Question about 2003 Hyundai Tiburon
The rpm's can vary from car to car , it all depends on the gearing in the transmission and ratios, 4.0 does seem high for a V6 the easiest thing would to be have your transmission serviced , on this car you need to get the Idle Air Control checked, In all the forums Ive read on this car , that seems to be whats wrong when the RPM's seem to high, also if you have the automatic trans and an electronic manual shifting mode does it do the same thing when you have it in the manual mode? there has been lots of discussion also on the MAP sensor,, I would suggest you have the OBD codes read to see if its listing any trouble codes within the computer that can help with locating your answers, once you get those codes if you post the results here, people will help you and explain what they mean, If you reply to this feed by replying, I will look them up for you
Posted on Jul 20, 2011
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The engine and transmission in this cars drivetrain are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s)
Jul 04, 2012 | 2003 Hyundai Tiburon
Physically look in the radiator under the cap when cool, for coolant level, and check the valve in the cap for sticking. If air is present in the radiator it can't get out, and more coolant can't get in,(from the overflow). Either clean the cap or replace it and check that it is the CORRECT cap.
Radiator fins dirty, clean with a strong stream of water, not high pressure water.
Radiator clogged, try backflushing it, or replace.
Thermostat stuck open or shut, replace it.
Water pump worn out, can no longer move enough coolant, replace it.
Fan shroud broken or missing....
Electric Fan(s) not working, Check the fan, relay, fuse and engine temperature sensor's.
Belt driven fan, belt slipping, fan clutch is bad, fan blades have flattened out.
Air dam under front bumper is gone, loose, or broken. It actually has a purpose other than scraping on the driveway or curbs. It forces air up into and thru the condenser and radiator. If it's loose, airflow can actually push it out of place making it useless or blocking the airflow. Along with that, there may also be a plastic piece attached to the bottom of, and wraps up behind the bumper. If it's loose, airflow can actually push it out of place blocking the airflow. Simply reattach it with 4 or 5 screws.
Also, if the vehicle has A/C and electric fans, one fan is dedicated to the A/C and should come on almost the instant the A/C is turned on. The engine fan will run even with the key off, that is normal. The system is trying to cool itself. Hope this helps.
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