Mazda Millenia Spark Plug Replacement Costs

Estimate price near me

Service Location

Customer Ratings

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.

See availability

Customer Ratings

Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a Mazda Millenia Spark Plug Replacement is $278 with $138 for parts and $140 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2001 Mazda MilleniaV6-2.5L	Service typeSpark Plug Replacement	Estimate$497.72	Shop/Dealer Price$587.00 - $846.74
1995 Mazda MilleniaV6-2.3L Turbo	Service typeSpark Plug Replacement	Estimate$568.22	Shop/Dealer Price$640.95 - $850.88
1996 Mazda MilleniaV6-2.3L Turbo	Service typeSpark Plug Replacement	Estimate$568.22	Shop/Dealer Price$641.00 - $850.97
2000 Mazda MilleniaV6-2.5L	Service typeSpark Plug Replacement	Estimate$488.71	Shop/Dealer Price$576.25 - $834.68
1999 Mazda MilleniaV6-2.5L	Service typeSpark Plug Replacement	Estimate$488.71	Shop/Dealer Price$577.72 - $837.26
2002 Mazda MilleniaV6-2.5L	Service typeSpark Plug Replacement	Estimate$488.71	Shop/Dealer Price$576.39 - $834.93
1999 Mazda MilleniaV6-2.3L Turbo	Service typeSpark Plug Replacement	Estimate$568.22	Shop/Dealer Price$641.03 - $851.02
1996 Mazda MilleniaV6-2.5L	Service typeSpark Plug Replacement	Estimate$488.71	Shop/Dealer Price$576.25 - $834.68

Show example Mazda Millenia Spark Plug Replacement prices

What are spark plugs and how do they work?

Spark plugs are one of the key components of your vehicle’s ignition system. They ignite gasoline and air inside of your engine. This gives your engine the power to propel you down the road. The spark plug takes high voltage electricity from the ignition coil and creates a spark at just right moment during the engine’s combustion cycle. This gives the engine the best mix of power, fuel economy and low emissions. However, the electrode at the end of the spark plug eventually wears out and can cause performance issues.

Spark plugs-MATROX-1

When should you replace spark plugs?

Replacement should follow the vehicle maintenance schedule. This will be listed in the vehicle’s owner’s manual. Some cars require regular replacement at 30k, 60k or 100k miles. It is possible in some cases that a spark plug might fail before the service schedule, but it’s not typically common.

Avoiding spark plug replacement can cause:

Difficulty starting your car.
Check engine light for a misfire code.
Flashing check engine light during acceleration for misfire, this can cause engine damage.
Reduced fuel economy and/or power.
Rough idle and/or unexplained engine vibration.
Failed State emission testing.

Even if only one spark plug is found to be faulty, they should always be replaced in sets. Most engines will require 4,6, or 8 spark plugs.

How do mechanics replace spark plugs?

Spark plugs are threaded into the engine’s cylinder head(s). Most cars have one plug per cylinder, so a four-cylinder engine will have four plugs, a six-cylinder engine will have six plugs, and so forth. The mechanic will:

Have the correct spark plugs on hand for your vehicle
Pull any diagnostic trouble codes that may be related to worn spark plugs.
Remove the original spark plugs and look at removed spark plugs for any clues indicating engine mis-operation exists; such as oil burning, excessively rich mixture, pre-ignition damage etc. Inform owner of any found unusual conditions.
Install new plugs using a torque wrench.
Finally, a road test of the vehicle to confirm normal operation.

Is it safe to drive with worn spark plugs?

Yes, but spark plugs that are worn enough to cause engine-misfiring have the potential to cause engine damage and overheating of the catalytic converter. Regardless of the age of the plugs, or mileage, if the engine misfires or runs poorly, the plugs should be inspected for defects. Generally, spark plug failure will not keep the engine from running, but in cases of extreme wear, you may experience a limitation in the speed at which you can drive the car. If the maintenance schedule says the plugs should be replaced, it is best to do so promptly.

When having spark plugs replaced keep in mind:

High-speed driving may accelerate spark plug wear. Consider earlier than required inspection and tune-up if you operate the car in severe conditions.
Plugs should always be promptly replaced per the manufacturer maintenance schedule even if they appear to be working perfectly.
If your vehicle is equipped with spark plug wires (as opposed to a coil-on-plug system), the wires should be replaced at the same time. This may increase the cost of your repair.
It is possible that when doing a spark plug replacement, your vehicle may also need additional parts like ignition coils, this will add to the repair cost.
Some engines require that the intake manifold be removed while replacing spark plugs. This may increase the parts and labor cost for the repair.
Leaking valve cover gaskets, which have let oil get in contact with the spark plugs, coils or wires, may be the cause of ignition system issues. Valve cover gaskets will need to be replaced in addition to the spark plugs, wires or coils. This will add to the repair cost.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Meet some of our expert Mazda mechanics

Real customer reviews from Mazda owners like you.

Excellent Rating

(6)

Rating Summary

6

0

0

0

0

6

0

0

0

0

SEE REVIEWS NEAR ME

Excellent Rating

(6)

Rating Summary

6

0

0

0

0

6

0

0

0

0

SEE REVIEWS NEAR ME

Recent articles & questions

How to Diagnose a Stalling Car

It’s It’s incredibly frustrating to have a car that stalls and it always seems to happen at the worst possible time – like when you’re in middle of a busy intersection with fifty enraged drivers behind you. There are a...

Top 10 Scenic Drives in Missouri

There’s a reason why Missouri is called the “Show Me State,” and a part of that may be because it shows visitors plenty of scenic views. From the Ozark Mountains with lush forests, to the strong waters of the Mississippi...

B1907 OBD-II Trouble Code: Air Bag Crash Sensor #2 Ground Circuit Failure

B1907 means there is a malfunction with the #2 airbag crash sensor circuit, likely because of damaged electrical components or a faulty sensor.

how to set timming for a freelander TD4 DIESEL 1998 MODEL 2.2 CAN YOU PLEASE HELP ME I HAVE BEEN TRYING TO FIX BUT I CANNOT

Hi there, thanks for writing in. Setting timing on any engine can be very tricky to do, and it's even harder to explain how to do it over a computer without being able to see the engine in person. Unfortunately...

Car got hot and lost all spark,it turns over but thats it.

There may be a couple of possibilities at play here. The overheating issue (https://www.yourmechanic.com/services/car-is-overheating-inspection) may be related to a faulty thermostat (https://www.yourmechanic.com/services/thermostat-replacement), coolant temp sensor (https://www.yourmechanic.com/services/coolant-temperature-switch-sensor-replacement) relay or potentially a blown head gasket. This can cause the car to run...

Turn signals don't work right when I have headlights on but when there off everything works right

If the turn signals and headlights are both activated by the same column-mounted "combination switch" a possibility is there an internal fault with that switch. If the two circuits are not working off the same "combination switch", there is some...

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