Q: Hi I have a 2004 2.4L automatic Hyundai Sonata. I change the timing belt as it has chewed teeth. I also change the headgasket and

asked by on

Hi I have a 2004 2.4L automatic Hyundai Sonata. I change the timing belt as it has chewed teeth. I also change the head gasket and the 2 exhaust valves on number 4 cylinder. Changed the crank sensor as it had been destroyed by the teeth that were in the timing cover. All back together and I have compression and fuel but no spark. I have checked the crank sensor installation and it is running correctly ie the sensor plate is the right way around and is running correctly through the sensor magnetic field. Ive checked all the timing marks and everything lines up on TDC after numerous revolutions. The crank sensor only has .3 Volts coming from the PCM at the connector to the CKS which I think is the problem as I believe I read it should be around 5 Volts. so it all cranks etc but no spark at the plugs. Any suggestions?

My car has 147000 Kms
My car has an automatic transmission.

Hi there. Since you completed so many different repairs, it unfortunately opens the door to multiple possible issues that might be the source of your hard to start issue. The first thing I would do is knock off the easy checks; by verifying that all electrical connections, fuel and / or vacuum lines are correctly attached. If everything checks out there, I would either replace the wiring harness to the crankshaft position sensor or check the output from the PCM. Most of the time when crankshaft position sensor issues exist, it’s the wiring harness itself that is faulty. Try those steps and if you still need a hand diagnosing your problem, feel free to contact one of our mobile mechanics and they can come to your location and complete a car is hard to start inspection.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Hi I have a 2004 2.4L automatic Hyundai Sonata. I change the timing belt as it has chewed teeth. I also change the headgasket and

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Check Engine Light illuminated in car.

The Check Engine Light coming on is to alert the driver that the engine or powertrain is having a problem that it has detected. The light could be something simple like the gas cap was left loose to the engine...

Q: Q: Steering wheel locked and key won't turn

Hi Patrice. Thanks to contacting us today. One thing that might be causing this issue - that was not mentioned is the brake switch. This component is a safety system that will lock the key in the ignition and the...

Q: The clutch on my ac compresser is leaking out really thick black tar like stuff when it is spinning. What is it? And why is it doi

Hello, thank you for writing in. A black goo coming from the air conditioning compressor is more commonly known as "black death". It occurs when the refrigerant in the air system breaks down and is no longer the chemical it...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...