Cause:
Excess wear in TC check valve bore allows critical pressure loss and/or valve hang-up.
Correction:
Recover hydraulic control and renew TCC operation by installing Sonnax TC check valve kit.
An overheated converter, TCC codes, and/or poor cooler flow are common problems in Honda vehicles equipped with five-speed automatic transmissions. These conditions can be caused by a worn or sticking TC check valve.
The TC check valve ensures converter pressure does not become excessive during TCC apply, release, or partial apply. Repeated stroking of the valve can create casting wear areas over time. Depending upon the specific Honda application, this valve can stroke in one casting or multiple castings that are stacked together. The valve can stick on the ledges of these wear areas or at the edges of the stacked castings.
If the TC check valve sticks in the open position, converter pressure will be reduced. If stuck in the closed position, excess converter pressure can result. Depending upon the wear in the casting bore, the valve may leak, reducing converter pressure, or may be prevented from stroking when necessary to reduce excess converter pressure.
Replacing the OE TC check valve with Sonnax TC check valve kit restores correct torque converter pressure and prevents valve hang-up.
Sleeve eliminates ledges that cause valve hang-up
Sleeve manufactured from highly wear-resistant aluminum
No reaming or special tools required
Salvages OE valve bodies machined with an edge remaining at the relief ports
Application Chart
Make
Model
Year
Trans Code
From
To
Acura
MDX
2003
2004
MDKA
Acura
MDX
2005
2006
BDKA
Acura
MDX
2007
2011
BYFA
Acura
RDX
2007
2011
BWEA
Acura
RL
2005
2011
MJBA
Acura
TL Type S
2007
2008
BDHA
Acura
TL Type S
2009
2011
BK3A
Acura
TL Type S
2009
2011
BK4A
Acura
TSX
2010
2011
MM2A
Honda
Accord
2008
2011
B97A
Honda
Accord
2010
2010
P79A
Honda
Accord Hybrid
2005
2007
MURA
Honda
Crosstour
2010
2011
BBSA
Honda
Crosstour
2010
2011
BBTA
Honda
Odyssey
2007
2011
B36A
Honda
Odyssey
2007
2011
P36A
Honda
Pilot
2003
2007
BVLA
Honda
Pilot
2003
2007
PVLA
Honda
Pilot
2003
2007
PVGA
Honda
Pilot
2006
2007
BVGA
Honda
Pilot
2008
2008
P34A
Honda
Pilot
2008
2008
P35A
Honda
Pilot
2009
2011
PN3A
Honda
Pilot
2009
2011
PN4A
Honda
Ridgeline
2006
2008
BJFA
Honda
Ridgeline
2006
2008
MJFA
Honda
Ridgeline
2009
2011
PSFA
Saturn
Vue
2004
2007
MDPA
Saturn
Vue
2004
2007
MDRA
In addition to the application chart, the OE spring must match one of the following specifications:
Match 1 of these OE Spring Specs
Wire Dia.
Outer Dia.
Free Length
Total Coils
.043"
.339"
1.35"
12.1
043"
.339"
1.38"
14.6
.043"
.332"
1.38"
14.5
Note:
This kit fits several Honda 5-speed models. However, model to model, the appearance of valve bodies and the location of the TC check valve bore may vary.
See application chart below for fitment details.
Symptoms:
Cause: Excess wear in TC check valve bore allows critical pressure loss and/or valve hang-up.
Correction: Recover hydraulic control and renew TCC operation by installing Sonnax TC check valve kit.
An overheated converter, TCC codes, and/or poor cooler flow are common problems in Honda vehicles equipped with five-speed automatic transmissions. These conditions can be caused by a worn or sticking TC check valve.
The TC check valve ensures converter pressure does not become excessive during TCC apply, release, or partial apply. Repeated stroking of the valve can create casting wear areas over time. Depending upon the specific Honda application, this valve can stroke in one casting or multiple castings that are stacked together. The valve can stick on the ledges of these wear areas or at the edges of the stacked castings.
If the TC check valve sticks in the open position, converter pressure will be reduced. If stuck in the closed position, excess converter pressure can result. Depending upon the wear in the casting bore, the valve may leak, reducing converter pressure, or may be prevented from stroking when necessary to reduce excess converter pressure.
Replacing the OE TC check valve with Sonnax TC check valve kit restores correct torque converter pressure and prevents valve hang-up.
In addition to the application chart, the OE spring must match one of the following specifications:
Note: This kit fits several Honda 5-speed models. However, model to model, the appearance of valve bodies and the location of the TC check valve bore may vary.
Content:
SONNAX Installation Instructions