I bought this 05 EX-L Odyssey used at 86k miles from original owner who had down all regular maintenance at honda.
It was all fine until we hit 100k miles. Power steering pump went out 2x, a/c compressor went out.
Check engine light came on - P0420. It came on a year ago and would go out for a few months before coming back. Mechanic replaced one oxygen sensor....but problem still came back. Now check engine light is on almost all the time but will shut off once in a while then come back. I actually do not notice any loss in power at all. Van drives fine without any rattling either.
I have noticed the check engine light come on several times when the VCM ECO sign kicked on. Of course, after check engine light kicks on, the VCM ECO shuts off. So maybe I'm just noticing the ECO shut off when check engine light comes on, as opposed to VCM ECO triggering check engine light to come on.
Separately, or unrelated, I'm not sure....I have this shudder/vibrating coming from under hood somewhere when I'm driving around freeway at 2k rpm, especially between 60-70 mph. At first, I thought it was unbalanced wheel or brakes, but if I shift into D3, or lower gear (so I rev higher), but maintain exact same speed, the vibrate/shudder goes away. I can reproduce this every time - making it go away by kicking into different gear but keeping same speed.
I also thought it was related to VCM. The ECO light would come on when that vibrate/shudder happened....however, with my check engine light on most of the time now, doesn't that disable the VCM? I still have the vibrate/shudder happening at 2k rpm, 60-70 mph.
Or is this bad cat (0420 code) causing this?
I just read all this stuff about VCM. I was going to try that svcm or whatever VCM muzzler you guys recommend. WIth i eck engine light on though, isn't VCM disabled? Or could a bad mount still be electronically engaged with VCM disabled, causing that shudder at 2k rpm?
We've only driven van 24k miles since we bought it used 7 years ago - so I'm disappointed with everything falling apart at 100k miles. I think we paid $16k for it 7 years ago too.
I just paid $1k to replace a/c. We did timing belt/water pump and belts for $1800 a couple years ago. Then we replaced all the brake rotors and pads too.
I'm just wondering if it is worth trying to salvage the van at this point?
If I have to replace cat or if the engine is bad, I dont want to put too much money into it. I'd rather buy a replacement van as we have young kids. (Or should I try replacing the 2nd oxygen sensor? I think the mechanic only replaced 1 sensor on the bank....not sure which one).
I'm also burning 1 quart of oil every 800 miles. The sliding doors are popping like crazy. I need 3 new tires soon too.
I need to do spark plugs and valve adjustment soon too. I guess there is one engine mount bad too as I hear a thump/thud sometimes if I accelerate fast.
I would appreciate all your thoughts and recommendations. I'm not sure what to do - whether to trade in van or sell it. It still drives fine or well actually - aside from the vibrating.