Engine - Oil Leaks From The Timing Cover

T-SB-0326-08

October 24, 2008

Oil Leak From Front Timing Cover

Service Category
Engine/Hybrid System

Section
Engine Mechanical

Market
USA





Applicability

TSB SUPERSESSION NOTICE
The information contained in this TSB supersedes TSB No. EG051-07

- The OFP in the Warranty Information table has been updated.

TSB No. EG051-07 is Obsolete and any printed versions should be discarded. Be sure to review the entire content of this service bulletin before proceeding.

Introduction

Some 2005 - 2008 model year Tacoma vehicles with 1GR FE engines may display evidence of a small oil leak located where the Bank 1 cylinder head, engine block, and timing cover meet. Use the following repair procedure to address this condition.





Warranty Information

APPLICABLE WARRANTY

- This repair is covered under the Toyota Powertrain Warranty. This warranty is in effect for 60 months or 60,000 miles, whichever occurs first, from the vehicle's in-service date.

- Warranty application is limited to correction of a problem based upon a customer's specific complaint.

Production Change Information





This TSB applies to vehicles produced BEFORE the Production Change Effective VINs shown above.








Required Tools & Equipment

NOTE:
Additional SSTs may be ordered by calling SPX/OTC.

Repair Procedure

1. Inspect the location where the Bank 1 cylinder head, engine block, and timing cover meet for signs of an oil leak.





2. Use an oil dye to confirm the source of the oil leak.

3. Remove and reseal the timing cover if confirmed leaking. Refer to the Technical Information System (TIS):

2005 model year Tacoma Repair Manual,

- Engine/Hybrid System - Engine Mechanical - "Timing Chain or Belt Cover Sub Assy (1GR FE(2WD)): Replacement"

- Engine/Hybrid System - Engine Mechanical - "Timing Chain or Belt Cover Sub Assy (1GR FE(PRE Runner/4wd)): Replacement"

2006, 2007, or 2008 model year Tacoma Repair Manual,

- 2006/2007/2008 Engine/Hybrid System - Lubrication - "1GR FE Lubrication: Oil Pump (for 4WD and PreRunner): Removal"

- 2006/2007/2008 Engine/Hybrid System - Lubrication - "1GR FE Lubrication: Oil Pump (for 2wd): Removal"

- 2006/2007/2008 Engine/Hybrid System - Lubrication - "1GR FE Lubrication: Oil Pump (for 4WD and PreRunner): Installation"

- 2006/2007/2008 Engine/Hybrid System - Lubrication - "1GR FE Lubrication: Oil Pump (for 2wd): Installation"

4. Confirm that the repair corrected the condition.