could be many things, however what I found to be the problem on mine, was the gas cap
if the gas cap is not on properly, the HVAC system of the vehicle goes nuts and creates a "CHECK ENGINE" light
give it a try, after a few cold starts it will reset itself and the light will go off,
if you have a code reader this also helps to troubleshoot and get the light off
The answer is use 10W-30 for engine oil in the 2003 Hyundai Tiburon GT.
de[ends if it is a v6 or a beta i4 engine
The fan will not turn on till your vehicle is at operating temperature. Check it again when the engine is hot.
On passenger side right between firewall and the engine.
Check the Actuator
no but its is with the 2005 -2007
it follows the radiator pump on the right side of the engine you can see it better if you take off the cover.
to the right in the engine hiding in a box the stock air intake. The intake box unclips.
2 or 4 of the 6 silver like rectangles in the center pop off and there are bolts under
The manual transmission in a 2003 Hyundai Tiburon requires 2.3 quarts of gear oil.
On a 2003 Lincoln Navigator : The check engine light / service engine soon light is a drawing of an engine located directly under the center of the tachometer
181 hp