I have a 1997 Toyota Tacoma 4WD single cab. I know how y'all feel about folks that drive trucks that don't really need them, but I use mine for work and play (I'm a county environmentalist and avid backpacker). My truck was running sluggishly the other day and then died completely and could not be re-started. I had it towed home and began the arduous task of finding the problem. It's getting fuel to the engine side of the fuel filter and the plugs are getting fire. My brother-in -law suggested that the timing is off, that maybe not enough fuel is getting through the filter or possibly that the guts of the catalytic (or cadillac, as some around here like to say) converter may have broken down and blocked the exhaust. Did I mention the truck has 311,000 miles on it? I plan to replace the fuel filter and maybe try to remove the converter and see what happens, but I can't figure out how to adjust the timing. The distributor cap cannot be turned, so how can it be adjusted?