Hyundai Elantra won't start problems

Filed Aug 5, 2026 · Engine · MI

Car wouldn't start. Makes clicking sound. Mechanic diagnosed it and said timing chain is broken, valves are bent and pistons broken.

Filed Jul 28, 2026 · Engine · AZ

"I was not notified of Campaign 974 and later experienced engine problems/failure. I am requesting review of whether the campaign was completed and whether the failure is related to the condition the campaign was intended to detect. My engine failed while pulling up to a house, stopping, then preparing to move again the car stalled, car stalled, car would not start for several times tried, then started was able to drive for about 10 miles then stalled again and would not start, car has been intermittently working, car has recent and regular oil changes on time with correct oil and still failed now there is metal in the oil per the mechanics there is knocking sort of like ticking sounds - the car left me stranded due to the engine intermittently working and not working to start the car - the car will attempt to start then turn right off immediately after starting the car and sometimes not turn over the car also had been jumping when in stopped positions as soon as attempt to give gas ever so slightly

Filed May 10, 2026 · Engine · NC

Car randomly will not start or will start but have no RPM's. Last year showed a crank shaft sensor code and had it replaced but car is doing it again.

Filed Nov 16, 2025 · Electrical, Engine · GA · crash · 1 injury

Initial Fault Code: P0303 Replaced all 4 spark plugs and all 4 ignition coils. The check engine light extinguished momentarily but returned, logging P0303 and a new P0301 Replaced all 4 fuel injectors. CEL extinguished momentarily and then returned, logging P0303. Replaced the entire engine electrical harness. Concurrently, all related electrical components and connectors were meticulously cleaned with professional contact cleaner. CEL extinguished for significantly longer period of time, and then returned, re-logging P0303 and P0301. Thid suggested the ECU was "handshaking" with new components but re-logging the fault upon detecting the persistent core issue. A full compression test was performed. All cylinders reported results within specification. Using a borescope I inspected cylinder walls in piston tops. There was significant carbon residue buildup but nothing out of the ordinary for similar GDI engines. I still performed a PEA GDI specific chemical cleaning. It was a a little smoother afterwards, but the misfire persisted and CEL remained on. I also removed, cleaned, and tested common sensor faults, with no result. Also p0128 code and no start / electrical drain, and engine light started flashing numerous occasions had to stop the vehicle. I tried swapping the coils, but all that proved was that the coil was good, I did a power and ground test, it passed the connector had 12 plus volt power and a perfect resistance to static ground. The signal wire from the coil connector had perfect continuity to the ECU but had OL to chassis ground showing there was no short. A test light was used to see if anything was coming from the signal wire to the ignition coil and that test failed, there was no signal pulse. The diagnostic process has definitively proven a component-level failure inside the engine control unit. See attached file for more detailed information.

Filed Aug 21, 2025 · RI

Bought with 63000. Miles, have driven 40000 miles. Engine seized. Will not Start. Told by mechanic that engine is dead and happens frequently with this car. What are my options?. ALL UPKEEPS PERFORMED. NO WARNING.

Filed Jul 4, 2025 · Engine, Transmission · MO

I was driving and I felt my car sputter and lunge forward slightly. Then my car lost power and when I pressed down on the accelerator it would not give out any power. The battery light came on and the car would not start after pulling over.

Filed Jun 1, 2025 · Engine · NY

Check engine light came on , car was sluggish and stalled on highway , was able to glide over to the side . Would not start . This is the 4th time this happened to this vehicle , in the past I was able to put in neutral and restart . They fixed it 3 times but they are now Hyundai is now saying it needs a new engine.

Filed Apr 16, 2025 · Electrical, Engine · GA

Car stop working once I got home I notice while I was driving the car kept back firing and Jurking while driving .had a mechanic look at the car he tried to start it but it started and shut off..he even tried to jump start the car with the jumping cables but it will not start..he told me it was electrical..I have a brand new battery and a complete tune up on the car..I have not been able to drive the car in 3 weeks

Filed Dec 20, 2024 · Engine, Fuel system · MO

Engine stalled out, oil light and engine repair light both on, call will not turn over

Filed Oct 30, 2024 · Electrical, Engine · NY

I went to start my car and it would not turn over. All the lights were on, the vehicle wouldn't move out of park, and the security system kept going off. The last time this happened I had the starter replaced and the neutral safety switch and it was fine for a bit but now it's happened again. This is at least the 3rd time I've had this issue. Please help! I know I'm not the only one. I had to have AAA come and pick my car up and bring it to a garage.