Buick Riviera Distributor Cap and Rotor Replacement at your home or office.

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Distributor Cap and Rotor Replacement Service

How much does a Distributor Cap and Rotor Replacement cost?

On average, the cost for a Buick Riviera Distributor Cap and Rotor Replacement is $183 with $43 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1990 Buick RivieraV6-3.8LService typeDistributor Cap and Rotor ReplacementEstimate$306.50Shop/Dealer Price$347.98 - $464.30
Show example Buick Riviera Distributor Cap and Rotor Replacement prices

What are the Distributor Rotor and Cap all about?

When the engine is running, high voltage created by the ignition coil travels through the coil wire to the ignition rotor. As the ignition rotor turns in the distributor, the rotor distributes the spark by sending it in a synchronized order through the spark plug wires to the spark plug located in each of the engine's cylinders.

The distributor is a main component of the ignition system. It takes very high voltage and delivers it to fire the spark plugs.

Keep in mind:

  • When the distributor rotor and cap are replaced, the entire ignition system should be inspected.
  • After replacing the distributor rotor and cap, the ignition wires will need to be reinstalled.

How it's done:

  • Check the ignition system.
  • Replace the cap and rotor if found faulty.
  • Re-check the ignition system.
  • Check ignition timing if needed.

Our recommendation:

Whenever your vehicle has routine maintenance or servicing, the ignition system should be inspected thoroughly. If you ever notice your ignition system having a hard time (such as your car having trouble turning on or staying on), then you should schedule an inspection.

What common symptoms indicate you may need to replace the Distributor Rotor and Cap?

  • Engine misfires.
  • Car does not start.
  • Noises from the engine.
  • Check engine light is on.

How important is this service?

The distributor rotor and cap is used when the engine is running. During this time, high voltage is created by the ignition coil, and sent through the coil wire to the ignition rotor. This rotor turns inside the distributor, and as it does so, it evenly distributes sparks to the spark plugs, through the spark plug wires. The spark plugs then use this spark to ignite the fuel mixture, which allows the engine to keep running.

If the distributor rotor and cap malfunction, the voltage from the ignition coil won’t be redistributed to the spark plugs, and your engine will either have a hard time running, or won’t run at all.

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Rating Summary
33
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Steven

15 years of experience
425 reviews
Steven
15 years of experience
Buick Riviera V6-3.8L - Crankshaft Harmonic Balancer - Phoenix, Arizona
After Sun Devil quoted me a ridiculous price, I turned to Your Mechanic. Steven was my mechanic and was a really cool guy. He arrived on time and finished the job on time. My car drives perfectly again and I will definitely go to him next time my car has an issue.

Ejnar

30 years of experience
107 reviews
Ejnar
30 years of experience
Buick Riviera V8-6.6L - Car is not starting - Milpitas, California
Quickly found the problem and the solution.

Rocco

23 years of experience
302 reviews
Rocco
23 years of experience
Buick Riviera V6-3.8L Turbo - Oil Change - Riverside, California
Friendly and professional. Thank you, Rocco.

Dan

40 years of experience
1080 reviews
Dan
40 years of experience
Buick Riviera V6-3.8L - Water Pump - Alpharetta, Georgia
Dan was excellent to work with. I would highly recommend him and I will definitely use him again. He is quite knowledgeable about many types of cars and very willingly answers all questions and offers recommendations when asked. I found him to be very friendly, courteous and dedicated to getting the job done right in a high quality and professional manner. He even checked the air in all the tires and test drove it afterward. An overall first-rate experience with Dan.

Excellent Rating

(37)

Rating Summary
33
2
0
2
0
33
2
0
2
0
Number of Buick Riviera services completed
407+
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