Oldsmobile Custom Cruiser Spark Plug Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(19)

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.

Customer Ratings

(19)

Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a Oldsmobile Custom Cruiser Spark Plug Replacement is $182 with $42 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1992 Oldsmobile Custom CruiserV8-5.7LService typeSpark Plug ReplacementEstimate$347.88Shop/Dealer Price$385.64 - $487.58
1992 Oldsmobile Custom CruiserV8-5.0LService typeSpark Plug ReplacementEstimate$291.43Shop/Dealer Price$315.75 - $382.96
1991 Oldsmobile Custom CruiserV8-5.0LService typeSpark Plug ReplacementEstimate$335.27Shop/Dealer Price$370.59 - $470.70
1990 Oldsmobile Custom CruiserV8-5.0LService typeSpark Plug ReplacementEstimate$306.03Shop/Dealer Price$330.57 - $397.94
Show example Oldsmobile Custom Cruiser 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 Oldsmobile mechanics

Real customer reviews from Oldsmobile owners like you.

Excellent Rating

(19)

Rating Summary
19
0
0
0
0
19
0
0
0
0

Dwaine

46 years of experience
39 reviews
Dwaine
46 years of experience
Oldsmobile Custom Cruiser V8-5.0L - Distributor Rotor and Cap - Saint Petersburg, Florida
outstanding service from Dwaine. I'm very pleased .

Breck

21 years of experience
681 reviews
Breck
21 years of experience
Oldsmobile 98 V6-3.8L Turbo - Spark Plugs - Houston, Texas
Excellent service. Prompt and punctual. I appreciate his knowledge of automobiles. I appreciate his friendly demeanor. I appreciate how he explains things as well.

Joe

21 years of experience
126 reviews
Joe
21 years of experience
Oldsmobile Alero L4-2.2L - Spark Plugs - Chicago, Illinois
Good Job

Gregory

18 years of experience
37 reviews
Gregory
18 years of experience
Oldsmobile Aurora V6-3.5L - Spark Plugs - Homestead, Florida
Great customer service and excellent communication, explaining each action

Excellent Rating

(19)

Rating Summary
19
0
0
0
0
19
0
0
0
0
Number of Oldsmobile Spark Plug Replacement services completed
209+
services done by our mechanics
TOTAL NUMBER OF EXPERT Oldsmobile MECHANICS
300+
experts on our platform

Recent articles & questions

What Causes the AC System to Leak?
Your car’s air conditioner is responsible for keeping the interior cool and comfortable on hot days. However, in order to do that,...
How to Get a Colorado Driver's Permit
Colorado Colorado has strict laws regarding driver’s license eligibility. All drivers in Colorado must obtain a learner’s permit, and drive with that permit, while they are under 21 years old. In order to obtain a driver’s permit, there are certain...
2012 Honda Civic vs. 2012 Ford Focus: Which One Should I Buy?
One of the best ways to cope with pain at the gas pump is to look at downsizing your vehicle, and today’s compact cars are a great option that allow you to keep the space that you need to move...

Knocking noise under hood

Without actually hearing the noise, it is difficult to determine the exact cause of your concern. It could be low oil pressure, valve adjustment, bearing failure, etc. I suggest having a certified technician, like one from YourMechanic, determine the exact...

Need to get an alternator replaced on my 2006 ford escape. Was quoted $525 and an additional $125 for the belt. Does this sound correct?

Hello there. Costs will vary depending on whether you have the 4 cylinder or 6 cylinder. The 6 cylinder requires 3 hours to complete the two tasks (alternator plus belt). The 4 cylinder requires a little over 2 hours. These...

I turned my key and for a brief moment the [engine](/topics-engine-chevy/) signals turned on, then quickly all the engine signals turned off on the dash. Now when I turn the key nothing happens. No lights and no engine sound.

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 (844) 997-3624 · hi@yourmechanic.com