How to remove fuel injectors and Fuel Rail on Toyota Sienna?

To remove the fuel injectors, first relieve the fuel pressure and detach the cable from the negative terminal of the battery, then remove the V-bank cover. For 2006 and earlier models, take off the PCV hose, remove the assembly retaining the Vacuum Switching Valve control solenoids by taking off the two nuts and positioning the assembly aside, and then remove the air intake plenum to access the rear fuel rail. Disconnect the fuel injector electrical connectors and set the injector wire harness aside, then disconnect the fuel inlet hose from the fuel pump for 2000 and earlier models or the fuel line for 2001 and later models, ensuring to unlock the quick-connect fittings if applicable. For 2007 and later models, remove the upper intake manifold, pinch the tabs on the fuel inlet tube connector to disconnect it, and set the fuel injector wire harness aside. For all models, remove the fuel rail mounting bolts and then the fuel rail with the fuel injectors attached, carefully pulling up while rocking back and forth to work the injectors out. Remove the fuel injector(s) from the fuel rail by simultaneously twisting and pulling, and set them aside in a clearly labeled storage container. If reusing the same injectors, replace the grommets and O-rings, discarding the old ones if reinstalling the original injectors. For installation, follow the reverse order of removal, ensuring spacers are in place between the intake manifold and the fuel rails, and tighten the fuel rail mounting bolts.

Genuine Toyota Sienna Fuel Injector

Gas Injector

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26 Fuel Injectors found

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Toyota Sienna INJECTOR Set, Fuel
Part Number: 23209-39175
$137.11 MSRP: $194.92
You Save: $57.81 (30%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injector Assy, Fuel
- Replaced by: 23209-09175
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2014 Toyota Sienna | LE, SE, STD, XLE | 4 Cyl 2.7L, 6 Cyl 3.5L | 1ARFE, 2GRFE; ASL30L-PFTEKA, ASL30L-PRTEKA, GSL30L-PFTDKA, GSL30L-PFTEKA, GSL30L-PFTQKA, GSL30L-PRTEKA, GSL30L-PRTQKA, GSL30L-PRTSKA, GSL33L-SBTDKA, GSL35L-PFTDKA, GSL35L-PFTEKA, GSL35L-PFTQKA
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Toyota Sienna INJECTOR Set,Fuel
Part Number: 23209-09175
$137.11 MSRP: $194.92
You Save: $57.81 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector Assy, Fuel; Injector
- Replaces: 23209-39175
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2014 Toyota Sienna | LE, SE, STD, XLE | 4 Cyl 2.7L, 6 Cyl 3.5L | 1ARFE, 2GRFE; ASL30L-PFTEKA, ASL30L-PRTEKA, GSL30L-PFTDKA, GSL30L-PFTEKA, GSL30L-PFTQKA, GSL30L-PRTEKA, GSL30L-PRTQKA, GSL30L-PRTSKA, GSL33L-SBTDKA, GSL35L-PFTDKA, GSL35L-PFTEKA, GSL35L-PFTQKA
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Toyota Sienna INJECTOR Set, Fuel
Part Number: 23209-09330
$164.14 MSRP: $233.35
You Save: $69.21 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector Assy, Fuel; Injector
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2020 Toyota Sienna | LE, SE, STD, XLE | 6 Cyl 3.5L | 2GRFE, 2GRFKS; GSL30L-PFTDKA, GSL30L-PFTEKA, GSL30L-PFTQKA, GSL30L-PFZDHA, GSL30L-PFZEHA, GSL30L-PFZQHA, GSL30L-PRTEKA, GSL30L-PRTQKA, GSL30L-PRTSKA, GSL30L-PRZEHA, GSL30L-PRZQHA, GSL30L-PRZSHA, GSL33L-SBTDKA, GSL33L-SBZDHA, GSL33L-SEZDHA, GSL35L-PFTEKA, GSL35L-PFTQKA, GSL35L-PFZEHA, GSL35L-PFZQHA, GSL35L-PFZSHA
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Toyota Sienna INJECTOR Set, Fuel
Part Number: 23209-0P090-01
$301.70 MSRP: $432.62
You Save: $130.92 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector Assy, Fuel; Injector
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2020 Toyota Sienna | LE, SE, STD, XLE | 6 Cyl 3.5L | 2GRFE, 2GRFKS; GSL30L-PFTDKA, GSL30L-PFTEKA, GSL30L-PFTQKA, GSL30L-PFZDHA, GSL30L-PFZEHA, GSL30L-PFZQHA, GSL30L-PRTEKA, GSL30L-PRTQKA, GSL30L-PRTSKA, GSL30L-PRZEHA, GSL30L-PRZQHA, GSL30L-PRZSHA, GSL33L-SBTDKA, GSL33L-SBZDHA, GSL33L-SEZDHA, GSL35L-PFTEKA, GSL35L-PFTQKA, GSL35L-PFZEHA, GSL35L-PFZQHA, GSL35L-PFZSHA
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Toyota Sienna Injector Assy, Fuel
Part Number: 23209-31050
$154.55 MSRP: $219.72
You Save: $65.17 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: (J)
- Replaced by: 23209-0P040
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2006-2010 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 3MZFE; GSL20L-PFADKK, GSL20L-PFAEKA, GSL20L-PFAEKK, GSL20L-PFAQKA, GSL20L-PFAQKK, GSL20L-PRADKK, GSL20L-PRAEKA, GSL20L-PRAEKK, GSL20L-PRAQKA, GSL20L-PRAQKK, GSL23L-SBADKA, GSL23L-SBADKK, GSL25L-PFADKK, GSL25L-PFAEKA, GSL25L-PFAEKK, GSL25L-PFAQKA, GSL25L-PFAQKK, MCL20L-PFADKK, MCL20L-PFAEKA, MCL20L-PFAEKK, MCL20L-PFAQKA, MCL20L-PFAQKK, MCL20L-PRADKK, MCL20L-PRAEKA, MCL20L-PRAEKK, MCL20L-PRAQKA, MCL20L-PRAQKK, MCL23L-SBADKA, MCL23L-SBADKK, MCL25L-PFADKK, MCL25L-PFAEKA, MCL25L-PFAEKK, MCL25L-PFAQKA, MCL25L-PFAQKK
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Toyota Sienna Injector Assy, Fuel
Part Number: 23209-0A020
$160.16 MSRP: $227.70
You Save: $67.54 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector
- Manufacturer Note: (L)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2007 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 3MZFE; GSL20L-PFADKK, GSL20L-PFAEKA, GSL20L-PFAEKK, GSL20L-PFAQKA, GSL20L-PFAQKK, GSL20L-PRADKK, GSL20L-PRAEKA, GSL20L-PRAEKK, GSL20L-PRAQKA, GSL20L-PRAQKK, GSL23L-SBADKA, GSL23L-SBADKK, GSL25L-PFADKK, GSL25L-PFAEKA, GSL25L-PFAEKK, GSL25L-PFAQKA, GSL25L-PFAQKK, MCL20L-PFADKK, MCL20L-PFAEKA, MCL20L-PFAEKK, MCL20L-PFAQKA, MCL20L-PFAQKK, MCL20L-PRADKK, MCL20L-PRAEKA, MCL20L-PRAEKK, MCL20L-PRAQKA, MCL20L-PRAQKK, MCL23L-SBADKA, MCL23L-SBADKK, MCL25L-PFADKK, MCL25L-PFAEKA, MCL25L-PFAEKK, MCL25L-PFAQKA, MCL25L-PFAQKK
View related parts
Toyota Sienna INJECTOR Set, Fuel
Part Number: 23209-0P010
$143.20 MSRP: $203.58
You Save: $60.38 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector Assy, Fuel; Injector
- Manufacturer Note: (L)
- Replaces: 23209-31090
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2017 Toyota Sienna | LE, SE, STD, XLE | 4 Cyl 2.7L, 6 Cyl 3.5L | 1ARFE, 2GRFE, 2GRFKS; ASL30L-PFTEKA, ASL30L-PRTEKA, GSL30L-PFTDKA, GSL30L-PFTEKA, GSL30L-PFTQKA, GSL30L-PFZDHA, GSL30L-PFZEHA, GSL30L-PFZQHA, GSL30L-PRTEKA, GSL30L-PRTQKA, GSL30L-PRTSKA, GSL30L-PRZEHA, GSL30L-PRZQHA, GSL30L-PRZSHA, GSL33L-SBTDKA, GSL33L-SBZDHA, GSL33L-SEZDHA, GSL35L-PFTDKA, GSL35L-PFTEKA, GSL35L-PFTQKA, GSL35L-PFZEHA, GSL35L-PFZQHA
View related parts
Toyota Sienna Injector Assy, Fuel
Part Number: 23209-0P040
$154.55 MSRP: $219.72
You Save: $65.17 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector
- Manufacturer Note: (L)
- Replaces: 23209-31050
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2006-2010 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 3MZFE; GSL20L-PFADKK, GSL20L-PFAEKA, GSL20L-PFAEKK, GSL20L-PFAQKA, GSL20L-PFAQKK, GSL20L-PRADKK, GSL20L-PRAEKA, GSL20L-PRAEKK, GSL20L-PRAQKA, GSL20L-PRAQKK, GSL23L-SBADKA, GSL23L-SBADKK, GSL25L-PFADKK, GSL25L-PFAEKA, GSL25L-PFAEKK, GSL25L-PFAQKA, GSL25L-PFAQKK, MCL20L-PFADKK, MCL20L-PFAEKA, MCL20L-PFAEKK, MCL20L-PFAQKA, MCL20L-PFAQKK, MCL20L-PRADKK, MCL20L-PRAEKA, MCL20L-PRAEKK, MCL20L-PRAQKA, MCL20L-PRAQKK, MCL23L-SBADKA, MCL23L-SBADKK, MCL25L-PFADKK, MCL25L-PFAEKA, MCL25L-PFAEKK, MCL25L-PFAQKA, MCL25L-PFAQKK
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Toyota Sienna Injector Assy, Fuel
Part Number: 23209-20030
$192.32 MSRP: $275.76
You Save: $83.44 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: (J)
- Replaced by: 23209-20040
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2004-2007 Toyota Sienna | CE, LE, XLE | 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 3MZFE; GSL20L-PFADKK, GSL20L-PFAEKA, GSL20L-PFAEKK, GSL20L-PFAQKA, GSL20L-PFAQKK, GSL20L-PRADKK, GSL20L-PRAEKA, GSL20L-PRAEKK, GSL20L-PRAQKA, GSL20L-PRAQKK, GSL23L-SBADKA, GSL23L-SBADKK, GSL25L-PFADKK, GSL25L-PFAEKA, GSL25L-PFAEKK, GSL25L-PFAQKA, GSL25L-PFAQKK, MCL20L-PFADKK, MCL20L-PFAEKA, MCL20L-PFAEKK, MCL20L-PFAQKA, MCL20L-PFAQKK, MCL20L-PRADKK, MCL20L-PRAEKA, MCL20L-PRAEKK, MCL20L-PRAQKA, MCL20L-PRAQKK, MCL23L-SBADKA, MCL23L-SBADKK, MCL25L-PFADKK, MCL25L-PFAEKA, MCL25L-PFAEKK, MCL25L-PFAQKA, MCL25L-PFAQKK
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Toyota Sienna Injector Assy, Fuel
Part Number: 23209-20010
$181.64 MSRP: $260.47
You Save: $78.83 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1998-2001 Toyota Sienna | CE, LE | 6 Cyl 3.0L | 1MZFE; MCL10L-GFSDKA, MCL10L-GFSDKK, MCL10L-GFSGKA, MCL10L-GFSGKK, MCL10L-PFSDKA, MCL10L-PFSDKK, MCL10L-PFSGKA, MCL10L-PFSGKK, MCL10L-SESDKA, MCL10L-SESDKK
View related parts
Toyota Sienna Injector Assy, Fuel
Part Number: 23209-20020
$192.55 MSRP: $276.10
You Save: $83.55 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 23209-0A010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1998-2003 Toyota Sienna | CE, LE | 6 Cyl 3.0L | 1MZFE; MCL10L-GFSDKA, MCL10L-GFSDKK, MCL10L-GFSGKA, MCL10L-GFSGKK, MCL10L-PFSDKA, MCL10L-PFSDKK, MCL10L-PFSGKA, MCL10L-PFSGKK, MCL10L-SESDKA, MCL10L-SESDKK
View related parts
Toyota Sienna INJECTOR Set, Fuel
Part Number: 23209-0P090-02
$301.70 MSRP: $432.62
You Save: $130.92 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector Assy, Fuel; Injector
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2020 Toyota Sienna | LE, SE, STD, XLE | 6 Cyl 3.5L | 2GRFE, 2GRFKS; GSL30L-PFTDKA, GSL30L-PFTEKA, GSL30L-PFTQKA, GSL30L-PFZDHA, GSL30L-PFZEHA, GSL30L-PFZQHA, GSL30L-PRTEKA, GSL30L-PRTQKA, GSL30L-PRTSKA, GSL30L-PRZEHA, GSL30L-PRZQHA, GSL30L-PRZSHA, GSL33L-SBTDKA, GSL33L-SBZDHA, GSL33L-SEZDHA, GSL35L-PFTEKA, GSL35L-PFTQKA, GSL35L-PFZEHA, GSL35L-PFZQHA, GSL35L-PFZSHA
View related parts
Toyota Sienna INJECTOR Set, Fuel
Part Number: 23209-F0010-08
$365.77 MSRP: $538.41
You Save: $172.64 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector
- Replaces: 23209-25010-08
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2021-2024 Toyota Sienna | 4 Cyl 2.5L | A25AFXS; AXLH40L-PNXLHA, AXLH40L-PNXSHA, AXLH40L-PNXXHA, AXLH40L-PPXEHA, AXLH40L-PPXXHA, AXLH45L-PNXLHA, AXLH45L-PNXSHA, AXLH45L-PNXXHA, AXLH45L-PPXEHA
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Toyota Sienna INJECTOR Set, Fuel
Part Number: 23209-29175
$172.91 MSRP: $245.83
You Save: $72.92 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector
- Replaced by: 23209-F9080
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2021-2024 Toyota Sienna | 4 Cyl 2.5L | A25AFXS; AXLH40L-PNXLHA, AXLH40L-PNXSHA, AXLH40L-PNXXHA, AXLH40L-PPXEHA, AXLH40L-PPXXHA, AXLH45L-PNXLHA, AXLH45L-PNXSHA, AXLH45L-PNXXHA, AXLH45L-PPXEHA
View related parts
Toyota Sienna INJECTOR Set, Fuel
Part Number: 23209-F0010-02
$343.00 MSRP: $491.84
You Save: $148.84 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector
- Replaces: 23209-25010-02
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2021-2024 Toyota Sienna | 4 Cyl 2.5L | A25AFXS; AXLH40L-PNXLHA, AXLH40L-PNXSHA, AXLH40L-PNXXHA, AXLH40L-PPXEHA, AXLH40L-PPXXHA, AXLH45L-PNXLHA, AXLH45L-PNXSHA, AXLH45L-PNXXHA, AXLH45L-PPXEHA
View related parts
Toyota Sienna INJECTOR SET, FUEL
Part Number: 23209-F9080
$172.91 MSRP: $245.83
You Save: $72.92 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector
- Replaces: 23209-29175, 23209-29105, 23209-F9000
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2021-2024 Toyota Sienna | 4 Cyl 2.5L | A25AFXS; AXLH40L-PNXLHA, AXLH40L-PNXSHA, AXLH40L-PNXXHA, AXLH40L-PPXEHA, AXLH40L-PPXXHA, AXLH45L-PNXLHA, AXLH45L-PNXSHA, AXLH45L-PNXXHA, AXLH45L-PPXEHA
View related parts
Toyota Sienna INJECTOR Set, Fuel
Part Number: 23209-F0010-01
$340.57 MSRP: $501.32
You Save: $160.75 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector
- Replaces: 23209-25010-01
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2021-2024 Toyota Sienna | 4 Cyl 2.5L | A25AFXS; AXLH40L-PNXLHA, AXLH40L-PNXSHA, AXLH40L-PNXXHA, AXLH40L-PPXEHA, AXLH40L-PPXXHA, AXLH45L-PNXLHA, AXLH45L-PNXSHA, AXLH45L-PNXXHA, AXLH45L-PPXEHA
View related parts
Toyota Sienna INJECTOR Set, Fuel
Part Number: 23209-0P090-03
$358.42 MSRP: $527.59
You Save: $169.17 (33%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector Assy, Fuel; Injector
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2016-2020 Toyota Sienna | LE, SE, STD, XLE | 6 Cyl 3.5L | 2GRFE, 2GRFKS; GSL30L-PFTDKA, GSL30L-PFTEKA, GSL30L-PFTQKA, GSL30L-PFZDHA, GSL30L-PFZEHA, GSL30L-PFZQHA, GSL30L-PRTEKA, GSL30L-PRTQKA, GSL30L-PRTSKA, GSL30L-PRZEHA, GSL30L-PRZQHA, GSL30L-PRZSHA, GSL33L-SBTDKA, GSL33L-SBZDHA, GSL33L-SEZDHA, GSL35L-PFTEKA, GSL35L-PFTQKA, GSL35L-PFZEHA, GSL35L-PFZQHA, GSL35L-PFZSHA
View related parts
Toyota Sienna INJECTOR Set, Fuel
Part Number: 23209-31090
$143.20 MSRP: $203.58
You Save: $60.38 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector Assy, Fuel
- Manufacturer Note: (J)
- Replaced by: 23209-0P010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2011-2017 Toyota Sienna | LE, SE, STD, XLE | 4 Cyl 2.7L, 6 Cyl 3.5L | 1ARFE, 2GRFE, 2GRFKS; ASL30L-PFTEKA, ASL30L-PRTEKA, GSL30L-PFTDKA, GSL30L-PFTEKA, GSL30L-PFTQKA, GSL30L-PFZDHA, GSL30L-PFZEHA, GSL30L-PFZQHA, GSL30L-PRTEKA, GSL30L-PRTQKA, GSL30L-PRTSKA, GSL30L-PRZEHA, GSL30L-PRZQHA, GSL30L-PRZSHA, GSL33L-SBTDKA, GSL33L-SBZDHA, GSL33L-SEZDHA, GSL35L-PFTDKA, GSL35L-PFTEKA, GSL35L-PFTQKA, GSL35L-PFZEHA, GSL35L-PFZQHA
View related parts
Toyota Sienna Injector Assy, Fuel
Part Number: 23209-0A010
$192.55 MSRP: $276.10
You Save: $83.55 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector
- Replaces: 23209-20020
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1998-2003 Toyota Sienna | CE, LE | 6 Cyl 3.0L | 1MZFE; MCL10L-GFSDKA, MCL10L-GFSDKK, MCL10L-GFSGKA, MCL10L-GFSGKK, MCL10L-PFSDKA, MCL10L-PFSDKK, MCL10L-PFSGKA, MCL10L-PFSGKK, MCL10L-SESDKA, MCL10L-SESDKK

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Toyota Sienna Fuel Injector

If you are in demand for superior quality and affordable OEM Toyota Sienna Fuel Injector, then shop with us! We own a wide range of the reduced-priced genuine Toyota Sienna Fuel Injector. You can purchase in confidence as all parts come with a manufacturer's warranty. Any issues with our products? No need to worry as we have a hassle-free return policy to guide you every step of the way.

Toyota Sienna Fuel Injector Parts Questions & Experts Answers

Injector Assy, Fuel
23209-20020
Q: How to remove fuel injectors and Fuel Rail on Toyota Sienna?
A:
To remove the fuel injectors, first relieve the fuel pressure and detach the cable from the negative terminal of the battery, then remove the V-bank cover. For 2006 and earlier models, take off the PCV hose, remove the assembly retaining the Vacuum Switching Valve control solenoids by taking off the two nuts and positioning the assembly aside, and then remove the air intake plenum to access the rear fuel rail. Disconnect the fuel injector electrical connectors and set the injector wire harness aside, then disconnect the fuel inlet hose from the Fuel Pump for 2000 and earlier models or the fuel line for 2001 and later models, ensuring to unlock the quick-connect fittings if applicable. For 2007 and later models, remove the upper intake manifold, pinch the tabs on the fuel inlet tube connector to disconnect it, and set the fuel injector wire harness aside. For all models, remove the fuel rail mounting bolts and then the fuel rail with the fuel injectors attached, carefully pulling up while rocking back and forth to work the injectors out. Remove the fuel injector(s) from the fuel rail by simultaneously twisting and pulling, and set them aside in a clearly labeled storage container. If reusing the same injectors, replace the grommets and O-rings, discarding the old ones if reinstalling the original injectors. For installation, follow the reverse order of removal, ensuring spacers are in place between the intake manifold and the fuel rails, and tighten the fuel rail mounting bolts.