Engine Stallingwhen shift to “R”/Elantra XD

model: Elantra ( XD)	model year: 2004	mileage:40900 km
Displacement: 2000cc	Fuel: Gasoline	T/A all

Subject: Engine stalling

1) Condition:

• Engine stalls when shifting lever to “R” position.

2) Cause:

• dowel pin on the camshaft is broken.

3) Diagnosis:

1. Scan tool check = no trouble code.
2. Check th ignition coil = it is normal.
3. Inspect the noise from the fuel pump.
4. Operating sound of the injector is normal and the oscilloscope shows normal wave form.
   =ECM and sensor s wiring are normal.
   =Mechanical fault is suspected.
5. Check the timing mark.
6. Abnormal compression noise is detected when starting engine.
7. Remove rocker cover for checking valve timing.

NOTE = Camshaft and # 1 TDC position are mismatched.

4) Repair Guide:

1. Replace the valve timing.
2. Replace the camshaft assy.
3. more