How-to correctly remove a stuck diesel Duramax glow plug - Mechanics Minute

In this video tutorial, Eric Merchant from Merchant Automotive will demonstrate how to correctly remove and replace worn out glow plugs in a GM Duramax diesel engine.

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Is your Duramax proving difficult to start on cold mornings? You may need to replace worn out or broken glow plugs. Glow plugs are pencil-shaped heating elements that when electrified emit heat & light, hence the term glow plug. This is similar to the heating element in a toaster.

Diesels vehicles utilize compression to create combustion. The piston compresses the air to the point that fuel sprayed into the cylinder ignites. Cold temperatures can hinder diesel engines from reaching normal operating temperatures, and can increase the cranking time to start the engine. Having operational glow plugs is key to starting your diesel vehicle in these conditions as the heat they produce sufficiently warms the air to allow combustion to take place.

Replacing glow plugs can be tricky however. Caution must be taken in order to not break the glow plug off in the cylinder. Breaking it can cause piston, cylinder, valve, or head damage that could require a costly engine repair.

Looking for the parts to get this particular job done? Look no further! Merchant Automotive is the premier Duramax and Allison parts specialist. Our team has the products and experience you need to help you get back on the road.

Shop for the tools and parts shown in the video by clicking here:
https://www.merchant-automotive.com/s...\&page=1

Have questions? Reach out to our technical specialists today!
(616) 772-9551
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