How Long Does a Glow Plug Last?

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Average rating from 5 customers who received a Glow Plugs Replacement.

A diesel engine is a very powerful and complicated piece of machinery. There are a variety of things that have to work together in order for the diesel engine to fire off and run as intended. Just like a gasoline engine, the diesel engine will need a spark to initiate the combustion process. Without this spark, the diesel engine will not be able to fire and run. The glow plug releases a small spark of electricity when the key is turned over. Every time that the diesel vehicle is started, the glow plugs will have to do the job they are intended for. However, while a gasoline engine needs the spark plugs to fire continuously during operation, a diesel engine uses compression and heat, not the glow plugs, to maintain combustion.

The glow plugs on a diesel engine will usually last around a 100,000 miles but can fail before then. Making sure that the right quality glow plugs are put in your vehicle is important in keeping it consistent and reliable. When the glow plugs begin to fail, there will be a variety of different issues that may arise. Neglecting to act when signs of glow plug trouble arise can leave you stranded. The longer that you wait to have the glow plugs replaced, the more damage you will have to contend with. The time that is put into getting the right professional help will be worth it considering the functionality a new set of glow plugs can provide. Due to the constant use that the glow plugs in an engine get, it is easy for them to become worn over time. In most cases, the glow plugs on a diesel vehicle will not get much attention until they are malfunctioning. It is your job to make sure that the signs of worn glow plugs are noticed and that you act quickly to get them replaced.

The following are some of the signs that you will notice when it is time to have your glow plugs replaced:

  • The diesel vehicle is hard to start during cold weather
  • There is more smoke coming from the vehicle than normal
  • The diesel engine is misfiring on a regular basis
  • Decreased fuel efficiency

Having a professional replace the glow plugs is your best course of action due to the complexity that is involved in this process.


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Recent Glow Plugs Replacement reviews

Excellent Rating


YourMechanic Glow Plugs Replacement Service

Average Rating

4.8/5

Number of Reviews

5

Rating Summary
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Peter

42 years of experience
1275 reviews
Peter
42 years of experience
Volkswagen Beetle - Glow Plugs - Tempe, Arizona
Yet another easy, professional service experience. Thanks Peter!
Audi A4 - Battery - Scottsdale, Arizona
Excellent job and service!

Chris

10 years of experience
281 reviews
Chris
10 years of experience
Hyundai Sonata - Car is not starting - Phoenix, Arizona
Chris was very friendly and informative.
Chevrolet K2500 Suburban - Control Arm Assembly Replacement (Front Upper Left, Front Upper Right) - Glendale, Arizona
It was an early morning appt and Chris was on time. The job had a few delays out of his control. This was 2nd time Chris worked on my truck and all looks good.

Jose

16 years of experience
433 reviews
Jose
16 years of experience
Ford Expedition - Starter - Beaverton, Oregon
He did great work. The replacement would normally require dropping the exhaust to fully access the starter (which would have to be done at a shop), but he figured out a way to do the job in my driveway, saving me a lot of money at a shop. In addition, he was on time, quick, and friendly. A pleasure.
Chevrolet Trailblazer - Pre-purchase Car Inspection - Portland, Oregon
Jose was very knowledgable and helped my wife and I feel confident about the condition of the vehicle we were wanting to purchase. He was very considerate to make sure we were aware of the things we would need to replace or keep an eye on for the future, and he was extra cautious to make sure that we knew and not the salesman. I would highly recommend the services of Jose for pre-purchase inspection and the services of YourMechanic.

Patrick

10 years of experience
158 reviews
Patrick
10 years of experience
Chevrolet Cruze - Glow Plugs - Phoenix, Arizona
Super friendly and easy going. Knew exactly what he was doing and got it done in a timely fashion. Definitely recommend using Patrick as your mechanic!

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