GMC R3500 Glow Plugs Replacement Costs

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Glow Plugs Replacement Service

How much does a Glow Plugs Replacement cost?

On average, the cost for a GMC R3500 Glow Plugs Replacement is $126 with $21 for parts and $105 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
1987 GMC R3500V8-6.2L Diesel	Service typeGlow Plugs Replacement	Estimate$178.77	Shop/Dealer Price$198.33 - $236.22
1989 GMC R3500V8-6.2L Diesel	Service typeGlow Plugs Replacement	Estimate$156.77	Shop/Dealer Price$176.35 - $214.26
1991 GMC R3500V8-6.2L Diesel	Service typeGlow Plugs Replacement	Estimate$146.27	Shop/Dealer Price$165.01 - $202.28
1988 GMC R3500V8-6.2L Diesel	Service typeGlow Plugs Replacement	Estimate$156.77	Shop/Dealer Price$176.32 - $214.21
1990 GMC R3500V8-6.2L Diesel	Service typeGlow Plugs Replacement	Estimate$146.27	Shop/Dealer Price$165.02 - $202.31

Show example GMC R3500 Glow Plugs Replacement prices

What is the Glow Plugs all about?

Diesel fuel is self-igniting under pressure. However, very cold temperatures can prevent ignition. This is where glow plugs come into play. Unlike spark plugs, which create an arc of electricity, glow plugs preheat the cylinder so the fuel can ignite more easily. The electrode heats up, glowing like the filament in an incandescent light bulb, and provides the necessary assistance to ignite the diesel fuel.

Keep in mind:

Removing glow plugs from many vehicles can be difficult and labor intensive.

How it's done:

The vehicle battery is disconnected
The defective glow plugs are removed
The new glow plugs are installed and wiring is connected
The battery is reconnected
The glow plug system is checked for proper operation and the vehicle is road tested for proper operation

Our recommendation:

The glow plugs will eventually fail and require replacement, though not at any specific interval. It may be necessary to replace the wiring harness, the glow plugs, and the relay that controls the glow plugs. In some vehicles, the relay actually fails more often than the glow plugs. If you suspect a problem with the glow plugs on your diesel engine, have one of our expert mechanics inspect and replace them as necessary.

What common symptoms indicate you may need to replace the Glow Plugs?

Hard/slow starting in cold weather
Not starting in cold weather (barring battery or other equipment failure)
More smoke than usual when starting (exhaust)
Misfire on a cylinder until the fuel warms up enough

How important is this service?

Glow plug replacement isn’t like replacing spark plugs, and some diesel owners can go for 100,000 miles or more without changing them. The relays fail more often than the plug, which is another reason it is very important to have the problem diagnosed by one of our expert diesel mechanics. This will ensure that you’re fixing the underlying problem, rather than just addressing symptoms, saving you time, money and headaches.

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Tomas

18 years of experience

226 reviews

Tomas

18 years of experience

by Shaun

GMC R3500 V8-5.7L - Brake System Inspection - Newark, New Jersey

Pretty good. My inspection for my brakes went very quick, (a little too quick.) Not the most thorough inspection. However, Tomas came to the same conclusion that I had already suspected and the problem is now "dually" analyzed. 15 minutes, and I'm good. Tomas was quite knowledgeable and polite. He came with the proper tools and equipment to say the least and was promptly on time for the booked appointment. I would consider requesting Tomas again for similar work. Thanks again to Tomas and the team at YourMechanic for helping out.

Arturo

28 years of experience

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Arturo

28 years of experience

by David

GMC Envoy L6-4.2L - Loud screeching noise when I start the car - Imperial Beach, California

Mr. Lopez was very knowledgeable, friendly, and arrived early. He diagnosed the issues quickly, showed them to me and provided the next steps.

Angel

18 years of experience

106 reviews

Angel

18 years of experience

by William

GMC Sonoma V6-4.3L - Brake Pads Replacement (Front) - Homestead, Florida

Very professional, did a good job in a short amount of time

David

26 years of experience

180 reviews

David

26 years of experience

by MARK

GMC Sierra 2500 HD V8-6.0L - Wheel Hub Assembly Replacement (Driver Side Front) - Ocala, Florida

David knows his stuff and he was friendly too

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