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

Begin servicing the ignition coil by removing the outlet air cleaner pipe first and after that disconnecting the coil connector. First detach the bolt securing the ignition coil before lifting out the ignition coil on plug. The installation process requires the reversal of the removal steps.

OEM Mercury Grand Marquis Ignition Coil

Ignition Coil Resistor

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

2 Ignition Coils found

View related parts
Mercury Grand Marquis Ignition Coil Part Number: 7U2Z-12029-B
$70.39 MSRP: $115.82
You Save: $45.43 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil Oe Quality; Distributor Less Coil; Direct Ignition Coil; Coil Assembly; Coil
- Replaces: 7U2Z-12029-A, DG-484, F1VY-12029-A, F37Z-12029-A, F5LY-12029-A, F5OY-12029-A, F5OY-12029-B, E8TZ-12029-A, YS4Z-12029-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1992-1997 Mercury Grand Marquis | GS, LS | 8 Cyl 4.6 L GAS
View related parts
Mercury Grand Marquis Ignition Coil Part Number: 3W7Z-12029-AA
$48.95 MSRP: $80.55
You Save: $31.60 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil Assembly - Ignition; Direct Ignition Coil; Direct Ignition Coil Oe Quality; Coil On Plug Coil; Ignition Coil Set; Coil
- Replaces: 1L2Z-12029-AA, 8W7Z-12029-A, DG-540
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1998-2011 Mercury Grand Marquis | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS

Mercury Grand Marquis Ignition Coil

OEM Ignition Coil 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 Coil 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.

The primary function of the Ignition Coil found in Mercury Grand Marquis automobiles is to take the battery voltage and step it up to the high voltage that is required to spark the combustible mix in the spark plugs. Such coils have primary and secondary winding of insulated copper wire on an iron core which stores energy in their magnetic field to produce the required spark. In the past years, ignition coils have come in various types, where there was the traditional system that came with mechanical contact breakers, and the contemporary system that has an electronic control mechanism together with power transistors. In new models, most commonly each cylinder has its own ignition coil, thus high tension leads and distributors are not used. They include the coil-on-plug and wasted spark concerning this, wasted spark system sparks two cylinders at the same time while it is believed that one is wasted. Problems with an ignition coil will cause engine ping or stumble, worse fuel efficiency and crippled power, making proper maintenance and checks crucial for the optimal performance of the vehicle.

Mercury Grand Marquis Ignition Coil Parts and Q&A

Ignition Coil
3W7Z-12029-AA
Q: How to service and repair the ignition coil on Mercury Grand Marquis?
A:
Begin servicing the ignition coil by removing the outlet air cleaner pipe first and after that disconnecting the coil connector. First detach the bolt securing the ignition coil before lifting out the ignition coil on plug. The installation process requires the reversal of the removal steps.