Nov 222013
 

Honda Transmission Noise in CRV & Odyssey MVRA AutomaticIntroduction…    (Honda Transmission Noise Problems Bearing Related)

Honda Automatic Transmissions are known for being noisy when stationary and idling in Park or Neutral. Its not normally an issue due to the design of the transmission and once driving the noises disappear. Bearing problems have been a common issue across Honda’s many variations of there transmissions and usually require the transmission to be dismantled. The late model “MVRA” Honda CRV Transmission & Honda Odyssey Transmission have a new design which can allow the repair to be preformed while the transmission is still fitted to the vehicle.

The Transmission…

Its known as the Honda MVRA Transmission and there is a 4 speed & 5 speed version in the CRV’s & Odyssey’s from around 2001 through to 2007.

The Problem…

In the rear cover of the transmission there is a pressed in roller bearing which helps support the mainshaft. The aluminium rear cover wears out causing the bearing to move around causing it to also fail and be come noisy. The reason the noise is noticeable when in Park or Natural is because the mainshaft free wheels due to engine speed and no clutch engagement. When Drive or reverse is selected the clutch on the mainshaft applies the mainshaft stops spinning.

The Fix…

With the vehicle on a hoist the transmission can be lowered buyingativancheap.com/ down enough to remove the rear transmission cover. To allow enough clearance for the cover to be removed the bottom and top transmission mountings need to be disconnected.

Replacement Parts…
1 x Genuine Rear Cover (Use Vehicle VIN)
1 x Genuine Gasket to suit Rear cover
3 x Genuine Pipe O-rings (Can be reused)
5 x Litre’s of Honda Transmission Fluid (Recommend flushing with 20L drum)

When the rear cover is removed the large bearing should fall out and be a loose fit in the housing. Some times they are stuck and the bearing it self looks damaged. The cover is a straight swap all you need to do is clean the gaskets surface and replace the gasket and the pipe o-rings and refit the rear cover.  You can preform a transmission service and road test the vehicle there should be no noise present.

Conclusion…

Depending on the age and service life of the vehicle this repair is only recommend for low kms (Under 150,000kms)  and good service history vehicles. The transmission could have other faults inside which could cause problem soon after. Please always seek a professional opinion on the condition of your transmission before carrying out this type of repair.

See Also…

List of Honda Transmissions