GMC Sierra 1500 HD 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 GMC Sierra 1500 HD Ignition Cable (Spark plug wires) Replacement is $289 with $93 for parts and $196 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2001 GMC Sierra 1500 HDV8-6.0L	Service typeIgnition Cable (Spark plug wires) Replacement	Estimate$402.44	Shop/Dealer Price$453.84 - $596.70
2005 GMC Sierra 1500 HDV8-6.0L	Service typeIgnition Cable (Spark plug wires) Replacement	Estimate$389.83	Shop/Dealer Price$438.75 - $579.76
2003 GMC Sierra 1500 HDV8-6.0L	Service typeIgnition Cable (Spark plug wires) Replacement	Estimate$389.83	Shop/Dealer Price$438.79 - $579.82
2002 GMC Sierra 1500 HDV8-6.0L	Service typeIgnition Cable (Spark plug wires) Replacement	Estimate$389.83	Shop/Dealer Price$438.79 - $579.82
2006 GMC Sierra 1500 HDV8-6.0L	Service typeIgnition Cable (Spark plug wires) Replacement	Estimate$389.83	Shop/Dealer Price$440.85 - $583.43

Show example GMC Sierra 1500 HD 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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Bryant

13 years of experience

638 reviews

Bryant

13 years of experience

by Keith

GMC Sierra 1500 HD V8-6.0L - Car AC Repair - Indianapolis, Indiana

Great Mechanic Knows his stuff Worth the cost

Scott

37 years of experience

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Scott

37 years of experience

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GMC Sierra 1500 HD V8-6.0L - Fan Clutch - Gilbert, Arizona

On time , fast clean work and great service.

Bryant

13 years of experience

638 reviews

Bryant

13 years of experience

by Keith

GMC Sierra 1500 HD V8-6.0L - Car Starter Repair - Indianapolis, Indiana

Great job on my truck

Lavell

29 years of experience

405 reviews

Lavell

29 years of experience

by Matt

GMC Sierra 1500 HD V8-6.0L - Check Engine Light is on Inspection - Orinda, California

Lavell was great, very knowledgeable and contextualized his findings so I could understand not just what he found, but also the corresponding implications.

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