oil change ACURA CSX 2006 Service Repair Manual

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Engine Lubrication
Item Measurement QualificationStandard or New Service Limit
2-5
Engine oil Capacity (K20Z2) Engine overhaul 5.3 L (5.6 US qt)
Oil change
including filter 4.2L(4.4USqt)
Oil change
without filter 4.0L(4.2USqt)
Capacity (K20Z3) Engine overhaul 5.5 L (5.8 US qt)
Oil change
including filter 4.4L(4.6USqt)
Oil change
without filter 4.2L(4.4USqt)
Oil pump Inner-to-outer rotor clearance 0.06 0.16 mm (0.002 0.006 in.) 0.20 mm (0.008 in.)
Pump housing-to-outer rotor clearance 0.15 0.21 mm (0.006 0.008 in.) 0.23 mm (0.009 in.)
Pump housing-to-rotor axial clearance 0.035 0.070 mm (0.0014 0.0028 in.) 0.12 mm (0.005 in.)
Balancer shafts, journal diameter No. 1 journal, front shaft19.938 19.950 mm (0.7850 0.7854 in.) 19.92 mm (0.784 in.)
No. 1 journal,
rear shaft 23.938 23.950 mm (0.9424 0.9429 in.) 23.92 mm (0.942 in.)
No. 2 journal,
front and rear
shaft 32.949 32.961 mm (1.2972 1.2977 in.) 32.93 mm (1.296 in.)
Balancer shafts, journal taper 0.005 mm (0.0002 in.) max.
Balancer shafts, end play Front0.063 0.108 mm (0.0025 0.0043 in.) 0.14 mm (0.0055 in.)
Rear 0.063 0.108 mm (0.0025 0.0043 in.) 0.14 mm (0.0055 in.)
Balancer shafts, shaft-to-bearing
clearance No. 1 journal,
front shaft0.050 0.082 mm (0.0020 0.0032 in.) 0.10 mm (0.004 in.)
No. 1 journal,
rear shaft 0.050 0.082 mm (0.0020 0.0032 in.) 0.10 mm (0.004 in.)
No. 2 journal,
front and rear
shaft 0.060 0.120 mm (0.0024 0.0047 in.) 0.15 mm (0.006 in.)
Balancer shaft bearings, I.D. No. 1 journal,
front shaft 20.000 20.020 mm (0.7874 0.7882 in.) 20.03 mm (0.789 in.)
No. 1 journal,
rear shaft 24.000 24.020 mm (0.9449 0.9457 in.) 24.03 mm (0.946 in.)
No. 2 journal,
front and rear
shaft 33.021 33.069 mm (1.3000 1.3019 in.) 33.09 mm (1.303 in.)
Relief valve, oil pressure with oil
temperature at 80 °C (176 °F) At idle
70 kPa (0.7 kgf/cm , 10 psi) min.
At 3,000 rpm 300 kPa (3.1 kgf/cm , 44 psi) min.
2
2
08/08/21 14:07:14 61SNR030_020_0005
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(#')Symbol Maintenance Main Items
3-7
Maintenance Main Items
If the message ‘‘SERVICE’’ does not appear more than 12 months after the display is reset, change the engine oil every
year.
NOTE:


 Replace the brake fluid every 3 years independent of the maintenance messages in the information display.
Inspect idle speed every 160,000 miles (256,000 km).
Adjust the valves during services A, B, 1, 2 or 3, only if they are noisy.

















A Replace engine oil (see page 8-10).
Engine oil capacity without oil filter:
K20Z2: 4.0 L (4.2 US qt)
K20Z3: 4.2 L (4.4 US qt)
B Replace engine oil and oil filter (see page 8-11). Engine oil capacity with oil filter:
K20Z2: 4.2 L (4.4 US qt)
K20Z3: 4.4 L (4.6 US qt)
Check front and rear brakes (see page 19-3). Check pad and disc for wear (thickness), damage, and cracks.
Check calipers for damage, leaks, and tightness of mounting bolts.
Check parking brake adjustment (see page 19-7). Check the number of clicks (8 to 10) when the parking brake lever is pulled with 196 N (20 kgf,
44 lbf) of force.
Inspect tie-rod ends, steering gearbox, and gearbox boots (see page 17-5). Check steering linkage.
Check boots for damage and leaking grease.
Check fluid lines for damage and leaks.
Inspect suspension components (see page 18-3). Check bolts for tightness.
Check condition of ball joint boots for deterioration and damage.
Inspect driveshaft boots (see page 16-4). Check boots for cracks and boot bands for tightness.
Inspect brake hoses and lines including VSA lines (see page 19-37). Check the master cylinder and VSA modulator-control unit for damage or leakage.
Inspect all fluid levels and condition of fluids. Engine coolant (see page 10-7)
Automatic transmission fluid (ATF-Z1) (see page 14-231)
Manual transmission fluid (MTF)
5M/T (see page 13-5), 6M/T (see page 13-82)
Clutch fluid (see page 12-7)
Brake fluid (see page 19-9)
Windshield washer fluid (see page 22-234)
Inspect exhaust system: K20Z2 (see page 9-13), K20Z3 (see page 9-14)
Check catalytic converter heat shields, exhaust pipes, and muffler for damage, leaks, and tightness.
Inspect fuel lines (see page 11-326) and connections (see page 11-328). Check for loose connections, cra cks, and deterioration; retighten loose connections and replace
damaged parts.
NOTE: According to state and federal regulations, failure to do the maintenance items marked with an asterisk ( ) will
not void the client’s emissions warranties. However, Acura recommends that all maintenance services be done at the
recommended interval, to ensure long-term reliability.
08/08/21 14:08:32 61SNR030_030_0007
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Intake Valve Stem Installed Height
Standard (New): 44.0 44.5 mm (1.73 1.75 in.)
Service Limit: 44.7 mm (1.76 in.)
Exhaust Valve Stem Installed Height
Standard (New): 44.1 44.6 mm (1.74 1.76 in.)
Service Limit: 44.8 mm (1.76 in.) Special Tools Required
6-596-59
Valve, Spring, and Valve Seal
Installation
A
AB
07PAD-0010000
F
D
EC
8. Insert the intake and exhaust valves in the head, and measure the valve stem installed height (A).
9. If the valve stem installed height is beyond the service limit, replace the valve and recheck. If it is
still beyond the service limit, replace the cylinder
head, the valve seat in the head is too deep.  Stem seal driver 07PAD-0010000
 Valve spring compressor attachment 07757-PJ1010A
1. Coat the valve stems with new engine oil. Install the valves in the valve guides.
2. Check that the valves move up and down smoothly.
3. Install the spring seats on the cylinder head.
4. Install the new valve seals (A) using the 5.5 mm side of the stem seal driver (B).
NOTE: The exhaust valve seal (C) has a black spring
(D), and the intake valve seal (E) has a white spring
(F). They are not interchangeable.
(cont’d)
08/08/21 14:28:23 61SNR030_060_0059
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Intake Valve Stem Installed Height
Standard (New): 44.0 44.5 mm (1.73 1.75 in.)
Service Limit: 44.7 mm (1.76 in.)
Exhaust Valve Stem Installed Height
Standard (New): 44.1 44.6 mm (1.74 1.76 in.)
Service Limit: 44.8 mm (1.76 in.) Special Tools Required
6-596-59
Valve, Spring, and Valve Seal
Installation
A
AB
07PAD-0010000
F
D
EC
8. Insert the intake and exhaust valves in the head, and measure the valve stem installed height (A).
9. If the valve stem installed height is beyond the service limit, replace the valve and recheck. If it is
still beyond the service limit, replace the cylinder
head, the valve seat in the head is too deep.  Stem seal driver 07PAD-0010000
 Valve spring compressor attachment 07757-PJ1010A
1. Coat the valve stems with new engine oil. Install the valves in the valve guides.
2. Check that the valves move up and down smoothly.
3. Install the spring seats on the cylinder head.
4. Install the new valve seals (A) using the 5.5 mm side of the stem seal driver (B).
NOTE: The exhaust valve seal (C) has a black spring
(D), and the intake valve seal (E) has a white spring
(F). They are not interchangeable.
(cont’d)
08/08/21 14:28:23 61SNR030_060_0059
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Engine Oil Temperature: 80 °C (176 °F)
Engine Oil Pressure:
At Idle: 70 kPa (0.7 kgf/cm , 10 psi) min.
At 3,000 rpm: 300 kPa (3.1 kgf/cm , 44 psi) min.
K20Z2 engine
Capacity
AtOilChange:4.0L(4.2USqt)
At Oil Change including Filter: 4.2 L (4.4 US qt)
After Engine Overhaul: 5.3 L (5.6 US qt)
K20Z3 engine
Capacity
AtOilChange:4.2L(4.4USqt)
At Oil Change including Filter: 4.4 L (4.6 US qt)
After Engine Overhaul: 5.5 L (5.8 US qt)
2
2
8-108-10Engine Lubrication
Oil Pressure Test
Engine Oil Replacement
A A
39 N·m
(4.0 kgf·m, 29 lbf·ft)
B
NOTE: If the oil pressure warning indicator stays on
with the engine running, check the engine oil l
evel. If
the oil level is correct do the following test:
1. With the engine stopped, remove the oil pressure switch (see page 8-9), then install an oil pressure
gauge (A).
2. Start the engine. Shut it off immediately if the gauge registers no oil pressure. Repair the problem
before continuing.
3. Allow the engine to reach operating temperature (fan comes on at least twice). The pressure should
be:
4. If the oil pressure is out of specifications, inspect these items:
 Blocking of oil filter (see page 8-11).
 Blocking of oil screen.
 Inspect the oil pressure relief valve (see page 8-15).
 Inspect the oil pump (see page 8-17). 1. Warm up the engine.
2. Remove the drain bolt (A), and drain the engine oil.
3. Reinstall the drain bolt with a new washer (B).
4. Refill the engine with the recommended oil
(see page 3-2).
Do not overtighten.
08/08/21 14:36:43 61SNR030_080_0010
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 Special Tools Required
Tighten: 3/4 Turn Clockwise
Tightening Torque: 12 N·m (1.2 kgf·m, 8.7 lbf·ft)
8-118-11
Engine Oil Filter Replacement
A
B
07HAA-PJ70101
5. Run the engine for more than 3 minutes, then checkfor oil leakage.
6. Turn the ignition switch to LOCK (0).
7. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on page 11-3).
8. Turn the ignition switch to ON (II).
9. Make sure the HDS communicates with the vehicle and the engine control module (ECM)/powertrain
control module (PCM). If it does not communicate,
troubleshoot the DLC circuit (see page 11- 204).
10. Select GAUGES in the BODY ELECTRICAL menu with the HDS.
11. Select ADJUSTMENT in the GAUGES menu with the HDS.
12. Select SERVICE REMINDER in the ADJUSTMENT menu with the HDS.
13. Select RESET in the SERVICE REMINDER menu with the HDS.
14. Select RESETTING THE ENGINE OIL LIFE with the HDS.
NOTE: If you changed the automatic transmission
fluid (ATF) at the same time with the engine oil,
select RESETTING THE ENGINE OIL LIFE AND ATF
with the HDS instead. Oil filter wrench 07HAA-PJ70101
1. Remove the oil filter with the oil filter wrench.
2. Inspect the filter to make sure the rubber seal is not stuck to the oil filter seating surface of the engine.
3. Inspect the threads (A) and rubber seal (B) on the new filter. Clean the seat on the engine block, then
apply a light coat of new engine oil to the filter
rubber seal. Use only filters with a built-in bypass
system.
4. Install the oil filter by hand.
5. After the rubber seal seats, tighten the oil filter clockwise with the oil filter wrench.
(cont’d)
08/08/21 14:36:43 61SNR030_080_0011
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 Special Tools Required
Tighten: 3/4 Turn Clockwise
Tightening Torque: 12 N·m (1.2 kgf·m, 8.7 lbf·ft)
8-118-11
Engine Oil Filter Replacement
A
B
07HAA-PJ70101
5. Run the engine for more than 3 minutes, then checkfor oil leakage.
6. Turn the ignition switch to LOCK (0).
7. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on page 11-3).
8. Turn the ignition switch to ON (II).
9. Make sure the HDS communicates with the vehicle and the engine control module (ECM)/powertrain
control module (PCM). If it does not communicate,
troubleshoot the DLC circuit (see page 11- 204).
10. Select GAUGES in the BODY ELECTRICAL menu with the HDS.
11. Select ADJUSTMENT in the GAUGES menu with the HDS.
12. Select SERVICE REMINDER in the ADJUSTMENT menu with the HDS.
13. Select RESET in the SERVICE REMINDER menu with the HDS.
14. Select RESETTING THE ENGINE OIL LIFE with the HDS.
NOTE: If you changed the automatic transmission
fluid (ATF) at the same time with the engine oil,
select RESETTING THE ENGINE OIL LIFE AND ATF
with the HDS instead. Oil filter wrench 07HAA-PJ70101
1. Remove the oil filter with the oil filter wrench.
2. Inspect the filter to make sure the rubber seal is not stuck to the oil filter seating surface of the engine.
3. Inspect the threads (A) and rubber seal (B) on the new filter. Clean the seat on the engine block, then
apply a light coat of new engine oil to the filter
rubber seal. Use only filters with a built-in bypass
system.
4. Install the oil filter by hand.
5. After the rubber seal seats, tighten the oil filter clockwise with the oil filter wrench.
(cont’d)
08/08/21 14:36:43 61SNR030_080_0011
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i-VTEC
11-37
LOW SPEED CAMHIGH SPEED CAM
HIGH
ENGINE SPEED HIGH
LOW
LOW
ENGINE
LOAD
TORQUE CURVE
 The i-VTEC system has a variable valve timing control (VTC) mechanism on the intake camshaft in addition to the
usual VTEC.
This system improves fuel efficiency and reduces exhaust emissions at all levels of engine speed, vehicle speed,
and engine load.
 The VTEC system changes the valve lift and timing by using more than one cam profile.
 The VTC system changes the phase of the intake camshaft via oil pressure. It changes the intake valve timing continuously.
Driving Condition VTC Control Description
Light-load Base Position For stable combustion, the cam angle is retarded, and reduces the entry of exhaust gas into the cylinder.
Medium/high-load Advance Control Cam phase angle is controlled to optimize valve timing, improving fuel efficiency and reducing
emissions.
High speed Advance-Base Position To reduce pumping loss, the intake valve is closed quickly. This gives the air/fuel mixture a charging
effect that helps to maximize engine power.
(cont’d)
08/08/21 14:13:39 61SNR030_110_0037
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11-119
12. Turn the ignition switch to LOCK (0).
13. Exchange the ignition coil from the problem
cylinder with one from another cylinder.
14. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
 ENGINE S PEED
 VSS
 REL TP SENSOR
 CLV (calculated load value)
 APP SENSOR
15. Check the CYL1 MISFIRE, CYL2 MISFIRE, CYL3 MISFIRE, and/or CYL4 MISFIRE in the DATA LIST
for 10 minutes with the HDS.
Go to step 16.
Intermittent misfire due to poor contact at an
ignition coil connector(s). (no misfire at this time).
Check for poor connections or loose terminals at
the ignition coils.
16. Determine which cylinder had the misfire.
Replace the faulty ignition coil (see page
4-21), then go to step 60.
Go to step 17.
17. Turn the ignition switch to LOCK (0).
18. Exchange the spark plug from the problem cylinder with one from another cylinder.
19. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
 ENGINE S PEED
 VSS
 REL TP SENSOR
 CLV (calculated load value)
 APP SENSOR 20. Check the CYL1 MISFIRE, CYL2 MISFIRE, CYL3
MISFIRE, and/or CYL4 MISFIRE in the DATA LIST
for 10 minutes with the HDS.
Go to step 21.
Intermittent misfire due to spark plug fouling
(no misfire at this time).
21. Determine which cylinder had the misfire.
Replace the faulty spark plug, then go to step
60.
Go to step 22.
22. Turn the ignition switch to LOCK (0).
23. Exchange the injector from the problem cylinder with one from the another cylinder.
24. Start the engine, and let it idle for 2 minutes.
25. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
 ENGINE S PEED
 VSS
 REL TP SENSOR
 CLV (calculated load value)
 APP SENSOR
26. Check the CYL1 MISFIRE, CYL2 MISFIRE, CYL3 MISFIRE, and/or CYL4 MISFIRE in the DATA LIST
for 10 minutes with the HDS.
Go to step 27.
Intermittent misfire due to bad contact at an
injector connector (no misfire at this time). Check
for poor connections or loose terminals at the
injector(s).
(cont’d)
Does the CYL1 MISFIRE, CYL2 MISFIRE, CYL3M I SF I RE , and / or CY L4 M I SF I RE show mi sf i r ecounts?
Does the misf ir e occur in the cylinder wher e thei gni t i on coi l w as ex changed ? Does the CYL1 MISFIRE, CYL2 MISFIRE, CYL3
M I SF I RE , and / or CY L4 M I SF I RE show mi sf i r ecounts?
Does the misf ir e occur in the cylinder wher e thespar k pl ug w as ex changed ?
Does the CYL1 MISFIRE, CYL2 MISFIRE, CYL3M I SF I RE , and / or CY L4 M I SF I RE show mi sf i r ecounts?
08/08/21 14:17:25 61SNR030_110_0119
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11-120PGM-FI System
DTC Troubleshooting (cont’d)
IGNITION COIL 3P CONNECTOR
IG1 (BLK/WHT) IGNITION COIL 3P CONNECTOR
GND
(BLK)
27. Determine which cylinder had the misfire.
Replace the faulty injector (see page 11-219),
then go to step 60.
Go to step 28.
28. Turn the ignition switch to LOCK (0).
29. Disconnect the ignition coil 3P connector from the problem cylinder.
30. Turn the ignition switch to ON (II).
31. Measure the voltage between ignition coil 3P connector terminal No. 3 and body ground.
Go to step 32.
Repair open in the wire between the ignition
coil and the ignition coil relay, then go to step 60. 32. Turn the ignition switch to LOCK (0).
33. Check for continuity between ignition coil 3P
connector terminal No. 2 and body ground.
Go to step 34.
Repair open in the wire between the ignition
coil and G101, then go to step 60.
Wire side of female terminals Wire side of female terminals
Does the misf ir e occur in the cylinder wher e the
i nj ect or w as ex changed ?
Is there battery voltage? Is there continuity?
08/08/21 14:17:26 61SNR030_110_0120
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