Link to Part 2 Access and Replace VVT Valve: https://www.youtube.com/watch?v=zNMtYVjA948&t=597s
HONDA MODELS USING VVT VALVE 15810-R70-A04 - This Odyssey is a 2008 Touring Model with brittle gaskets in the VVT Solenoid Spool causing considerable oil leaking down the side and front of the engine (area of the alternator and camshaft timing belt) and dripping of the bottom near the serpentine belt tensioner.
Honda VVT Solenoid Spools are known to develop oil leaks with age. The VVT Solenoid Spool is generally located on the head of the engine. In this case, it is right at the oil dipstick. Various vehicle models and engines will have different types of VVT Solenoid configurations. The Touring Model may have a different VVT Solenoid than the LX and EX Models. Use your vehicle VIN number to look up the correct VVT parts for your vehicle.

Fit For:
2013-2015 for Acura RDX 3.5L V6 GAS SOHC
2008-2012 for Honda Accord 3.5L V6 GAS SOHC
2010-2011 for Honda Accord Crosstour 3.5L V6 GAS SOHC
2012 for Honda Crosstour 3.5L V6 GAS SOHC
2008-2016 for Honda Odyssey 3.5L V6 GAS SOHC
2009-2015 for Honda Pilot 3.5L V6 GAS SOHC

VVT Valve - Original Equipment (OE) Number:
2T1136
VV1182
VVT282
TS1136
15810R70A03
15810-R70-A04

When the factory solenoid fails, it can lead to poor fuel economy

Some symptoms that show the solenoid valve is not functioning well:
Check engine light on,
Dirty engine oil
Roughness in idling engine
Decline in fuel efficiency