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Spark Plug Replacement at your home

Our certified mechanics come to you · Backed by 12-month / 20,000 km gold standard warranty program.

8AM - 6PM Monday to Saturday

Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

A Spark Plug Replacement is usually between $100 to $200, including the cost of labor. The price will depend on the type of vehicle you drive.

What do Spark Plugs do?

Spark plugs are one of the key components of your vehicle’s ignition system. They light up gasoline and air inside of your engine. This gives your engine the power to drive you down the road. The spark plug receives high voltage electricity from the ignition coil and generates a spark at just the right moment during the engine’s combustion cycle. This provides 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 produce performance issues.

How often do you need to change spark plugs?

Replacement should follow the vehicle maintenance schedule. You should change your spark plugs every 50,000 km for most vehicles. It is likely in some cases that a spark plug might fail before the service schedule, but that’s rare.

It is also suggested that you change your Spark Plug Wires at the same time, or you may still encounter misfires or other problems.

Bad Spark Plug Symptoms:

  • Trouble starting your car.
  • Examine engine light for a misfire code.
  • Flashing check engine light during acceleration for misfire, this can result to engine damage.
  • Reduced fuel economy and/or power.
  • Rough idle and/or inexplicable engine vibration.
  • Failed emission testing.
They should always be changed in sets even if only one spark plug is found to be faulty. Most engines will require 4,6, or 8 spark plugs.

How to change 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 precise spark plugs on hand for your vehicle
  • Pull any diagnostic trouble codes that may be associated to worn spark plugs.
  • Take out the original spark plugs and look at removed spark plugs for any clues indicating engine mis-operation exists, such as excessively rich mixture, pre-ignition damage, oil burning, etc. Notify owner of any found unusual conditions.
  • Install new plugs using a torque wrench.
  • Finally, a road test of the vehicle to approve normal operation.

Is it safe to drive with worn spark plugs?

Yes, however, spark plugs that are worn enough to cause engine-misfiring have the possibility to cause overheating of the catalytic converter and engine damage. If the engine misfires or runs inefficiently, the plugs must be examined for defects regardless of the age of the plugs or mileage. In general, 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 suggests the plugs should be changed, it is best to do so on time.

Spark Plug Replacement Reviews

Allen Kumar
Allen Kumar
14:32 05 Mar 18
The service and convenience are HEAVEN!!!My wife dripped off our kids at the arena for a hickey game. As she was parking, there were funny jerks. Thankfully she was able to park. But the car was not starting. She took the kids to the hockey game. While watching the game, she called instamek and left he keys at the information desk for the mechanic. 4 hours later after the warm up, the game,... and dressing the kids, my wife and the kdis walked to the parking to the now fully functioning vehicle. Here is a list of what they did (skme of the work was elevtive as i had asked for it)1) diagnostics2) new sparks plus3) new engine starter4) changed engine oil5) 4 break pads and rotars6) my passenger head lamp (broken from before)7) new battery8) new beltMy wife didnt even meet the mechanic. She disnt even leave the arena. Everything was explained and oid for via the phone call. My next plan is to have my yearly tune ups done while I’m at costco, the gym, or work!!!Thanns guysread more
A Google User
A Google User
08:45 23 Aug 16
These guys are amazing! Came into my driveway, changed my tires and spark plugs while I was drinking tea in the house. Got out, into the car, and drove off with it like it was brand new.

We are open from 8am - 6pm Monday to Saturday