1998 ACURA INTEGRA Service Repair Manual

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14-89
Ma i nshaft/Cou ntershaft
Speed Sensors
Replacement
l.
2.
Disconnect the speed sensor connectors.
Remove the 6 mm bolts securing the mainshaft and
countershaft speed sensors from the transmission
housing.
Remove the mainshaft and countershaft speed sen-
sors.
Installthe mainshaft and countershaft speed sensors
in the reverse order of the removal.
6x1.0mm12 N.rn 11.2 kgtm,8.7 tbttrt
Transmission Control
Module (TCM)
Replacement
1. Remove the two clips socuring the kick panel, then
remove the oanel.
2, Disconnect the connectors and remove the TCM.
6 x 1.0 rnm12 N.m{1,2 kgt.m,8.7 tbt.ft)
CONNECTORS

Symptom-to-Component Chart
Hydraulic System
SYMPTOMCheck these items on the
PROBABLE CAUSE List
Check these items
on the NoTES List
Engine runs, but car does not move in any gear.1,2,3,5,6,7,37, 42K,L.R,S
Vehicle moves in E and E, but not in lD,l, D. , or E position.6, 8, 9, 10, 59c,M,o
Vehicle moves in E, o.-, E, E, but not in E position.6,11,12,21c.L
Vehicle moves in 9r, 9. , E, E, but not in E position.4,6, 13,32c,L,o
Vehicle moves in E position.10, 12, 14, 31, 32, 34, 35, 36
Excessive idle vibration.2,33, 31, 44, 49B,K,L
Poor acceleration; flares on starting off in D! position
Stall rpm high in lQ|. E, E, E position.1, 2, 3, 6, 42, 45K,L,R
stall rpm high in lo.tl. ld, E position.6, 8, 10c.D
Stall rpm high in E position.
Stall rpm high in B position.32N
tat"tkp,ril"*'15,33,48,49R
No shift44, 51, 52G,L
Fails to shift in ql position; from 1st to 3rd gear.19
Fails to shift in E position; from lst to 4th gear.19, 20
Erratic upshifting.
1-2 upshift, 2-3 upshift,3-4 upshift64
fiz upshift
ETupshift52
Ia-+ upstrifi5l
Harsh upshift {1-2).12, 16, 11,21,63,64C,D,E,V
Harsh upshift (2-3).16,17,22,24,31,63,64C,D,E.H,L,V
Harsh upshift (3-4).16,'tl. 23, 28, 32, 63, 64C, D, E. I,L.V
Harsh downshift (2-1).16, 17,21,27,34,63,64o
Harsh downshift (3-2).16, 11 ,22,2A,39,57 ,63, 64
Harsh downshift (4'3).16, 17, 23. 40, 56, 63. 64C, D, E, I
Flares on 2-3 upshift.16, 17 ,22,24, 25,29,31E,L,V
Flares on 3-4 upshift,16, 11 ,23,25,24,30,32E,L,V,N
Excessive shock on 2-3 uDshift.16, 11, 22, 24, 29, 38, 46, 64E,L.N
Excessive shock on 3-4 upshift.16, 11 , 23, 2a,29, 40, 46, 64E,L,N
Late shift from E position to d or E position.10, 26M
Late shift from M position to L!!l position.4, 18,32,55o
Noise from transmission in all shift lever Dositions.2,41K,L,O
Vehicle does not accelerate more than 31 mDh (50 km/h).
Shift lever does not operate smoothly.6, 43P
Fails to shifu stuck in 4th gear.5'1,52
Transmission will not shift into parking gear in JII position.6, 43, 62P
Stall rpm high; all clutch pressures are in specification.D,K,O
Lock-up clutch does not disengage.16,17, 47, 48,49, 50, 53, 54, 64E,L,V
Lock-up clutch does not operate smoothly.16, 17, 45, 47 , 48, 49,50, 53. 54, 64
Lock-up clutch does not engage.16,17, 45, 47, 48, 49,50, 53, 54, 63, 64E,L,V
Excessive shock when shifting into E position.60
No engine braking in E position.58, 50C,D.L
Vibration in all positions.
Position indicator light does not come on.6, 43, 61
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14-90
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14-91
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PROBABLE CAUSE
1Low ATF.404th check ball stuck.
2ATF pump worn or binding.4'lTorque converter housing or transmissionhousing ball bearing worn/damageo.
3Regulator valve stuck or spring worr..42ATF strainer clogged.
4Servo valve stuck.43Joint in shift cable and transmission or body
5Mainshaft worn/damaged.44Modulator valve stuck.
6Shift cable broken/out of adiustment45Torque converter check valve stuck.
7Final gears worn/damaged (2 gears).46Foreign material in separator plate orifice.
8One.way {sprag) clutch worn/damaged.47Lock-up timing B valve stuck.
91st gears worn/damaged {2 gears).4ALock-up shift valve stuck.
10lst clutch defective.49Lock-up piston defective.
112nd gears worn/damaged (2 gears).50Lock-up control valve stuck.
122nd clutch defective.5lShift control solenoid valve A defective.
Reverse gears worn/damaged (2 gears).52Shift control solenoid valve B defectrve.
14Excessive ATF.53Lock up control solenoid valve A defective,'t5Torque converter one-wav clutch defective.54Lock-up control solenoid valve B defective.
16Throttle valve B stuck.55Servo control valve stuck.
11Throttle control cable out of adiustment.564-3 kick-down valve stuck.
181-2 shift valve stuck.3-2 kick-down valve stuck.'192 3 shift valve stuck.lst-hold clutch defective.
203-4 shift valve stuck.59'| st accumulator defective.
2nd accumulator defective.60'lst-hold accumulator defective,
223rd accumulator delective,olA,rf gear position switch defective,
4th accumulator defective.62Parking mechanism defective.
24Orifice control valve stuck.63Mainshaft speed sensor defective.
Foreign material in main orifice.64Countershaft speed sensor defective.
26Foreign material in lst orifice.
Foreign material in 2nd orifice.
2A2-3 orifice control valve stuck.
29Foreign material in 3rd orifice.
30Foreign material in 4th orifice.
JI3rd clutch defective.
4th clutch defective.
33Engine output low.
34Needle bearing worn/damaged.
35Thrust washer worn/damaged.
36Clutch clearance incorrect.
37Drive plate defective or transmission misas-semory.
382nd check ball stuck.
393rd check ball stuck.
(cont'd)

The following symptoms can be caused
by improper repair or assembly
Checkthese items on the
PROBABLE CAUSE DUE TO
IMPROPER REPAIR Llst
Items on the
NOTES List
Vehicle creeps in E] position.R1, R2
Vehicle does not move in l&l or Lql position.R4
Transmittion locks up in E] position.R3, R12
Excessive drag in transmission.R6K,R
Excessive Vibration, rpm related.R7
Noise with wheels moving only.R5
Msin soal pops out,R8
Various shifting problems.R9, R1O
Harsh upshifts.Rl l
Symptom-to-Gomponent Ghart
Hydraulic System (cont'd)
14-92
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PROBABLE CAUSE DUE TO IMPROPER REPAIR
R1lmproper clutch clearance.
R2.lmproper gear clearance.
R3.Parking brake lever installed upside down.
R4.One-way (sprag) clutch installed upside down.
R5.Reverse selector hub installed uoside down.
R6.ATF pump binding.
R7.Torque converter not fully seated in ATF pump.
R8.Main seal improperly installed.
R9.Springs improperly installed.
R10.Valves improperly installed.
R11Ball check valves not installed.
R12.Shift tork bolt not installed.

NOTES
See flushing procedure, page 14-172 and 173.
B.Set idle rpm in gear to specilied idle speed. lf still no good, adjust motor mounts as outlined in enginesection of service manual.
c.lf the large clutch piston O-.ing is broken, inspect the piston groove for rough machining.
D.lf the clutch pack is seized or is excessively worn, inspect the other clutches lor wear, and check the
orifice control valves and throttle valves for free mov€ment.
E.lf throttle valve B is stuck. insDect the clutches for wear.
lf the 1 - 2 shift valve is stuck closed, the transmission will not upshitt. lf stuck open, the transmissionhas no lst gear.
H.lf the 2-3 orilice control valve is stuck, inspect the 2nd and 3rd clutch packs for wear.
lf the orifice control valve is stuck. inspect the 3rd and 4th clutch packs for wear.
J.lf the clutch pressure control valve is stuck closed, the transmission will not shift out oI 1st gear.
lmproper alignment or main valve body and torque converter housing may cause ATF pump seizure.
The symptoms are mostly an rpm-related ticking noise or a high-pitched squeak.
lf the ATF strainer is clogged with particles of steel or aluminum, inspect the ATF pump and differentialpinion shaft. lf both are OK and no cause for the contamination is found, replace the torque converter.
M.lf the 1st clutch feed pipe guide in the right side cover is scored by the mainshaft, inspect the ball bear-
ing lor excessive movement in the transmission housing. lf OK, replace the right side cover as it is dent-
ed. The O-ring under the guide is probably worn.
N.Replace the mainshaft if the bushing for the 4th feed pipe is loose or damaged.lf the 4th feed pipe is damaged or out of round, replace the right side cover.Replace the sub-shaft il the bushing for the 1st-hold teed pipe is loose or damaged.lf the 1st-hold teed pipe is damaged or out of round, replace it.
Replace the mainshaft iI the bushing for the lst feed pipe is loose or damaged.lf the 1st leed pipe is damaged or out of round, replace it.
A worn or damaged sprag clutch is mostly a result of shifting the transmission in El or LDll position
while the wheels rotate in reverse, such as rocking the vehicle in snow.
P.Inspect the trame for collision damage.
Inspect lor damage and wear:1. Reverse selector gear teeth chamfers.2. Engagement teeth chamfers of countershaft 4th and reverse gear.
3. Shift fork for scuff marks in center.4. Differential pinion shaft tor wear under pinion gears.
5. Bottom of 3rd clutch for swirl marks.Replace items 1 . 2, 3 and 4 iI worn or damaged. lf transmission makes clicking, grinding or whirringnoise, also replace mainshaft 4th gear, reverse idler gear, and countershatt 4th gear in addition to '1,
2,3or4.It differential pinion shalt is worn, overhaul differential assembly, and replace ATF strainer, and thoroughly
clean transmission, tlush torque conveder, cooler and lines.lf bottom ot 3rd clutch is swirled and transmission makes gear noise, replace the countershaft and final
onven qear.
R.Be very careful not to damage the torque converter housing when replacing the main ball bearing. You
may also damage the ATF pump when you torque down the main valve body. This will result in ATFpump seizure if not detected. Use proper tools.
S.Install the main seal llush with the torque converter housing. lf you push it into the torque converterhousing 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 a bent-in throttle valve
retainer/cam stopper. Throttle cable adjustment may clear this problem.
Throttle cable adjustment is essential tor proper operation ol the transmission. Not only does it affectthe shift points if misadjusted, but also the shift quality and lock up clutch operation.A cable adjusted too long will result in throttle pressure being too low for the amount of engine torqueinput into the transmission and may cause clutch slippage. A cable adjusted too short will result in toohiqh throttle pressure which may cause harsh shifts, erratic shifts and torque converter hunting.

Road Test
NOTE: Warm up the engine to operating temperature (the radiator fan comes on).
1. Apply parking brake and block the wheels. Start the engine, then shift to @ position while depressing the brake pedal-
Depress the accelerator pedal, and release it suddenly. The engine should not stall.
2. Repeat same test in E position.
3. Test drive the vehicle on a flat road in the @ position. Check that the shift points occur at approximate speeds shown.
Also check for abnormal noise and clutch slippage.
NOTE: Throttle position sensor voltage represents the throttle opening.
-1. Remove the TCM (see page 14-52).-2. Set the digital multimeter to check voltage between 84 (+) terminal and A13 or A26 (-) terminal for the throttle posi-
tion sensor.
84 Terminal
DIGITAL MULTIMETER(Commercially availablelKS - AHM -32 - 003oa oquivalent
, 14-94
TCM CONNECTORS
WIRE SIDE OF FEMALE TERMINALS
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. Upshift: E Position
. Upshift: [d Po3ition
o Downshift: E Position
. Downshift E Position
Throttle OpeningUnit of speadlst + 2nd2nd r 3rd3rd + 4th
Throttle position sensor
voltage: 1.0 V
mpn8.0 - 10.020.0 - 23.027.0 - 31.0
km/h13.5 - 16.132.2 - 31 .043.5 - 49.9
Throttle position sensor
voltage: 2.5 V
mpn21.0 - 25.O38.0 - 43.058.0 - 64.0
km/h33.8 - 40.261 .2 - 69.293.3 - 103.0
Fully-opened throttlemph31.0 - 36.063.0 - 71.097.0 - 108_0
km/h49.9 - 57.9101.4 - 114.3156.1 - 173.8
Throftle OpeningUnit of speedlst -, 2nd2nd -r 3rd
Throttle position sensor
voltage; 1.0 V
mpn8.0 - 10.020.0 - 23.0
km/hI J.C - tO. I32.2 - 37.O
Throttle position sensor
voltage: 2.5 V
mph21.0 - 25.O38.0 - 43.0
km/h33.8 - 40.261.2 - 69.2
Fully-opened throttlemph31.0 - 36.063.0 - 71.0
km/h49.9 - 57.9101.4 - 114.3
Throttle OpeningUnit ol spceditth -+ 3.d3rd r znd2nd r lst
Throttle position sensor
voltage: 0.5 V
mpn17.5 - 20.56.0 - 9.0 (3rdr1st)
km/h24.2 - 33.09.7 - 14.5 (3rd-r1stl
Fully-opened throttlemph85.0 - 95.054.0 - 61.023.0 - 24.0
km/h137.0 - 1s2.986.9 - 98.237.0 - 45.1
Throttle OpeningUnit of speed3rd J zndznd + 13t
Throttle position sensor
voltage: 0.5 V
mpn6.0 -9.0 (3rd-r1st)
km/h9.7 - 14.5 (3rd-+1st)
Fully-opened throttlempn54.0 - 61.023.0 - 28.0
km/h86.9 - 98.237.0 - 45.1
14-95

Road Test
(cont'dl
Lock-up: E Position
. Lock-up: Ell Position
4. Accelerate to about 35 mph (57 km/h) so the transmission is in 4th, then shitt from E position to E position.
The vehicle should immediately begin slowing down from engine braking.
CAUTION: Do noi shitt lrom I or $ position to E or E position 8t speeds over l0o mph (160 km/h); you may
damage the transmission.
5. Check for abnormal noise and clutch slippage in the following positions,
E {1st Gear} Position-1. Accelerate from a stop at fullthrottle. Check that there is no abnormal noise or clutch slippage.-2. Upshifts should not occur with the shift lever in this position.
E (2nd Gear) Position-1. Accelerate from a stop atfull throttle. Check that there is noabnormal noiseorclutch slippage.-2. Upshifts and downshifts should not occur with the shift lever in this position.
E (Reverse) Position
Accelerate from a stop at tull throttle, and check for abnormal noise and clutch slippage.
6. Test in E (Parking) Position
Park vehicle on slope {app.ox. 16'}, apply the parking brake, and shift into E position. Release the brake; the vehicle
should not move.
Throttle OpeningUnit of spoedLock-up control solenoid
valve A: ON
Lock-up contlol solenoid
valve B: ON
Throttle position sensor
voltage: 1.0 V
mph14.0 - 17.017 .0 - 20.0
km/h22.5 - 27 .427 .4 - 32.2
Fully-opened throftlemph92.0 - 96.092.0 - 96.0
km/h148.1 - 154.5148.1- 154.5
Throttle OpeningUnit of speedLock-up conirol 3olenoid
valve A: ON
Lock-up control solonoid
valvs B: ON
Throttle position sensor
voltage: 1.0 V
mph61.0 - 68.060.0 - 67.0
km/h98.2 - 109.496.6 - 107.8
Fully-opened throttlempn85.0 - 94.085.0 - 94.0
km/h136.8 - 151.3'136.8 - 151.3
14-96
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