Mercury Cougar Ignition Cable (Spark plug wires) Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(79)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(79)

Ignition Cable (Spark plug wires) Replacement Service

How much does a Ignition Cable (Spark plug wires) Replacement cost?

On average, the cost for a Mercury Cougar Ignition Cable (Spark plug wires) Replacement is $125 with $30 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1984 Mercury CougarV8-5.0LService typeIgnition Cable (Spark plug wires) ReplacementEstimate$230.05Shop/Dealer Price$268.82 - $362.61
1984 Mercury CougarL4-2.3L TurboService typeIgnition Cable (Spark plug wires) ReplacementEstimate$154.69Shop/Dealer Price$179.63 - $231.92
1985 Mercury CougarV6-3.8LService typeIgnition Cable (Spark plug wires) ReplacementEstimate$208.89Shop/Dealer Price$247.38 - $340.32
1985 Mercury CougarV8-5.0LService typeIgnition Cable (Spark plug wires) ReplacementEstimate$210.05Shop/Dealer Price$248.81 - $342.60
1992 Mercury CougarV6-3.8LService typeIgnition Cable (Spark plug wires) ReplacementEstimate$218.87Shop/Dealer Price$259.87 - $360.31
1980 Mercury CougarL6-3.3LService typeIgnition Cable (Spark plug wires) ReplacementEstimate$286.99Shop/Dealer Price$345.01 - $496.52
1982 Mercury CougarV6-3.8LService typeIgnition Cable (Spark plug wires) ReplacementEstimate$265.03Shop/Dealer Price$316.17 - $447.36
1979 Mercury CougarV8-5.0LService typeIgnition Cable (Spark plug wires) ReplacementEstimate$200.63Shop/Dealer Price$236.04 - $319.22
Show example Mercury Cougar Ignition Cable (Spark plug wires) Replacement prices

What is the Ignition Cable (Spark plug wires) all about?

The ignition cables, also known as “spark plug wires” are part of the ignition system. They transfer the spark from the distributor or ignition coil to spark plugs that ignite the air-fuel mixture, starting the engine.

Over time, the cables can get weak and break down. This will make it harder for the spark to reach the engine cylinders, resulting in engine misfires. The car may not start at all. If one of the spark plugs has gone bad, the car will still start and run, but it will run poorly.

Keep in mind:

  • Ignition cable failure is often caused by other failing pieces in the ignition system; a mechanic should check for any other malfunctioning parts, and replace any parts of the system that don’t work.
  • Every time the ignition cables are replaced, the spark plugs should be inspected.
  • Leaking oil or coolant can cause ignition wire failure. If this is the case, the cause of the leak should be repaired or replaced, or else the new ignition wires will quickly be damaged as well.

How it's done:

  • Scan the computer system in the car for codes.
  • Inspect ignition cables (look for white spots).
  • Ohm test on individual cables.
  • Remove and replace the cables if found faulty.
  • Inspect the spark plugs.
  • Clear the codes.

Our recommendation:

Ignition wires should be replaced at least every 60,000 miles, but whenever your car is serviced, it’s a good idea to have the entire ignition system inspected. Any time that you have spark plugs replaced, it’s a good idea to have the ignition wires replaced as well. If you notice that your engine is running poorly, you should schedule an inspection.

What common symptoms indicate you may need to replace the Ignition Cable (Spark plug wires)?

  • Check Engine light is on.
  • Engine misfires.
  • Poor gas mileage.
  • Engine may shake (light vibration).

How important is this service?

The fuel in your automobile is ignited by a spark. This starts with the ignition coil, which transforms low voltage power into extremely high voltage. This high voltage is transferred through the ignition cables, and to the spark plug, where a spark is created that ignites the engine’s fuel, and powers the engine.

When one or more ignition cables fail, this voltage will not be transferred from the ignition coil to the spark plugs, and the fuel will not be ignited. Depending on how many of your ignition cables malfunction, your car will either run poorly, or won’t run at all.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercury mechanics

Real customer reviews from Mercury owners like you.

Excellent Rating

(79)

Rating Summary
70
6
2
0
1
70
6
2
0
1

Vytas

8 years of experience
62 reviews
Vytas
8 years of experience
Mercury Cougar V8-4.6L - Car is not starting - Elmwood Park, Illinois
Excellent service and prompt very experienced and knowledgable. will always use instead of dealers or garages.

AL

12 years of experience
234 reviews
AL
12 years of experience
Mercury Cougar V8-5.8L - Distributor - Vancouver, Washington
Al was able to replace the part, which was the easy part for him, but failed to get to keep the car running and idling at the proper idle setting. Therefore the car still does not run correct where I am able to drive it or move it.

Christopher

27 years of experience
347 reviews
Christopher
27 years of experience
Mercury Cougar V6-2.5L - Battery Cable Replacement (Negative) - Riverview, Florida
Very professional, honest and a good guy. You can trust him in all your car repairs. Thanks, Chris!!!

Bryan

22 years of experience
45 reviews
Bryan
22 years of experience
Mercury Cougar V6-3.8L - Stabilizer Bar Links Replacement (Front, Rear) - Mulberry, Florida
Bryan corrected the problem quickly and in a very professional manner. I will always request when my car needs attention in the future.

Excellent Rating

(79)

Rating Summary
70
6
2
0
1
70
6
2
0
1
Number of Mercury Cougar services completed
869+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercury MECHANICS
600+
experts on our platform

Recent articles & questions

A Buyer's Guide to the 2012 Kia Sedona
The The Kia Sedona has been increasing in popularity over the years and the 2012 model kept the streak alive. This minivan can be yours at a very reasonable price, yet you don’t have to worry that this will mean...
How to Clean Windows on a Car
Keeping Keeping your vehicle’s windows and windshield clean can certainly be a tough task to maintain. Even if you do clean your car’s glass, you might end up with noticeable streaking and residue. Luckily, when cleaned correctly, streaking and other...
P0263 OBD-II Trouble Code: Cylinder Number 1 Contribution/Balance Fault
P0263 P0263 code definition Cylinder Number 1 Contribution/Balance Fault What the P0263 code means P0263 is an [OBD-II diagnostic trouble code] which indicates that the engine control module (ECM) (https://www.yourmechanic.com/article/what-is-a-vehicle-s-electrical-control-unit) detected the cylinder number 1 having low contribution to the...

Engine sounds like it is only running on 3 cylinders.

The coils or spark plugs are misfiring on your car and this is pretty common for this engine. Have a technician inspect why your engine is misfiring (https://www.yourmechanic.com/services/engine-is-misfiring-inspection). He will have to scan for codes on the misfiring cylinder and...

Car shakes when I slow down.

Hello. The imbalance of rotating parts on a car, such as your wheel and tire assemblies, is a function of speed but also "positioning". When you were traveling at a steady state rate, say 65 MPH, the suspension was clearly...

Mixing red coolant with green coolant

Hi Justin. Thanks for contacting us today. It's not recommended to mix red and green coolant, as the two different coolant mixtures have different maximum heat 'boiling points'. As coolant heats up, it expands. If it's not properly mixed with...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com