* In the fuel tank: This is more common in this era of vehicle. If this is the case, you won't be able to access it without dropping the fuel tank. This is a more involved job.
* On the frame rail: Less common, but possible. You'll need to look along the frame rails (the large metal beams running along the sides of the van's underside) for a cylindrical canister with fuel lines attached.
To find it, you should:
1. Consult your owner's manual: This is the best place to start. It should have a diagram showing the fuel filter location.
2. Check online resources: Search online for "1993 Chevy G20 fuel filter location [engine code]" Replacing the engine code with your specific engine (e.g., 4.3L V6, 5.7L V8, etc.) will give you more accurate results. Sites like Chilton and Haynes often have repair manuals with diagrams.
3. Look under the van: Carefully inspect the fuel lines running from the tank to the engine. The filter will likely be somewhere along that route. Be extremely cautious when working near fuel lines. Fuel is flammable and you need to take proper precautions.
Before attempting any work on the fuel system, you should:
* Disconnect the negative battery terminal. This will prevent accidental sparks.
* Relieve pressure in the fuel system. There are procedures for doing this safely; search online for instructions specific to your vehicle.
If you're not comfortable working on the fuel system yourself, take your van to a qualified mechanic. Working on the fuel system incorrectly can be dangerous.
