Honda Odyssey
Evolution of J35A7, VCM now on all trims. 248 hp. Honda reworked rings but never fully solved it — TSB 13-081, class action with 8-year warranty extension. Check VTEC spool valve and cover gasket for leaks.
VCM standard — oil consumption continues
248 hp, VCM on all trims. TSB 13-081 and class action with 8-year warranty. 6-speed from 2014 better. Space and comfort class-leading.
Engine Weaknesses 4
VCM causes piston rings to stick. 8-year warranty extension. 1 qt/1000 mi in bad cases.
Symptoms: Oil drops rapidly, no warning until critical, engine stalls
VCM vibrations destroy mounts. VCM now standard on all trims.
Symptoms: Vibrations, clunking on shifts
Oil from VTEC valve or cover gasket drips on alternator — alternator failure cascade.
Symptoms: Oil traces on engine, alternator fails
Plastic intake tube cracks. Stumbling on acceleration.
Symptoms: Stumbling on acceleration, rough idle
Vehicle Weaknesses 8
4th-gen Odyssey (RL5) also affected by Takata recall. Inflators can rupture from propellant degradation on deployment.
Lock-up clutch judder at 30-60 mph. TSB 17-043. Honda warranty 8yr/80k mi.
Cable+motor assembly. $900-$1,500 at dealer.
Variable Cylinder Management (VCM) causes engine vibrations and increased oil consumption. VCMTuner deactivation mod is widely used by US owners.
Lock-up clutch shudders at 30-60 mph steady cruise. Honda TSB 17-043 — warranty extended to 8 years / 80,000 miles.
HFL draws 260mA vs normal 30mA. Battery dead overnight.
Front rotor warping continues from RL3.
Bump stop contacts damper top. TSB 11-038. Grease fixes.
