Technical Service Bulletin

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S-SB-0010-13 February 28, 2013 w Scion

Brief Engine Knock/Rattle Noise at Cold Startup

Service
Category Engine/Hybrid System
Scion Supports FASE

Section Engine Mechanical Market USA ASE Certification
Applicability

YEAR(S) MODEL(S) ADDITIONAL INFORMATION

2011 — 2012 tC VDS(s): JF5C7

WM\(s): JTK

Introduction

Immediately following a cold soak startup, some 2011 — 2012 model year vehicles equipped with the
2AR-FE engine may exhibit a brief knock/rattle noise from the engine compartment for approximately
one second. Follow the repair procedure below to address this condition.

Production Change Information

This bulletin applies to vehicles produced BEFORE the Production Change Effective VIN shown
below.

MODEL DRIVETRAIN PLANT PRODUCTION CHANGE EFFECTIVE VIN
tc 2wWD Tsutsumi JTKJF5C7#C3032648

Warranty Information

OP CODE DESCRIPTION TIME OFP m1 «| 12
13050-36011

140021 R & R Camshaft Timing Gear Assembly 2.5 13050-36030 06 | 40
13050-0V011

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 occurrence of the specified condition described in this
bulletin.

© 2013 Toyota Motor Sales, USA Page 1 of 14

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Brief Engine Knock/Rattle Noise at Cold Startup

Parts Information

PART NUMBER PART NUMBER PART NAME ony
13050-36011
13050-36030 13050-0V040 Gear Assembly, Camshaft Timing 1
13050-0V011
11213-36020 Same Gasket, Cylinder Head Cover 1
11159-36011 11159-0V011 Gasket, Camshaft Bearing Cap Oil Hole No. 1 2
90430-10024 90430-A0001 Gasket, Camshaft Bearing Cap Oil Hole No. 2 1
11328-36020 11328-0V010 Gasket, Timing Chain Tensioner 1
11329-36010 Same Gasket, Timing Chain Cover, No. 2 1
13552-36010 13552-0V010 Gasket (for Chain Tensioner) 1
Required Tools & Equipment
SPECIAL SERVICE TOOLS (SST) PART NUMBER ary
Torque Wrench Adapter* 09249-63010-01 i
REQUIRED MATERIALS ary
FIPG Sealant: Three Bond 1207B, or Equivalent As Needed
REQUIRED EQUIPMENT SUPPLIER PART NUMBER ary
Techstream 2.0° TS2UNIT
TIS Techstream ADE TSPKG1 1
Techstream Lite TSLITEDLRO1
NOTE
+ Only ONE of the Techstream units listed above is required.
+ Software version 8.00.034 or later is required.
* Additional SSTs may be ordered by calling 1-800-933-8335.
* Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE) at
1-800-368-6787.

* Essential SST.

© 2013 Toyota Motor Sales, USA

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Brief Engine Knock/Rattle Noise at Cold Startup

Repair Procedure

il

3.

Confirm the brief knock/rattle noise condition. See attached video for an example of the engine
knock/rattle noise: H

Engine Knock/Rattle Noise Example

. Remove the cylinder head cover. Figure 1.

A. Relocate the engine harness that lies across
the top of the cylinder head cover.

B. Remove the ignition coils.

C. Remove the 16 bolts and cylinder head cover.

Remove the chain tensioner.

A. Remove the right front wheel.

B. Remove the front fender apron seal RH.

C. Remove the V-ribbed belt for the vane pump.
D.

. Rotate the crankshaft clockwise and set the No. 1 cylinder at +10° from the TDC/compression.

m

. After the timing marks are aligned on the VVT Figure 2.
gear, place paint marks on the chain and both
gears.

1 Paint Marks

2 | Timing Marks

© 2013 Toyota Motor Sales, USA

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Brief Engine Knock/Rattle Noise at Cold Startup

February 28, 2013

Page 4 of 14

Repair Procedure (Continued)

F. Rotate the crankshaft counterclockwise by 10° and loosen the tension of the chain.

G. Remove the timing chain cover plate.

H. Align the holes of the stopper plate and
tensioner, and insert a pin into the stopper
plate hole to lock the tensioner.

|. Remove the 2 bolts and chain tensioner.

4. Remove the timing chain guide by removing the
bolt.

Figure 3.

1 | Stopper Plate

2 | Timing Tensioner

Figure 4.

© 2013 Toyota Motor Sales, USA

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Brief Engine Knock/Rattle Noise at Cold Startup

Repair Procedure (Continued)

5. Remove the intake side VVT gear.

A. Remove the service hole plug. Figure 5.

Ped
(aegis

4.6
[+] Service Hole Plug

B. Insert the tool through the service hole and Figure 6.
remove the bolt of the intake VVT gear while
holding the camshaft stationary with a wrench.

NOTICE

* Be careful NOT to damage the cylinder
head or spark plug tube with the
wrench.

* Do NOT disassemble the camshaft
timing gear.

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Brief Engine Knock/Rattle Noise at Cold Startup

Repair Procedure (Continued)

C. After the VVT gear is slid in the arrow direction Figure 7.
as shown in Figure 7, lower the VVT gear and
remove the chain from the VVT gear.

D. Remove the VVT gear from the cam housing.

E. Tie the timing chain to ensure it stays properly aligned with the exhaust and crankshaft
timing gear pulleys.

NOTICE

The VVT gear bolts may interfere with the — Figure 8.
housing during removal. After the VVT
gear slides out from the camshaft, carefully
rotate the VVT gear to the position shown in
Figure 8 to avoid interference and remove
it in the arrow direction shown.

© 2013 Toyota Motor Sales, USA

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Brief Engine Knock/Rattle Noise at Cold Startup