* On the frame rail: This is the most common location. Look along the frame rail, near the fuel tank, for a cylindrical canister. It might be somewhat hidden or protected.
* In the fuel tank: Less common in this year, but possible. If it's in the tank, you'll need to drop the tank to access it.
To find it with certainty:
1. Consult your owner's manual: This is the best resource. It will have a diagram showing the location.
2. Use a repair manual: A Haynes or Chilton manual for your specific year, make, and model will have detailed diagrams and instructions.
3. Search online: Search for "1986 Chevy S10 Blazer fuel filter location" along with your engine size (e.g., "2.8L," "4.3L"). Images from other owners might help you pinpoint it.
Remember to be careful when working around fuel lines. Fuel is flammable, so avoid sparks and open flames. If you're not comfortable working on your vehicle yourself, it's best to take it to a mechanic.
