2004 KIA RIO, JUST OVER 100,000 MILES WAS RUNNING FINE, SETTING AT A STOP LIGHT ENGINE DIED. TRIED TO START SEVERAL TIMES. WONT FIRE. CHECK AIR FILTER SMELLS LIKE GETTING FUEL. THOUGHT IT TO BE ELECTRICAL. SO CHANGED SPARK PLUGS,WIRES, ELECTRICAL COIL BANK. ENGINE TURNED OVER ONCE AND LOCKED? POSSIBLE BROKEN TIMING BELT (NEVER BEEN CHANGED SINCE NEW) ? VALVE UP AGAINST PISTON????
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If the timing belt has over 100,000 miles on it revisit the timing belt possibilty. even though it can look ok it can have stripped one or two teeth. next listen for the fuel pump in the tank to run for about 5 seconds after you turn on the key. if it's not you likely need a new one. Next check for spark at the spark plug. you can do this buy removing the wire from the plug & inserting another one into the wire then hold the threaded part against a metal part of the engine & have a friend turn over the engine. if you see spark your good. if there is no spark you could have a number of issues & you will need to follow that up. All this is asuming the engine is turning over. if not your starter may be at fault.
Good luck let me know
Start with the simple and replace the fuel filter. The fuel filter should be replaced every 15,000 miles or once a year to ensure the fuel system is running 100%. Auto Zone will have the fuel filter and can give you the step by step instructions to getting the job done with common tools. If it's the fuel pump failure, you have not gotten the car restarted. Good luck and keep me posted, be glad to know you got your car running 100% again soon and please rate.
u need a special test gauge, it hooks to a test port on the supply pipe to the engine fuel injectors's, looks like a metal tire valve, u may be able to borrow this fuel pressure test guage from Kragen or Autozone, call them and check.
If the check engine light is going on and off then it is very highly likely pointing to a misfire, and this could be due to any number of things, and your best bet by far is to have a code read done as this will give you information as to the cause of the problem, if not point you directly at the problem itself.
It could be coil packs, spark plugs, injectors, crank sensor, cam sensor, any number of things.