Buick Riviera 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 Buick Riviera Spark Plug Replacement is $172 with $32 for parts and $140 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
1999 Buick RivieraV6-3.8L Turbo	Service typeSpark Plug Replacement	Estimate$248.60	Shop/Dealer Price$275.60 - $348.50
1998 Buick RivieraV6-3.8L Turbo	Service typeSpark Plug Replacement	Estimate$239.59	Shop/Dealer Price$264.82 - $336.40
1992 Buick RivieraV6-3.8L	Service typeSpark Plug Replacement	Estimate$267.39	Shop/Dealer Price$285.74 - $334.94
1993 Buick RivieraV6-3.8L	Service typeSpark Plug Replacement	Estimate$297.99	Shop/Dealer Price$323.99 - $396.14
1995 Buick RivieraV6-3.8L Turbo	Service typeSpark Plug Replacement	Estimate$239.59	Shop/Dealer Price$266.32 - $339.02
1990 Buick RivieraV6-3.8L	Service typeSpark Plug Replacement	Estimate$252.79	Shop/Dealer Price$271.13 - $320.33
1996 Buick RivieraV6-3.8L Turbo	Service typeSpark Plug Replacement	Estimate$239.59	Shop/Dealer Price$264.86 - $336.47
1997 Buick RivieraV6-3.8L	Service typeSpark Plug Replacement	Estimate$239.59	Shop/Dealer Price$264.85 - $336.44

Show example Buick Riviera 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 Buick mechanics

Real customer reviews from Buick owners like you.

Excellent Rating

(37)

Rating Summary

33

2

0

2

0

33

2

0

2

0

SEE REVIEWS NEAR ME

Robert

28 years of experience

333 reviews

Robert

28 years of experience

by william

Buick Riviera V6-3.8L Turbo - Inspection / Diagnostics - Silver Spring, Maryland

Explained the situation and did not try and rip me off.

Jamahl

21 years of experience

830 reviews

Jamahl

21 years of experience

by Ric

Buick Riviera V6-3.8L - Other Inspections - Casselberry, Florida

Don't know if jamahl was successful with the repair yet,waiting for a heavy rain.will keep in touch.Thanks,Ric

Jamahl

21 years of experience

830 reviews

Jamahl

21 years of experience

by Ric

Buick Riviera V6-3.8L - Other Inspections - Casselberry, Florida

Jamahl diagnosed & repaired problem other techs couldn't figure out.He was outstanding! Thanks,Ric

Marco

30 years of experience

329 reviews

Marco

30 years of experience

by Jonathan

Buick Riviera V8-5.0L - Pre-purchase Car Inspection - Alta Loma, California

Extremely helpful and friendly! Will definitely reuse this service because of him.

Excellent Rating

(37)

Rating Summary

33

2

0

2

0

33

2

0

2

0

SEE REVIEWS NEAR ME

Recent articles & questions

P0026 OBD-II Trouble Code: Intake Valve Control Solenoid Circuit Range/Performance (Bank 1)

P0026 P0026 trouble code definition Intake Valve Control Solenoid Circuit Range/Performance (Bank 1) What the P0026 code means P0026 is the OBD-II generic code indicating the engine control module (ECM) has determined that the variable valve lift solenoid for the...

How to Modify Your Car Payments Without Refinancing

A person’s financial situation can change while they are paying off a car loan (https://www.yourmechanic.com/article/how-to-quickly-pay-off-a-car-loan-by-patrick-haas), and if it changes for the worse, then it will be difficult to make the payments on time each month. This happens to many car...

How to Shop for a Portable Car Video System

The convenience and transportable nature of a portable car video system (https://www.yourmechanic.com/article/how-to-purchase-a-dual-monitor-dvd-system-for-your-car) makes it perfect for families on the go. Whether your kids like watching their favorite movies or cartoons, portable car video systems can keep your family members occupied...

Car leaking gas and oil

Fluid and oil leaks unfortunately will only get worse over time. The main fluids that could be leaking from the rear could be a serious concern for the brake fluid or fuel. Either of these fluids leaking could be potentially...

A previous owner installed a radio and misplaced a lead, when the heat, radio or ac is ran the battery drains what does this mean?

If the battery is new and charging system output has been measured and is within specifications, the only reason a battery will discharge is if the car sits for a long period of time (batteries will self-discharge even if not...

Why does My car shakes or roughly vibrates only in idle & reverse ?

This may be a sign of a faulty MAP sensor as the vehicle responds adversely to a load put on the motor (i.e. putting it in gear, making turns (which makes use of the power steering pressure switch) turning on...

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