***Acura Truck RDX AWD L4-2.3L Turbo Technical Service Bulletin # 10-049 Date: 101124
Engine - Oil Leaks From The Cylinder Head Cover
10-049
November 24, 2010
Applies To:
2007-10 RDX- ALL
2011 RDX 2WD - From VIN 5J8TB2...BA000001 thru 5J8TB2...BA001016
2011 RDX 4WD - From VIN 5J8TB1...BA000001 thru 5J8TB1...BA000980
Engine Oil Leak at the Cylinder Head Cover
SYMPTOM
The cylinder head cover is leaking engine oil.
PROBABLE CAUSE
There is paint overspray in the gasket groove in the cylinder head cover.
CORRECTIVE ACTION
Remove the cylinder head cover, and sand away the paint overspray.
REQUIRED MATERIALS
Liquid Gasket: P/N 08717-0004
TOOL INFORMATION
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1/8 inch thick plastic putty spreader, cut to the dimensions below (commercially available).
WARRANTY CLAIM INFORMATION
The normal warranty applies.
Failed Part: P/N 12310-RWC-A00
Defect Code: 08103
Symptom Code: 05101
Skill Level: Repair Technician
DIAGNOSIS
Is there engine oil leaking from the cylinder head cover in the area marked below?
Yes - Go to REPAIR PROCEDURE.
No - This service bulletin does not apply. Continue with normal troubleshooting to find the source of the engine oil leak.
REPAIR PROCEDURE
1. Remove the charge air cooler cover.
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2. Disconnect the turbocharger boost sensor connector.
3. Disconnect the vacuum hoses and the air bypass outlet connecting tube.
4. Remove the charge air cooler assembly.
5. Remove the fuel injector cover.
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6. Disconnect the ignition coil connectors, then remove the ignition coils.
7. Remove the power steering hose bracket, the breather hose, and the engine oil dipstick.
8. Remove the four bracket mounting bolts from the cylinder head cover.
9. Disconnect the rocker arm oil control solenoid connector, the rocker arm oil pressure switch connector, and the VTC oil control solenoid valve
connector. Disconnect the harness clamp.
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10. Disconnect the A/F sensor connector, the oil pressure switch connector, and the CKP sensor connector. Disconnect the harness clamps.
11. Remove the cylinder head cover, and check the gasket groove.
Is there paint overspray in the cylinder head cover gasket groove?
Yes - Go to the next step.
No - This service bulletin does not apply. Continue with normal troubleshooting to find the source of the engine oil leak.
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12. Wrap a 1-1/2-inch-wide strip of 120 grit sandpaper around the putty spreader tool. Insert it into the cylinder head cover gasket groove where
there is paint overspray. Sand the groove until the paint overspray is removed.
13. Clean the cylinder head cover and the gasket. Replace the gasket if needed.
14. Check the spark plug seals for damage. If any seal is damaged, replace it.
15. Remove all of the old liquid gasket from the rocker shaft holder and the cylinder head.
16. Apply liquid gasket on the cam chain case, and the No. 5 rocker shaft holder mating areas. Install the cylinder head cover within 5 minutes of
applying the liquid gasket.
NOTE:
If too much time has passed after applying the liquid gasket, remove it and reapply.
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17. Reinstall the original head cover gasket into the cylinder head cover.
18. Set the spark plug seals on the spark plug tubes. Place the cylinder head cover on the cylinder head, then slide the cover slightly back and forth
to seat the head cover gasket.
19. Inspect the cylinder head cover washers. Replace any washer that is damaged or deteriorated.
20. Tighten the cylinder head cover bolts in three steps. In the final step, torque all bolts, in sequence, to 12 N.m (9 lb-ft).
NOTE:
Do not run the engine for at least 3 hours after installing the cylinder head cover.
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21. Reconnect the A/F sensor connector, the oil pressure switch connector, and the CKP sensor connector. Reconnect the harness clamps.
22. Reconnect the rocker arm oil control solenoid connector, the rocker arm oil pressure switch connector, and the VTC oil control solenoid valve
connector. Reconnect the harness clamp.
23. Reinstall the four bracket mounting bolts to the cylinder head cover, and torque them to 12 N.m (9 lb-ft).
24. Reinstall the power steering hose bracket, and torque the bolt to 12 N.m (9 lb-ft). Reinstall the breather hose, and the engine oil dipstick.
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25. Reinstall the four ignition coils, then reinstall and reconnect the ignition coil connectors.
26. Reinstall the fuel injector cover.
27. Reconnect the vacuum hoses and the air bypass outlet connecting tube.
28. Reinstall the charge air cooler assembly.
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29. Reconnect the turbocharger boost sensor connector.
30. Reinstall the charge air cooler cover.
31. Start the engine, and check for leaks.
