Spark Plug Replacement in Dallas, TX

Common Worn Spark Plug Symptoms

• Difficulty starting your vehicle
• Rough idling due to engine misfiring
• Loss of power
• Poor fuel economy
• Illuminated Check Engine Light
• Increased emissions

Common Spark Plug-Related Repairs

1. Spark Plug Replacement

A spark plug replacement can cost anywhere between $100 and $500 depending on your vehicle.

• Spark plug cost: While conventional copper spark plugs cost $2-$10/piece, premium iridium spark plugs can cost up to $100/piece.
• Labor cost: you can expect to pay between $40 and $350 as labor charges, depending on your car’s engine type.

2. Ignition Coil Replacement

An ignition coil replacement can cost as high as $450, with parts costing around $150 – $300, and labor costing about $100 – $150.

Dallas Spark Plug Replacement FAQ

1. How Do I Schedule an Appointment?

Once you select the service you need, AutoNation Mobile Service will help you find a date and time that suits your schedule. 

2. What Should I Expect From a Service Appointment?

On the day of your appointment, our mechanic will contact you when they arrive at your location. Depending on the work area, our mechanic may move your vehicle to a more appropriate location on site, and they’ll get to work. Once service is complete, our mechanic will contact you, go over a comprehensive report on your vehicle, and answer any questions. They’ll process payment for the service and will be on their way. 

3. How Frequently Should I Change My Car’s Spark Plugs? 

Your spark plug’s lifespan can range between 20,000 and 100,000 miles (for a long-life spark plug).

It varies depending on the:

• Spark plug metal type
• Spark plug manufacturer
• Spark plug design
• Car’s make and model

Consult your car owner’s manual to clarify when to change spark plugs.

However, if you’re looking for a general rule, most manufacturers recommend changing spark plugs every 30,000 miles.

4. What Happens If I Don’t Change My Spark Plugs?

A few bad things can happen if you don’t change your spark plugs at the recommended intervals. 

Firstly, corroded spark plugs won’t produce the required spark, so your engine must use more fuel and work harder to produce the required force. This also means you’ll end up spending more money on gas. 

Secondly, if you keep using worn spark plugs, the build-up on spark plugs can lead to an engine misfire which can put unnecessary stress on the cylinder walls. This can even cause dangerous pressure levels to build up and lead to engine failure.

5. Should All Spark Plugs Be Replaced At Once?

Most mechanics recommend changing your spark plugs as a set. 

Here’s why:

• Your spark plugs need to be on similar performance levels for optimal combustion. 
• If one of your plugs was performing well while others were old and rusty, it would put the engine out of sync. 
• Changing single plugs messes with their rotation interval. You’d have to inspect your spark plugs twice as much if each of them were on separate replacement intervals. 
• Your spark plugs should have the same electrical resistance throughout. If one performs slightly better, the engine loses its balance. It puts more pressure on your otherwise consistent combustion system and leads to excess wear and tear. 

Replacing all worn spark plugs is a standard maintenance practice, and it’s best to stick to it. You’ll be saving more time and effort in the long run!