec at 150K. By 200K they can still be quiet but it's not uncommon to have unexplained misfires and rough running engine due to tight exhaust valves. I've seen it several times. Regardless, it's part of Maintenance Minder Sub item 4, every 105K, to check/inspect the valve clearances.

@@johnaclark1 There's been a more recent change to the service recommendation AFAIK.

@@jptrainor No, it's still exactly the same up to at least 2022.

@@johnaclark1 *recent* ... They're not going to (indeed, cannot) change the maintenance minder schedule for millions of shipped vehicles. There's plenty of talk, however, of the official Honda recommendation having changed.

Most likely, it's pretty common. If it's over a 100k miles it needs to be done anyway. In my experience it's always wise to check into general maintenance after buying used vehicle yourself. Keep records so you know whats been done and when. If they say something has been done more often the not you'll find out their cousin Jett did it. Or a shop who pays mechanics by the job, not the hour.

The rear harness stayed in place for mine. I unclipped a few harness clamps to give it some slack, that's all. That's was the service manual procedure. I don't know what this vehicle was but it was obviously totally clear. I've seen quite a few videos and it seems to vary, but most typically the rear harness remains in place but is given slack and then you work around it.

Looks like it's at @255 time stamp on black plastic cover. J35Y8

My 2006 Civic (different engine than 2018) were all loose at 250k km (156k miles) when I first did it. The engine sounded like the clicky clack of a sewing machine. After the adjustment it quieted down and there was no distict sewing machine sound. It's hard to describe, but it very clearly made that noise before the adjustment and it clearly wasn't making the noise after. It's still quiet at 395k km (246k km).

@jptrainor cool! I just recently readjusted my valves once more to give it a fine-tune. I still get a bit of ticking still. Normal for Honda. This is my fourth civic hatchback. Thanks for the reply.

😂 whaaat

I thought it was a spoonful of sugar 😊

It’s possible but it sounds more like a timing chain issue. Hard to say without hearing it. But yes it could be a symptom of this issue.

That also could be the vvti gear. They are know to go bad in that generation along with many other cars. Look up vvti gear rattle and check if the sound is the same as you are experiencing.

Sounds like the infamous Honda VTC rattle. Chris Fix has a nice video on this.

@@donaldlee6760 Hey thank you for that tip, and link! That is exactly what hers sounds like upon startup. Now I know what the fix is. Weird I had not seen this before, as I follow Chris Fix.

Same 2.4 engine in my 2014 Accord. It was the timing chain tensioner. Less than $60 for an OEM part on eBay.

Sugar ratio needs to be higher.

No hydraulic lifters Honda is different

@@DANNYN224 Thanks. Would you know the reason why Honda doesn’t use them? I’m just curious. Tia!

@@Conservator. more reliable and cheaper. Honda knows their target consumer doesn't care about the slightly quieter engines. hydraulic lifters cause more issues and are only there for NVH (noise vibration and harshness). RAM 6.7 cummins starting in 19 use hydraulic rollers... biggest piles of junk to ever exist. Went from being the most reliable diesel engine to a pile a of dogshit. Fortunately you can buy aftermarket kits to convert them back.

@@Conservator.well 2023 pilots don’t require valve adjustments anymore, but Honda doesn’t fix what isn’t broke. They don’t have valve train problems like GM Chrysler do for a reason

They've added hydraulic lifters to the J-series engines recently (like he mentioned in the video). But until the last few years they were all like you see in this video. All the 4 cyclinder engines still use adjustable rockers AFAIK.