T-SB-0115-22

T-SB-0115-22
December 22, 2022
Knocking Noise From Vacuum Pump at Idle
Service
Category
Engine/Hybrid System
Section
Engine Mechanical
Market USA and Mexico
Applicability
YEAR(S)
MODEL(S)
2019 - 2022
Avalon
2018 - 2023
Camry
2017 - 2022
Highlander
2017 - 2020
Sienna
2016 - 2023
Tacoma
ADDITIONAL INFORMATION
SUPERSESSION NOTICE
The information contained in this bulletin supersedes Service Bulletin No. T-SB-0316-17.
 Applicability has been updated to include 2019 – 2022 model year Avalon, 2020 – 2023 Camry,
2020 – 2022 Highlander, 2020 Sienna, and 2020 – 2023 Tacoma vehicles.
 The market indicator has been updated to include the Mexico market.
 The Warranty Information and Repair Procedure sections have been updated.
Service Bulletin No. T-SB-0316-17 is obsolete and any printed versions should be discarded.
Introduction
Some 2019 – 2022 model year Avalon, 2018 – 2023 model year Camry, 2017 – 2022 model year
Highlander, 2017 – 2020 model year Sienna, and 2016 – 2023 model year Tacoma vehicles
equipped with a 2GR-FKS engine may exhibit a knocking noise from the vacuum pump at idle.
Follow the Repair Procedure in this bulletin to address this condition.
© 2022 Toyota Motor Sales, USA
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December 22, 2022
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Knocking Noise From Vacuum Pump at Idle
Table of Contents


Warranty Information ...............................................................................................................3

For USA Market .................................................................................................................3

For Mexico Market .............................................................................................................3
Parts Information .....................................................................................................................4

For USA and Mexico Markets.............................................................................................4

Required Tools & Equipment ...................................................................................................4

Repair Procedure ....................................................................................................................5
© 2022 Toyota Motor Sales, USA
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December 22, 2022
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Knocking Noise From Vacuum Pump at Idle
Warranty Information
For USA Market
OP CODE
MODEL
MODEL YEAR
Avalon
2019 – 2022
1.8
Camry
2018 – 2023
1.8
2017 – 2019
BR1702
Highlander
2020 – 2022
DESCRIPTION
R&R
Vacuum Pump
TIME
OFP
T1
T2
29300-#####*
91
99
2.4
1.5
Sienna
2017 – 2020
1.7
Tacoma
2016 – 2023
1.8
*Warranty claim MUST be submitted with the correct 10-digit OFP. Choose the correct OFP for the vehicle being
repaired by searching for the parts in the Electronic Parts Catalog using the VIN filter.
APPLICABLE WARRANTY (USA)
 This repair is covered under the Toyota Basic Warranty. This warranty is in effect for
36 months or 36,000 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.
For Mexico Market
OP CODE
MODEL
MODEL YEAR
Avalon
2019 – 2022
1.8
Camry
2018 – 2023
1.8
2017 – 2019
BR1702
Highlander
2020 – 2022
DESCRIPTION
R&R
Vacuum Pump
TIME
OFP
T1
T2
29300-#####*
91
99
2.4
1.5
Sienna
2017 – 2020
1.7
Tacoma
2016 – 2023
1.8
*Warranty claim MUST be submitted with the correct 10-digit OFP. Choose the correct OFP for the vehicle being
repaired by searching for the parts in the Electronic Parts Catalog using the VIN filter.
APPLICABLE WARRANTY (MEXICO)
 This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36 months
or 60,000 kilometers, whichever occurs first, from the vehicle’s in-service date.
 Warranty application is limited to occurrence of the specified condition described in
this bulletin.
© 2022 Toyota Motor Sales, USA
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December 22, 2022
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Knocking Noise From Vacuum Pump at Idle
Parts Information
For USA and Mexico Markets
PART NUMBER
MODEL
PREVIOUS
NEW
29300-0P010
29300-0P011
29300-31040
PART NAME
QTY
Avalon, Camry,
Highlander, Sienna
1
Pump Assy, Vacuum
29300-0P020
29300-0P021
29300-31050
Tacoma
1
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
PART NUMBER
Techstream ADVI*
QTY
TSADVUNIT
Techstream 2.0
TS2UNIT
ADE
1
Techstream Lite
TSLITEPDLR01
Techstream Lite (Green Cable)
TSLP2DLR01
*Essential SST.
NOTE
 Only ONE of the Techstream units listed above is required.
 Software version 17.30.011 or later is required.
 Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787 (USA) or 01-55-50103041 (Mexico).
 Use Techstream or an approved J2534 interface to perform flash reprogramming updates.
Visit techinfo.toyota.com for more information regarding J2534 reprogramming.
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
Analogue Vacuum Gauge*
–
1
Stethoscope*
–
1
Picoscope Automotive Pressure Transducer Kit (Optional)
PIOKP355
1
*Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-933-8335 (USA) or 01-800-504-5330 (Mexico).
© 2022 Toyota Motor Sales, USA
T-SB-0115-22
December 22, 2022
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Knocking Noise From Vacuum Pump at Idle
Repair Procedure
1. Is the vehicle a 2016 – 2023 model year
Tacoma vehicle?


Figure 1. Overhead Console in Vehicle With
Crawl Control
YES — Continue to step 2.
NO — Go to step 3.
2. Is the vehicle equipped with crawl control?


YES — This bulletin does NOT apply.
Continue diagnosis using the
applicable Repair Manual.
NO — Continue to step 3.
1
c
3. Confirm a knocking noise can be heard
from the vacuum pump at idle. Refer to
the audio link below for an example of the
knocking noise condition:
Knocking Noise Example
Can a knocking noise be heard from the
vacuum pump at idle?


YES — Continue to step 4.
NO — This bulletin does NOT apply.
Continue diagnosis using the
applicable Repair Manual.
1
Crawl Control
Figure 2. Overhead Console in Vehicle Not
Equipped With Crawl Control
© 2022 Toyota Motor Sales, USA
T-SB-0115-22
December 22, 2022
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Knocking Noise From Vacuum Pump at Idle
Repair Procedure (continued)
4. Using a stethoscope, check for the source of the noise with the vehicle hood open.
Is the noise loudest at the bank 1 head cover near the high-pressure fuel pump?


YES — Continue to step 5.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
Figure 3.
2
c
1
3
c
1
Vacuum Pump
2
High-pressure Fuel Pump
3
Noise Check Point
5. Check for ANY vacuum leaks.
A. Disconnect a vacuum hose between the
vacuum pump and brake booster.
B. Install a vacuum gauge with T-fitting
in-line to measure the system vacuum.
Figure 4.
3
5
2
1
NOTE
An additional hose may be helpful to
install the vacuum gauge in-line.
Refer to TIS, applicable model and
model year Repair Manual:

2019 – 2022 Avalon:
Brake – Brake System – “Brake
System (Other): Vacuum Pump (for
2GR-FKS): On-vehicle Inspection”
1
Vacuum Pump
2
Vacuum Gauge With T-fitting
3
Vacuum Gauge
4
Brake Booster
5
Pinch Here
© 2022 Toyota Motor Sales, USA
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December 22, 2022
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Knocking Noise From Vacuum Pump at Idle
Repair Procedure (continued)

2018 – 2023 Camry:
Brake – Brake System – “Brake System (Other): Vacuum Pump (for 2GR-FKS):
On-vehicle Inspection”

2017 – 2019 Highlander:
Brake – Brake System – “Brake System (Other): Vacuum Pump: On-vehicle Inspection”

2020 – 2022 Highlander:
Brake – Brake System – “Brake System (Other): Vacuum Pump: On-vehicle Inspection”

2017 – 2020 Sienna:
Brake – Brake System – “Brake System (Other): Vacuum Pump: On-vehicle Inspection”

2016 – 2023 Tacoma:
Brake – Brake System – “Brake: Vacuum Pump: On-vehicle Inspection”
C. Connect the vehicle to Techstream.
D. With the engine running and the coolant temperature between 14 – 140°F (-10 – 60°C),
pinch or plug the booster side to confirm vacuum operation.
Does the reading measure AT LEAST -86.7 kPa (-25.60 in. Hg)?


YES — Continue to substep E.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
E. Remove the pinch/plug and measure the vacuum of the entire system.
Does the reading on the gauge measure AT LEAST -86.7 kPa (-25.60 in. Hg)?


YES — Continue to substep F.
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
F. Press the brake pedal to the end of the
stroke three times to completely
consume vacuum.
Figure 5. Press the Brake Pedal Three Times
© 2022 Toyota Motor Sales, USA
T-SB-0115-22
December 22, 2022
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Knocking Noise From Vacuum Pump at Idle
Repair Procedure (continued)
G. Release the brake pedal and
IMMEDIATELY monitor the vacuum
level on the gauge.
Figure 6. Release the Brake Pedal
H. Is the noise heard while the
vacuum level is -80 through -95kPa
(-23.6 through -28.05 in. Hg)?
Figure 7.


YES — Continue to step 6.
NO — This bulletin does NOT apply.
Continue diagnosis using the
applicable Repair Manual.
1
1
Noise Area
6. Remove the vacuum pump assembly.
Refer to TIS, applicable model and model year Repair Manual:

2019 – 2022 Avalon:
Brake – Brake System – “Brake System (Other): Vacuum Pump (for 2GR-FKS): Removal”

2018 – 2023 Camry:
Brake – Brake System – “Brake System (Other): Vacuum Pump (for 2GR-FKS): Removal”

2017 – 2019 Highlander:
Brake – Brake System – “Brake System (Other): Vacuum Pump: Removal”

2020 – 2022 Highlander:
Brake – Brake System – “Brake System (Other): Vacuum Pump: Removal”

2017 – 2020 Sienna:
Brake – Brake System – “Brake System (Other): Vacuum Pump: Removal”

2016 – 2023 Tacoma:
Brake – Brake System – “Brake: Vacuum Pump: Removal”
© 2022 Toyota Motor Sales, USA
T-SB-0115-22
December 22, 2022
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Knocking Noise From Vacuum Pump at Idle
Repair Procedure (continued)
7. Install the NEW vacuum pump assembly.
Refer to TIS, applicable model and model year Repair Manual:

2019 – 2022 Avalon:
Brake – Brake System – “Brake System (Other): Vacuum Pump (for 2GR-FKS): Installation”

2018 – 2023 Camry:
Brake – Brake System – “Brake System (Other): Vacuum Pump (for 2GR-FKS): Installation”

2017 – 2019 Highlander:
Brake – Brake System – “Brake System (Other): Vacuum Pump: Installation”

2020 – 2022 Highlander:
Brake – Brake System – “Brake System (Other): Vacuum Pump: Installation”

2017 – 2020 Sienna:
Brake – Brake System – “Brake System (Other): Vacuum Pump: Installation”

2016 – 2023 Tacoma:
Brake – Brake System – “Brake: Vacuum Pump: Installation”
8. Confirm that the knocking noise is reduced.
© 2022 Toyota Motor Sales, USA