What precautions should be taken when servicing fuel injectors to ensure safety and proper installation on Mercury Mountaineer?

Services on fuel injectors should be conducted in areas without smoking or carrying lighted tobacco and open flames due to the combustible fuel mixtures that could produce severe injuries. Disconnection of fuel tubes or components needs an advance decompression of the fuel system to stop accidental fuel spraying because the system preserves high pressure during engine shutdown. Protect fuel-related components from contamination by using caps and tape or suitable alternatives to cover all liquid and vapor fuel access points during repair work but remove these materials before installing. The first step requires you to take out the fuel rail which must be followed by removal of the fuel injectors alongside their O-ring seals. O-ring seals which stand made from fuel-resistant material maintain their purpose but standard O-ring seals will degrade when exposed to fuel producing leaks. O-ring seals should not be used again because their removal and installation process puts them at risk of damage. New fuel injector-to-fuel rail O-ring seals need installation with clean engine oil lubrication before using the reverse procedure to place them correctly.

OEM Mercury Mountaineer Fuel Injector

Gas Injector

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9 Fuel Injectors found

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Mercury Mountaineer Injector
Part Number: F77Z-9F593-BA
$78.88 MSRP: $109.12
You Save: $30.24 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injector Assembly; Fuel Injector
- Manufacturer Note: Injector asy. (fuel) #97JF 9F593-BA
- Replaces: F77Z-9F593-GA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2000 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS
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Mercury Mountaineer Injector
Part Number: 5L2Z-9F593-CB
$58.01 MSRP: $95.45
You Save: $37.44 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injector Assembly; Gasoline Injector; Fuel Injector
- Manufacturer Note: Injector O-Rings Are Not Serviced Separately. Available Only With Injector Asy.
- Replaces: 5L2Z-9F593-CA
- 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, 8 Cyl 4.6 L GAS
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Mercury Mountaineer Injector
Part Number: 1L2Z-9F593-CA
$65.09 MSRP: $109.27
You Save: $44.18 (41%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injector Assembly; Fuel Injector
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2003 Mercury Mountaineer | Base | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
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Mercury Mountaineer Injector
Part Number: 4L8Z-9F593-B
$63.25 MSRP: $106.18
You Save: $42.93 (41%)
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Product Specifications
- Other Name: Kit - Fuel Injection; Fuel Injector
- Replaces: 2C5Z-9F593-AA, 4L8Z-9F593-AA
- 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 Injector
Part Number: 4L3Z-9F593-AB
$81.11 MSRP: $133.45
You Save: $52.34 (40%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Kit - Fuel Injection; Fuel Injector
- Replaces: 4L3Z-9F593-BA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2004-2005 Mercury Mountaineer | Base, Convenience, Luxury, Premier
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Mercury Mountaineer Injector
Part Number: 4L2Z-9F593-EB
$58.34 MSRP: $96.00
You Save: $37.66 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Injector Assembly; Fuel Injector
- Replaces: 4L2Z-9F593-EA
- 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
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Mercury Mountaineer Injector
Part Number: F6VZ-9F593-AA
Product Specifications
- Other Name: Injector Assembly; Fuel Injector
- Replaces: F4SZ-9F593-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997-2001 Mercury Mountaineer | Base | 8 Cyl 5.0 L GAS
View related parts
Mercury Mountaineer Injector
Part Number: 1L2Z-9F593-BA
Product Specifications
- Other Name: Injector Assembly; Fuel Injector
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS
View related parts
Mercury Mountaineer Injector
Part Number: 6F1Z-9F593-B
Product Specifications
- Other Name: Kit - Fuel Injection; Fuel Injector
- Replaces: 1L2Z-9F593-DA, 1L2Z-9F593-EA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2003 Mercury Mountaineer | Base

Mercury Mountaineer Fuel Injector

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Mercury Mountaineer Fuel Injector Parts Questions & Experts Answers

Injector
5L2Z-9F593-CB
Q: What precautions should be taken when servicing fuel injectors to ensure safety and proper installation on Mercury Mountaineer?
A: Services on fuel injectors should be conducted in areas without smoking or carrying lighted tobacco and open flames due to the combustible fuel mixtures that could produce severe injuries. Disconnection of fuel tubes or components needs an advance decompression of the fuel system to stop accidental fuel spraying because the system preserves high pressure during engine shutdown. Protect fuel-related components from contamination by using caps and tape or suitable alternatives to cover all liquid and vapor fuel access points during repair work but remove these materials before installing. The first step requires you to take out the Fuel Rail which must be followed by removal of the fuel injectors alongside their O-ring seals. O-ring seals which stand made from fuel-resistant material maintain their purpose but standard O-ring seals will degrade when exposed to fuel producing leaks. O-ring seals should not be used again because their removal and installation process puts them at risk of damage. New fuel injector-to-fuel rail O-ring seals need installation with clean engine oil lubrication before using the reverse procedure to place them correctly.