How to remove fuel injectors and Fuel Rail on V8 engine on Chevrolet Avalanche?

First, remove the intake manifold cover to get it off the fuel injectors on a vehicle. It is also necessary to relieve the fuel system pressure and disconnect the negative battery terminal cable. After that, air intake and manifold cover bracket bolts are removed as well as the nut holding engine wiring harness bracket to intake manifold. Electrical leads in engine wiring harness traced and disconnected from various components including alternator, EVAP purge solenoid, ignition coils, MAP sensor and throttle body. Also, electrical connectors from fuel injectors were disconnected; engine wiring harness clips were detached too. The PCV hose is disconnected from the intake manifold while the fuel line is disconnected from the fuel rail. The EVAP canister purge solenoid is removed from the intake manifold while the fuel rail mounting bolts are removed. Thereafter, injectors are disengaged from engine as an assembly through lifting them out of top of intake manifold by each individual injector retainer with its old o-ring removed.New o-rings should be installed after which they are lubricated with clean engine oil before reassembling both injectors and fuel rail. This process however must be done in reverse starting by tightening up of fuel rail mounting bolts and then pressurizing of fuel system so as to ensure there are no leaks occurring during installation.

Genuine Chevrolet Avalanche Fuel Rail

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10 Fuel Rails found

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Chevrolet Avalanche Rail Asm,Multiport Fuel Injection Fuel (Right Hand)
Part Number: 17113695
$104.50 MSRP: $327.45
You Save: $222.95 (69%)
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Product Specifications
- Other Name: RAIL, Fuel Injection; Fuel Rail
- Position: Passenger Side
- Replaces: 89017376
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2006 Chevrolet Avalanche | 1/2 TON | 8 Cyl 5.3L
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Chevrolet Avalanche Multiport Fuel Injection Fuel Rail Assembly
Part Number: 12602113
$114.18 MSRP: $232.93
You Save: $118.75 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: RAIL, Fuel Injection; Fuel Rail
- Replaces: 89017375
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2006 Chevrolet Avalanche | 1/2 TON | 8 Cyl 5.3L
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Chevrolet Avalanche Rail Assembly, Sequential Multiport Fuel Injection Fuel
Part Number: 12660710
$183.72 MSRP: $374.78
You Save: $191.06 (51%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: RAIL, Fuel Injection; Fuel Rail
- Replaces: 12621665, 12621563
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2009 Chevrolet Avalanche | 1/2 TON | 8 Cyl 6.0L
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Chevrolet Avalanche Rail Assembly, Sequential Multiport Fuel Injection Fuel
Part Number: 12621662
$180.88 MSRP: $341.28
You Save: $160.40 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: RAIL, Fuel Injection; Fuel Rail
- Replaces: 89018110, 89017110, 12621560
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2009 Chevrolet Avalanche | 1/2 TON | 8 Cyl 5.3L Flex
View related parts
Chevrolet Avalanche Rail Assembly, Sequential Multiport Fuel Injection Fuel
Part Number: 12660709
$190.67 MSRP: $359.76
You Save: $169.09 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: RAIL, Fuel Injection; Fuel Rail
- Replaces: 12621668, 12621566
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2013 Chevrolet Avalanche | 1/2 TON | 8 Cyl 5.3L, 8 Cyl 5.3L Flex
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Chevrolet Avalanche Pipe Kit,Fuel Injection Fuel Return
Part Number: 89017381
Product Specifications
- Other Name: PIPE KIT, Fuel Line
- Replaces: 88894359
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2003 Chevrolet Avalanche | 1/2 TON | 8 Cyl 5.3L
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Chevrolet Avalanche Rail Asm,Multiport Fuel Injection Fuel (Left Hand)
Part Number: 17113696
Product Specifications
- Other Name: RAIL, Fuel Injection; Fuel Rail
- Position: Driver Side
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2003 Chevrolet Avalanche | 1/2 TON | 8 Cyl 5.3L
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Chevrolet Avalanche Rail Kit,Multiport Fuel Injection Fuel
Part Number: 12575055
Product Specifications
- Other Name: RAIL KIT, Fuel Injection; Fuel Rail
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002-2003 Chevrolet Avalanche | 3/4 TON | 8 Cyl 8.1L
View related parts
Chevrolet Avalanche Rail Assembly, Sequential Multiport Fuel Injection Fuel
Part Number: 12599737
Product Specifications
- Other Name: RAIL, Fuel Injection; Fuel Rail
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2006 Chevrolet Avalanche | 1/2 TON | 8 Cyl 5.3L Flex
View related parts
Chevrolet Avalanche Rail Kit,Multiport Fuel Injection Fuel
Part Number: 12574941
Product Specifications
- Other Name: RAIL KIT, Fuel Injection; Fuel Rail
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2006 Chevrolet Avalanche | 3/4 TON | 8 Cyl 8.1L

Chevrolet Avalanche Fuel Rail

Chevrolet Avalanche Fuel Rail transports gasoline at pressure to each injector so the engine gets the right spray for smooth power and clean emissions. The earlier Chevrolet trucks with throttle body injection had a fairly small Fuel Rail inside the TBI unit that fed one or two centrally mounted injectors above the throttle plates and mixed the fuel in a manner similar to a very modern-day carburetor. Multiport injection took place in the later generations of Avalanche, where an external Fuel Rail bolts along the runners of the intake manifold which feeds individual port injectors near each valve for better atomization and quicker response. The recent evolution, often referred to as common rail direct or gasoline direct injection (GDi) engines, raises pressure significantly, using a high-strength Fuel Rail exceeding 2,000 bar to inject fine droplets directly into the combustion chamber, improving torque, efficiency, and emissions. Throughout these stages, the key differences are found in pressure, injector location, and the adjustments made by the powertrain control module to pulse width. Every model year of the Chevrolet Avalanche utilizes a regulated Fuel Rail. The Fuel Rail is a pipe made of metal or composite, which is capped by a pressure regulator and sensor to ensure it supplies fuel under all conditions.

Each OEM Chevrolet Avalanche Fuel Rail we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Avalanche Fuel Rail Parts Questions & Experts Answers

Rail Assembly, Sequential Multiport Fuel Injection Fuel
12660709
Q: How to remove fuel injectors and Fuel Rail on V8 engine on Chevrolet Avalanche?
A:
First, remove the intake manifold cover to get it off the fuel injectors on a vehicle. It is also necessary to relieve the fuel system pressure and disconnect the negative battery terminal cable. After that, air intake and manifold cover bracket bolts are removed as well as the nut holding engine wiring harness bracket to intake manifold. Electrical leads in engine wiring harness traced and disconnected from various components including alternator, EVAP purge solenoid, ignition coils, MAP sensor and Throttle Body. Also, electrical connectors from fuel injectors were disconnected; engine wiring harness clips were detached too. The PCV hose is disconnected from the intake manifold while the fuel line is disconnected from the fuel rail. The EVAP canister purge solenoid is removed from the intake manifold while the fuel rail mounting bolts are removed. Thereafter, injectors are disengaged from engine as an assembly through lifting them out of top of intake manifold by each individual injector retainer with its old o-ring removed.New o-rings should be installed after which they are lubricated with clean engine oil before reassembling both injectors and fuel rail. This process however must be done in reverse starting by tightening up of fuel rail mounting bolts and then pressurizing of fuel system so as to ensure there are no leaks occurring during installation.