I have 2000 Hyundai Sonata of course. It broke down when i was driving on a road trip. It suddenly lost power and after that wouldnt even crank. I got it towed and the mechanics tried fuel pump but that didnt work. They replaced a crank shaft censor and then it worked for a while. They also replaced balance belt and timing belt. While driving up a hill it would jump crazily from 200rpm to 4000rpm. It worked for around 300mi. Then it stopped working again. Same thing happened. Just lost power. wouldnt crank. Had it fixed again.. the computer said a cam shaft censor was bad. so we changed it. also changed spark plug cables. Still doesnt work. It turned over for a few seconds but shut off suddenly. It tries to turn over now but doesnt.
You know. i took it to a mechanic and actually.... The timing belt cut the Crank Shaft Censor... So it was the crank shaft censor again. The wires were routed wrong from the first mechanic that "fixed" the car.
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check ignition fuse if fuse okay problem in ignition coil or ignition module crankshaft sensor camshaft sensor.fault could be in the ecu best to code scan vechicle before buying new parts.many things will cause no spark conditions.
you need to run a diag some of your sensor are gone.
modern cars do not run like older versions they are on electric sensor that read what you want and relay them to the ECU
that is where you prob lies
May have dirt on crank angle sensor ,loose/damaged. Located usually close to bottomf pulley on engine.. Remember to keep it simple and check for the obvious first (fuel/pump? is emergency shut off tripped accidentally from towing ? Turn ignition on and have someone listen at fuel neck for pump operation. Check all fuses.
OK!... Tell you STRAIGHT UP!.. this is a GUESSING GAME online. Fuel Pump failure 'apparent'?.. Did anyone VERIFY it was the fuel pump? Unless you guys know what you're doing, you need an EXPERT's EYE and BRAIN on this one -- it could be almost anything!.. Does the Check Engine light come ON when this happens? Whenever the "Check Engine" light comes on, there is always a DTC (Diagnostic Trouble Code) stored in the ECM (Engine Control Module). You'll need an OBDII (On-Board-Diagnostics) scanner to retrieve any codes recorded/set in ECM. Once you do this and let us know what, if any codes are set, then we can go from there... otherwise it's a GUESSING GAME! There are too many possible causes which prevent a SPARK (i.e., fuse, ECM, Wiring, ignition failure sensor, bad CKP (crank position sensor), out of time, etc.
I have a 2002 Hyundai Sonata and I had the same problem. But mine would always shift into 3rd gear and STAY there until I turned the car off. I took it to a Hyundai dealer and he had to rewire a speed sensor on top of the transmission. Apparently a little animal got up in that tight little spot and gnawed on my sensor wires. The car has run fine since. To make a long story short, it might be your speed sensor on your transmission.