After replacing the starter on my 2004 Hyundai Accent, it would not start after the car was hot. Started right up when cold but after driving to work 55 miles, it would crank like it had a low battery (battery was new) After it cools, it starts right up. The local mechanic changed the starter 3 times and it stilll does the same thing. Then, it wouldn't start at all. Cranked fine but no igintion like it was either flooded or the fuel pump had died. Had it towed to the local shop and it started right up for them. They started it several times a day for several days. One morning when they tried to start, it only cranked over but then the valve cover exploded. We don't have a clue - the oil sump is NOT filled with gasoline. They replaced the valve cover and it started right up. We have no idea what happened or what would prevent it from happening again. Can anyone help?
That sounds like a timing/ cooling system issue. The coolant sensor would adjust the timing etc. Your tech would have to scan the car & check the live readings (HOT & COLD) & check the emissions. Put all the pieces together & solve the puzzle
SOURCE: 2001 Hyundai Accent cranks, won't start
its the camshaft position sensor . Its located (atleast on my 1.6L) to the right of the front HOT plate the conection runs between the engine and the right side fan. easier to work on if you take off the air intake thats by the left front side of the battery. you will be working between the fan and the motor. only one bolt but is tricky so u need a 1/4 inch nuckle with a 1/4 extention. once located and you have the right tools it will only take 30 minutes to replace....dont forget to take off negative battery cable before you start.
SOURCE: Care does not start on a hot day
Yes, have seen this before. The cause most often attributed to this problem is the coolant temperature sensor (it's lying to the ECM about the engine's REAL and ACCURATE temperature). NOW, don't take my word for it, take the vehicle to a Hyundai Service Center/dealership and have them diagnose it to VERIFY that's EXACTLY what's causing the problem (could be a number of other things).
SOURCE: 2001 Hyundai Accent. Heating and stalls
YOUR WATER PUMP GASKET IS LEAKING.ITS NOT SEALING.IF YOU DID USE GASKET SEALANT ON WATER PUMP GASKET IT WILL LEAK.ALSO YOU NEED TO PUT HALF ANTIFREEZE AND HALF WATER.BECAUSE WATER WILL BOIL OR EVAPORATE.WHEN ENGINE TEMP GET ABOVE 212.YOU NEED ANTIFREEZE TO RAISE THE BOILING POINT.SO YOUR ENGINE WILL NOT OVER HEAT.EVERY TIME ENGINE OVER HEAT IT DAMAGING THE TRANSMISSION.I WOULD FIX IT.QUICKLY.CHECK TO SEE IF WATER PUMP LEAKING.YOU MIGHT HAVE TO REMOVE AND REPLACE THE GASKET AGAIN.
SOURCE: Hi, I've an accent crdi 2003. In mornings engine
I would check the catlic converter to see if its not blocked, best thing to do is to go to a exhaust shop and they can do vacume test or tempreature test.
SOURCE: 1998 Hyundai Excel stalls when idling or low gear?
You likely have broken pieces of catalyst in the exhaust getting wedged in the exhaust pipe just before the main catalytic converter. This will cause intermittent stalls when the vehicle is warm and sometimes will take 20 minutes to cool down before starting and driving properly a short distance. On my Santa Fe I cut the pipe near the catalytic converter, removed the broken catalyst, then had to replace the "front" catalytic converter.
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