[header] How to clean a fuel filter [title] Relieve the pressure in your fuel system. [step] Check your owner's manual to find the fuse for your fuel pump. Remove it, then start your engine and let it run for 1 to 2 minutes. 
It might sputter out before the time's up, which means the pressure is relieved. [substeps] While the engine might sputter out, this isn't necessary to relieve the pressure.