How to Service and Repair a Fuel Injector on a 3.8L Engine on Chrysler Pacifica?

Service and repair workers must first release the fuel system pressure before working on the fuel injector of a 3.8L engine. Separate the negative battery cable from the battery. Take the clean air hose out of the throttle body. Disconnect the quick connect fuel line from the fuel rail by using a special fuel line release tool. Get rid of the upper intake manifold. Once you've marked the fuel injector electrical hangers with the right cylinder numbers, disconnect the electrical connectors. Untighten the mounting bolts on the fuel rail and pull the rail straight off the lower intake manifold. Always install each injector you change into its original location by placing a mark or tag on it to identify its position. Take away the retaining clips from the fuel injectors at the fuel rail and then take out the fuel injectors from the rail.

How to Maintain and Fix a Fuel Injector on Chrysler Pacifica?

To work on the fuel injector, first remove the battery cable from the negative terminal and discharge the fuel pressure. Extract the upper intake manifold and label each injector connector if their cylinder numbers have not been put on them. After unplugging the fuel supply line, detach the fuel rail from the cylinder head by removing all 4 bolts and taking it away straight up. Carefully remove the retaining clips on the fuel injectors on the fuel rail and get rid of the fuel injectors. Add some clean engine oil to the O-rings on the fuel injectors before bringing them together with the retaining clips. Pull back on the injectors until the clips fit firmly into the fuel injector rail. Lift the fuel rail over the cylinder heads and fit it in place, connecting it with the bolts to a torque setting of 28 N.m or 250 in. lbs. First, join the fuel supply tube to the fuel rail and after that link the fuel injectors' electrical connectors. After that, put in the intake manifold plenum and reattach the negative battery cable.

OEM Chrysler Pacifica Fuel Injector

Gas Injector

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Chrysler Pacifica Injector Part Number: 5281427AA
$32.95 MSRP: $48.45
You Save: $15.50 (32%)
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Product Specifications
- Other Name: Injector - Fuel; Fuel Injector; Injector Fuel
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2017-2024 Chrysler Pacifica | AWD Launch Edition, Hybrid Limited, Hybrid Pinnacle, Hybrid Platinum, Hybrid Premium, Hybrid Premium S Appearance, Hybrid Road Tripper, Hybrid S Appearance, Hybrid Select, Hybrid Touring, Hybrid Touring L, Hybrid Touring Plus, L, LX, Limited, Pinnacle, Touring, Touring L, Touring L Plus, Touring Plus | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS, 6 Cyl 3.6 L PLUG-IN HYBRID EV-GAS (PHEV)
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Chrysler Pacifica Injector Part Number: 4591986AA
$115.45 MSRP: $151.00
You Save: $35.55 (24%)
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Product Specifications
- Other Name: Injector - Fuel; Gasoline Injector; Fuel Injector; Injector Fuel
- Replaces: RL591986AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2005-2008 Chrysler Pacifica | Base, LX, Limited, Touring | 6 Cyl 3.5 L GAS, 6 Cyl 4.0 L GAS
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Chrysler Pacifica Injector Part Number: 4861667AA
$139.25 MSRP: $207.00
You Save: $67.75 (33%)
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Product Specifications
- Other Name: Injector - Fuel; Gasoline Injector; Fuel Injector; Injector Fuel
- Replaces: RL861667AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2008 Chrysler Pacifica | LX | 6 Cyl 3.8 L GAS
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Chrysler Pacifica Injector Part Number: RL861238AC
$55.19 MSRP: $114.00
You Save: $58.81 (52%)
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Product Specifications
- Other Name: Injector - Fuel; Fuel Injector
- Replaced by: 4861238AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2007, 2005 Chrysler Pacifica | Base | 6 Cyl 3.8 L GAS
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Chrysler Pacifica Injector Part Number: RL861615AA
Product Specifications
- Other Name: Injector - Fuel; Fuel Injector
- Replaces: 4861615AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2004 Chrysler Pacifica | Base | 3.5L V6, 6 Cyl 3.5 L GAS

Chrysler Pacifica Fuel Injector

Choose OEM Fuel Injector that meet Chrysler factory standards. Chrysler designs and tests every component for precision and durability. Each Fuel Injector follows strict manufacturing steps to lock in quality and fit. If your Chrysler Pacifica matters to you, OEM parts make the smart choice. You'll get the exact look, feel, and performance you expect. Shop genuine Pacifica parts at the highly competitive prices online. Enjoy a manufacturer's warranty, a hassle-free return policy, and rapid delivery. No more guesswork with off brands. Get genuine parts with exact fit and true factory performance. Shop with confidence today at JeepPartsDeal.com.

One of the most important and fundamental units that help to improve the performance of Chrysler Pacifica vehicle is called Chrysler Pacifica Fuel Injector. This is a Fuel Injector that is meant to spray fuel directly to the cylinders of the engine; to afford accuracy in the mixing of air and fuel, which are crucial for the combustion process. Under the regulation of ECM, Fuel Injector can alter the flow of fuel according to the load of the engine, for different driving modes. The Chrysler Pacifica models including the gasoline variant and the plug-in hybrid variants incorporate a returnless fuel injection system which makes the fuel pipeline system less complicated. This design does not only improves reliability; it also reduces the chances of clogs or leaking that hamper the performance of the engine. General servicing and replacement of the Fuel Injector should not be left for a long time for Chrysler Pacifica to remain a safe car to drive. The Fuel Injector plays a part of efficiency in the supply of fuel and firmly establishes the vehicle as extraordinary in the automotive industry. Thus, this Fuel Injector has the ability to adapt to the different models of Chrysler Pacifica; thus, it is crucial in keeping the car up and running. The Chrysler Pacifica has been the recipient of many awards, and is thus one of the preferred cars for families; the Fuel Injector remains an important Peace Diamond in making sure that the Pacifica remain s a top performing and safe car on the road.

Chrysler Pacifica Fuel Injector Parts and Q&A

Injector
4861667AA
Q: How to Service and Repair a Fuel Injector on a 3.8L Engine on Chrysler Pacifica?
A:
Service and repair workers must first release the fuel system pressure before working on the fuel injector of a 3.8L engine. Separate the negative Battery Cable from the battery. Take the clean air hose out of the Throttle Body. Disconnect the quick connect fuel line from the Fuel Rail by using a special fuel line release tool. Get rid of the upper Intake Manifold. Once you've marked the fuel injector electrical hangers with the right cylinder numbers, disconnect the electrical connectors. Untighten the mounting bolts on the fuel rail and pull the rail straight off the lower intake manifold. Always install each injector you change into its original location by placing a mark or tag on it to identify its position. Take away the retaining clips from the fuel injectors at the fuel rail and then take out the fuel injectors from the rail.
Injector
4591986AA
Q: How to Maintain and Fix a Fuel Injector on Chrysler Pacifica?
A:
To work on the fuel injector, first remove the Battery Cable from the negative terminal and discharge the fuel pressure. Extract the upper Intake Manifold and label each injector connector if their cylinder numbers have not been put on them. After unplugging the fuel supply line, detach the Fuel Rail from the cylinder head by removing all 4 bolts and taking it away straight up. Carefully remove the retaining clips on the fuel injectors on the fuel rail and get rid of the fuel injectors. Add some clean engine oil to the O-rings on the fuel injectors before bringing them together with the retaining clips. Pull back on the injectors until the clips fit firmly into the fuel injector rail. Lift the fuel rail over the cylinder heads and fit it in place, connecting it with the bolts to a torque setting of 28 N.m or 250 in. lbs. First, join the fuel supply tube to the fuel rail and after that link the fuel injectors' electrical connectors. After that, put in the intake manifold plenum and reattach the negative battery cable.