Acura 3.5 RL Manual page 539

A Flush the ATP cooler and cooler line (see page
B Set idle rpm in gear to specified idle speed. If still no good, adjust motor mounts as outlined in engine
section of service manual.
C If the large clutch piston O-ring is broken, inspect the piston groove for rough machining.
D If the clutch pack is seized or is excessively worn, inspect the other clutches for wear and check the orifice
control valves and throttle valve for free movement.
E If throttle valve is stuck, inspect the clutches for wear.
G If the 1-2 shift valve is stuck closed, the transmission will not upshift. If stuck open, the transmission has
no 1st gear.
H If the 4-3 shift timing valve is stuck, inspect the 2nd and 3rd clutch packs for wear.
I If the 3-4 orifice control valve is stuck, inspect the 3rd and 4th clutch packs for wear.
Improper alignment of ATP pump body and torque converter housing may cause ATP pump seizure. The
symptoms are mostly an rpm-related ticking noise or a high pitched squeak.
L If the ATP strainer is clogged with particles of steel or aluminum, inspect the ATP pump. If OK and no
cause for the contamination is found, replace the torque converter.
M If the 1st clutch feedpipe guide in the rear cover is scored by the mainshaft, inspect the ball bearing for
excessive movement in the transmission housing. If OK, replace the rear cover as it is dented. The O-ring
under the guide is probably worn.
N Replace the mainshaft if the bushings for the Island 2nd feedpipe are loose or damaged. If the 1st feedpipe
is damaged or out of round, replace it. If the 2nd feedpipe is damaged or out of round, replace the rear cover.
0 A worn or damaged one-way (sprag) clutch is mostly a result of shifting the transmission in
tion while the wheels rotate in reverse, such as rocking the vehicle in snow.
P Inspect the frame for collision damage.
Q Inspect the reverse clutch for damage or wear.
Inspect bottom of 3rd clutch for swirl marks.
Replace reverse clutch if worn or damaged. If transmission makes clicking, grinding, or whirring noise,
also replace mainshaft reverse gear, reverse idler gear, and countershaft reverse gear.
If bottom of 3rd clutch is swirled and transmission makes gear noise, replace the countershaft.
R Be very careful not to damage the torque converter housing when replacing the main ball bearing. You
may also damage the ATP pump when you torque down the ATP pump body. This will result is ATP pump
seizure if not detected. Use the proper tools.
S Install the main seal flush with the torque converter housing. If you push it into the torque converter
housing until it bottoms out, it will block the fluid return passage and result in damage.
T Harsh downshifts when coasting to a stop with zero throttle may be caused by the A/T clutch pressure con-
trol solenoid valve not working.
V Adjusting the throttle valve body, throttle valve, and A/T clutch pressure control solenoid valve is essential
for proper operation of the transmission. Not only does it affect the shift quality if misadjusted, but also
the lock-up clutch operation.
NOTES
14-195 and 14-196).
or posi-