Question about 1992 Hyundai Excel

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Hi there my 1998 hyundai excel has been giving me problems lately. once or twice a week after using the car alot during the day it just wont start for at least 30 mins to 1 hr. Ive had the cam shaft sensor replaced and a few other things changed but it is still giving me trouble. im no mechanic but i think the car may be flooding but my hyundai mechanic begs to differ. The diagnostic report comes back clear with no problems but. Any suggestions. Thank, Nick

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I had a similar problem with my 1995 Sonata... turns out, the coolant temperature sensor had gone bad and was telling the ECU (Engine Control Unit) that the engine coolant temperature was at minus (-) 40 degrees. The ECU then INCREASED the fuel to air ratio and the engine wouldn't start because the ACTUAL temperature was like 195 degrees F. - same as flooding the engine with excess fuel. There's also a MAF (Mass Air Flow) sensor which could be malfunctioning (telling the ECU that LESS air is coming in than ACTUALLY is .. OR the REVERSE). It seems to me your hyundai mechanic (supposidly TECHNICIAN) isn't a technician/mechanic at all.... sorry,, forgive me. I'm a 'PLATINUM' certified Hyundai Tech... The diagnostic procedure for solving your problem is exact and precise... he/she doesn't know what he/she is doing. Oh, there's also a possibility the TPS (Throttle Position Sensor) may be contributing to the problem. The 30 mins to 1 hr delay points to the coolant temp sensor.

Posted on May 31, 2009


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