* On the frame rail: This is a common spot for many GM vehicles of that era. Look along the frame rails, near the fuel tank, for a cylindrical canister.
* Near the fuel pump (in the tank): Some models had the fuel filter integrated into the fuel pump module inside the fuel tank. This is less accessible and requires tank removal to replace.
To find it definitively, you should:
1. Consult your owner's manual: This is the best resource.
2. Use a repair manual specific to your Blazer's engine: Chilton or Haynes manuals provide diagrams and detailed instructions.
3. Look online: Search for "[Your Blazer's Engine] fuel filter location" combined with "1987 Chevy Blazer". Sites like YouTube can sometimes have helpful videos.
Without knowing the specific engine (e.g., 2.8L V6, 4.3L V6, 5.7L V8, etc.), it's impossible to give a precise location.
