'04 V6 MT6 clutch/gearbox trouble
#1
'04 V6 MT6 clutch/gearbox trouble
So I've picked up this '04 Honda Accord Coupe 3.0 (J30A4) V6 MT6. The engine is amazing; I'm very much impressed -- this is exactly what I was looking for.
But when I do power shifting from 2nd to 3rd then the gears clash badly (I mean really badly -- I'm cringing and my heart is breaking). Same if switching back into 3rd at high RPM.
But the worst is: I've accelerated at full throttle in 2nd driving up on a highway. I shifted into 3rd (a bit of clashing of gears), then tried to shift into 4th. I was able to shift out of 3rd but then unable to shift into any gear -- and the clutch pedal was "stuck" halfway in (or out, depending on one's view). I had to roll to a stop: more clutch pedal pushing, but no change in its position. Then I turned off the engine and restarted it -- and the clutch "released" and everything worked again.
If I drive the car at relatively low RPMs and doesn't attempt to power shift then the car (clutch/gearbox) works just fine (not even the clashing of gears when shifting into 3rd).
So what gives? Which part of the clutch fails at high RPM/high torque? I'm not well versed enough in the details of the clutch mechanism to be able to diagnose the problem.
Please help!
But when I do power shifting from 2nd to 3rd then the gears clash badly (I mean really badly -- I'm cringing and my heart is breaking). Same if switching back into 3rd at high RPM.
But the worst is: I've accelerated at full throttle in 2nd driving up on a highway. I shifted into 3rd (a bit of clashing of gears), then tried to shift into 4th. I was able to shift out of 3rd but then unable to shift into any gear -- and the clutch pedal was "stuck" halfway in (or out, depending on one's view). I had to roll to a stop: more clutch pedal pushing, but no change in its position. Then I turned off the engine and restarted it -- and the clutch "released" and everything worked again.
If I drive the car at relatively low RPMs and doesn't attempt to power shift then the car (clutch/gearbox) works just fine (not even the clashing of gears when shifting into 3rd).
So what gives? Which part of the clutch fails at high RPM/high torque? I'm not well versed enough in the details of the clutch mechanism to be able to diagnose the problem.
Please help!
#2
Re: '04 V6 MT6 clutch/gearbox trouble
Good luck. My answer to your question has always been that Honda just made a crappy 3rd. I'm on my second transmission and both have problems with 3rd gear.
Btw, sorry, but I can't really offer any advice on the sticky pedal.
Btw, sorry, but I can't really offer any advice on the sticky pedal.
#3
Honda-Tech Member
Re: '04 V6 MT6 clutch/gearbox trouble
First off, the 6mt is known for bad 3rd gear synchros. Mine grinds on occasion bit nowhere near as bad as yours sounds.
Second. Sounds like you need a Clutch, flywheel and/or slave/master cylinder. Mine had a BROKEN flywheel when I bought it. If pedal is stuck in middle I would vote bad slave.
Second. Sounds like you need a Clutch, flywheel and/or slave/master cylinder. Mine had a BROKEN flywheel when I bought it. If pedal is stuck in middle I would vote bad slave.
#5
Re: '04 V6 MT6 clutch/gearbox trouble
Well, they're going to replace the whole clutch assembly w/ a new & improved clutch design; same for the 3rd gear stuff, including the synchro(s). It is going to cost me an arm & a leg & my firstborn, but it'll be better than new.
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