What are the crucial safety precautions to follow when servicing the fuel rail on Mercury Mountaineer?

Always use safety measures during the fuel rail supply as there will be flammable mixtures and high pressure. De-pressurize fuel system prior to unscrewing lines. Openings of caps against contamination. Take out the intake manifold, loosen parts and screw on bolts to required torque. install clean oil lubricated new O-ring seals.

How should one service the fuel rail safely to avoid personal injury on Mercury Mountaineer?

When servicing the fuel rail, do not smoke or use open flames in case of flammable mixture. Relax fuel system pressure then de-couple lines. Disassemble the fuel hose and electrical connector, intake manifold. Disconnect the fuel injection supply manifold and get rid of old O-rings. Install new fuel resistant O- rings greased with clean engine oil.

OEM Mercury Mountaineer Fuel Rail

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Mercury Mountaineer Fuel Rail Part Number: 1L2Z-9D280-ED
$207.25 MSRP: $332.00
You Save: $124.75 (38%)
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Product Specifications
- Other Name: Manifold Assembly - Fuel Supply
- Replaces: 1L2Z-9D280-EA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2005 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
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Mercury Mountaineer Fuel Rail Part Number: 7L2Z-9F792-A
Product Specifications
- Other Name: Manifold Assembly - Fuel Supply
- Replaces: 6L2Z-9F792-EC
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2010 Mercury Mountaineer | Luxury, Premier | 8 Cyl 4.6 L GAS
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Mercury Mountaineer Fuel Rail, Passenger Side Part Number: 6L2Z-9D280-B
Product Specifications
- Other Name: Manifold Assembly - Fuel Supply
- Position: Passenger Side
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2010 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L GAS
View related parts
Mercury Mountaineer Fuel Rail Part Number: 6L2Z-9D280-A
Product Specifications
- Other Name: Manifold Assembly - Fuel Supply
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2010 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L GAS
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Mercury Mountaineer Fuel Rail Part Number: 4L2Z-9D280-A
Product Specifications
- Other Name: Manifold Assembly - Fuel
- Replaces: 4L2Z-9D280-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2004-2005 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
View related parts
Mercury Mountaineer Fuel Rail Part Number: 4L2Z-9F792-EA
Product Specifications
- Other Name: Manifold Assembly - Fuel; Manifold Assembly - Fuel Supply
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2004-2005 Mercury Mountaineer | Base, Convenience, Luxury, Premier
View related parts
Mercury Mountaineer Fuel Rail Part Number: 1L2Z-9F792-AG
Product Specifications
- Other Name: Manifold Assembly - Fuel; Manifold Assembly - Fuel Supply
- Replaces: 1L2Z-9F792-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2003 Mercury Mountaineer | Base

Mercury Mountaineer Fuel Rail

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Mercury Mountaineer Fuel Rail Parts and Q&A

Fuel Rail
1L2Z-9D280-ED
Q: What are the crucial safety precautions to follow when servicing the fuel rail on Mercury Mountaineer?
A: Always use safety measures during the fuel rail supply as there will be flammable mixtures and high pressure. De-pressurize fuel system prior to unscrewing lines. Openings of caps against contamination. Take out the Intake Manifold, loosen parts and screw on bolts to required torque. install clean oil lubricated new O-ring seals.
Fuel Rail
1L2Z-9F792-AG
Q: How should one service the fuel rail safely to avoid personal injury on Mercury Mountaineer?
A: When servicing the fuel rail, do not smoke or use open flames in case of flammable mixture. Relax fuel system pressure then de-couple lines. Disassemble the fuel hose and electrical connector, Intake Manifold. Disconnect the fuel injection supply manifold and get rid of old O-rings. Install new fuel resistant O- rings greased with clean engine oil.