Acura RL (1996-2004 year). Manual

NOTES

A Flush the ATP cooler and cooler line (see page

14-195

and

14-196

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 or posi-

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.

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Road Test

NOTE: Warm up the engine to normal operating temperature (the radiator fan comes on).

1. Apply parking brake and block the wheels. Start the engine, then shift to position while pressing the brake pedal.

Press the accelerator pedal and release it suddenly. The engine should not stall.

2. Repeat the same test in position.

3. Test-drive the vehicle on the flat road in position. Check that the shift points occur at the approximate speeds

shown on the next page. Also check for abnormal noise and clutch slippage.

NOTE: Throttle position sensor voltage represents the throttle opening.

a. Remove the PCM cover to expose the PCM for road testing; refer to page

14-54

and

14-55

b. Set the digital multimeter to check voltage between D6 (+) terminal and A26 (-) terminal of the PCM for the throttle

position sensor.

NOTE: Refer to page

14-54

; How to use the Backprobe Set.

SRS components are located in this area. Review the SRS component locations, precautions, and procedures in the SRS
(

section 24

) before performing repairs or service.

PCM

D6 Terminal

DIGITAL MULTIMETER
(Commercially available)

KS - AHM - 32 - 003,

or equivalent

BACKPROBE SET

07SAZ-001000A

(two required)

BACKPROBE
ADAPTER

STACKING PATCH CORDS

A26 Terminal

PCM CONNECTORS

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Acura RL (1996-2004 year). Manual - part 435