How to service and repair the ignition switch on Mercury Grand Marquis?

Service and repair operations on the ignition switch need to start by depowering the supplemental restraint system (SRS). Start by placing the ignition switch lock cylinder at RUN and use a suitable tool to push upward on the release tab which allows you to pull the cylinder outward. First unlatch and remove the tilt lever from the steering wheel before pushing the upper steering column shroud sides to release it. The upper and lower steering column shrouds need their three screws removed but reinstallation must follow with screw tightening to 2 Nm (18 inch lbs.). Disconnect the ignition switch electrical connector before removing its screw to extract the switch while torquing it to 5 Nm (44 inch lbs.) during installation. The SRS repowering process should start with a reversal of the removal sequence.

OEM Mercury Grand Marquis Ignition Switch

Starter Ignition Switch

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3 Ignition Switches found

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Mercury Grand Marquis Ignition Switch Part Number: F4DZ-11572-B
$46.77 MSRP: $75.45
You Save: $28.68 (39%)
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Product Specifications
- Other Name: Switch Assembly - Ignition
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1990-2004 Mercury Grand Marquis | GS, LS, LSE | 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
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Mercury Grand Marquis Ignition Switch Part Number: F29Z-11572-D
$27.48 MSRP: $43.64
You Save: $16.16 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Switch Assembly - Ignition; Ignition Starter Switch
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1984-1989 Mercury Grand Marquis | Base, Colony Park, GS, LS | 8 Cyl 5.0 L GAS, 8 Cyl 5.8 L GAS
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Mercury Grand Marquis Ignition Switch Part Number: 5W1Z-11572-AA
$42.02 MSRP: $66.73
You Save: $24.71 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Switch Assembly - Ignition
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2011 Mercury Grand Marquis | GS, GSL, Limited Edition, LS, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS

Mercury Grand Marquis Ignition Switch

OEM Ignition Switch boasts unmatched quality. Each part goes through full quality checks. They adhere to Mercury's official factory standards. These steps remove flaws and inconsistencies. So you can get Ignition Switch with long life and a perfect fit. Come to our website and find genuine Mercury Grand Marquis parts. We keep a wide inventory of OEM Grand Marquis parts at the highly affordable prices. It's easy to search, compare, and pick what you need. You'll love the clear info and simple checkout. We offer top-rated customer service, and we reply fast. We also ship promptly to ensure your order arrives on time.

Mercury Grand Marquis Ignition Switch Parts and Q&A

Ignition Switch
5W1Z-11572-AA
Q: How to service and repair the ignition switch on Mercury Grand Marquis?
A:
Service and repair operations on the ignition switch need to start by depowering the supplemental restraint system (SRS). Start by placing the ignition switch lock cylinder at RUN and use a suitable tool to push upward on the release tab which allows you to pull the cylinder outward. First unlatch and remove the tilt lever from the steering wheel before pushing the upper steering column shroud sides to release it. The upper and lower steering column shrouds need their three screws removed but reinstallation must follow with screw tightening to 2 Nm (18 inch lbs.). Disconnect the ignition switch electrical connector before removing its screw to extract the switch while torquing it to 5 Nm (44 inch lbs.) during installation. The SRS repowering process should start with a reversal of the removal sequence.