How to Change an Oil Pan Gasket on a 4x4 Blazer

Written by robert good
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How to Change an Oil Pan Gasket on a 4x4 Blazer
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The 4x4 Blazer models come with either a six-cylinder engine or an eight-cylinder engine. The oil pan is in the same place on both model types and the process is basically the same. Replacing the oil pan gasket is important because without the gasket, or if the gasket is damaged, you will have serious problems with your engine. The gasket is located on the edge of the oil pan where the oil pan meets the engine block on the bottom of the engine.

Skill level:
Moderate

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Things you need

  • Jack
  • 2 jack stands
  • Oil drain pan
  • Ratchet set
  • Metal scraper
  • Replacement gasket
  • Torque wrench

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Instructions

  1. 1

    Raise the front end of the 4x4 Blazer model using the jack. Support the front end of the Blazer with a pair of jack stands. Get underneath the engine and place the oil drain pan under the oil pan's drain plug. Remove the Blazer's oil pan drain plug using the ratchet set and drain the oil from the oil pan. Replace the Blazer's oil pan drain plug to the oil pan and tighten the plug using the ratchet set.

  2. 2

    Remove the oil drain pan from under the Blazer. Remove the bolts that mount the oil pan to the bottom of the engine using the ratchet set. Pull the oil pan off the engine and remove the gasket using the metal scraper to scrape the gasket from the oil pan.

  3. 3

    Place the replacement gasket onto the oil pan and place the oil pan back onto the bottom of the engine. Replace the bolts around the edge of the oil pan and tighten the bolts using the torque wrench. The bolts will need to be tightened to the torque specification for that particular year and engine type.

  4. 4

    Remove the jack stand and lower the Blazer to the ground.

Tips and warnings

  • The bolt sizes and torque specifications are different for almost every Blazer model.

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