How to Install a Muffler on a Chevy Blazer


The Chevy Blazer has its muffler near the rear of the truck with just a short tailpipe section on the end of the muffler. The muffler can be replaced with a new OE muffler or an aftermarket unit from any one of several auto parts stores. The muffler is a single inlet/single outlet unit. The mount used to hold it in place is a removable band that wraps around the muffler and has the mounting rods on the top to connect to the rubber mounts on the frame.

Things You'll Need

  • Jack
  • Jack stands
  • Ratchet
  • Socket set
  • Raise the rear of your Blazer off the ground with a jack. Support the truck with a set of jack stands positioned under the frame rails, making sure it is stable.

  • Raise the muffler up under the frame mounts for the muffler, slide the rubber isolator/mounts over the mounting rods, then lift the front of the muffler and align it with the exhaust pipe. Push the muffler and exhaust pipe together, then install a new exhaust clamp onto the pipe and tighten the nuts with a socket and ratchet.

  • Slide the tailpipe onto the outlet side of the muffler and install a new exhaust clamp. Tighten the nuts on the clamp with a socket and ratchet, being careful not to overtighten the nuts or you will crush the pipe.

  • Inspect the exhaust hangers and clamps on the rest of the system while you are under the truck and replace any that are rusted or have damage of some kind.

  • Raise the truck off the jack stands with the jack, remove the stands from under the truck and lower the jack. Test-run the engine to ensure you do not have excessive noise or any obvious leaks in the system.

Related Searches


  • "Haynes Repair Manuals--1994 to 2004 Chevrolet S-10 and GMC Sonoma Pick-Ups/ Chevrolet Blazer and GMC Jimmy"; John Haynes; 2002
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