Jeep CJ7 Ignition Cable (Spark plug wires) Replacement Costs

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Ignition Cable (Spark plug wires) Replacement Service

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

On average, the cost for a Jeep CJ7 Ignition Cable (Spark plug wires) Replacement is $140 with $45 for parts and $95 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
1976 Jeep CJ7L6-4.2L	Service typeIgnition Cable (Spark plug wires) Replacement	Estimate$272.89	Shop/Dealer Price$322.37 - $448.29
1985 Jeep CJ7L6-4.2L	Service typeIgnition Cable (Spark plug wires) Replacement	Estimate$190.65	Shop/Dealer Price$224.58 - $303.84
1982 Jeep CJ7L4-2.5L	Service typeIgnition Cable (Spark plug wires) Replacement	Estimate$263.87	Shop/Dealer Price$316.11 - $450.28
1984 Jeep CJ7L6-4.2L	Service typeIgnition Cable (Spark plug wires) Replacement	Estimate$252.89	Shop/Dealer Price$302.36 - $428.28
1978 Jeep CJ7L6-4.2L	Service typeIgnition Cable (Spark plug wires) Replacement	Estimate$252.89	Shop/Dealer Price$302.40 - $428.35
1981 Jeep CJ7L4-2.5L	Service typeIgnition Cable (Spark plug wires) Replacement	Estimate$263.87	Shop/Dealer Price$316.11 - $450.28
1986 Jeep CJ7L6-4.2L	Service typeIgnition Cable (Spark plug wires) Replacement	Estimate$195.65	Shop/Dealer Price$229.45 - $308.60
1986 Jeep CJ7L4-2.5L	Service typeIgnition Cable (Spark plug wires) Replacement	Estimate$189.51	Shop/Dealer Price$222.14 - $296.98

Show example Jeep CJ7 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.

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Dave

23 years of experience

303 reviews

Dave

23 years of experience

by Dean

Jeep CJ7 V8-5.0L - Windshield Wiper Motor Replacement (Front) - San Jose, California

Very professional,good guy!

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16 years of experience

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Jay

16 years of experience

by Ron

Jeep CJ7 L6-4.2L - Car is not starting - North Palm Beach, Florida

I found Jay to be very competent, honest and personable and I'm looking forward to his return after the parts needed are acquired.

Jeshua

7 years of experience

131 reviews

Jeshua

7 years of experience

by Ben

Jeep CJ7 V8-5.0L - Car is not starting - Sarasota, Florida

I have never been more pleased with a mechanic in my entire life

Jose

16 years of experience

324 reviews

Jose

16 years of experience

by Spencer

Jeep CJ7 L6-4.2L - Pre-purchase Car Inspection - Fort Lauderdale, Florida

I had an excellent experience using Jose for a pre-purchase car inspection. I was able to talk to him before the inspection and let him know exactly what I was looking for, and he was quick to accommodate. He was courteous throughout, and most importantly, extremely knowledgeable. He provided me with great feedback and insight about the vehicle, offered useful impressions, and even provided me with good information regarding the dealer (I'm an out-of-state buyer). After I received the inspection report by email, Jose was available to talk to me over the phone to go over the results. He was also quick to let me know I could call him back with any further questions. I got the impression that it was sincerely important to him that I was satisfied with his work. All in all, after Jose had thoroughly inspected the vehicle, I had the confidence to buy it and I couldn't be happier! I'd absolutely recommend using Jose for any job!

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