How to Fix an Engine Not Starting?

Model: Hyundai Santa Fe (SM)

Year Model: 2002

Mileage: 137500km

Displacement: 2000cc

Fuel: Diesel

T/A : Auto

Subject: Impossible to Start The Engine – Diesel Fuel

1) Condition:

1. Impossible to start the engine.
2. Cranking ids possible.

2) Cause:

1. Fuel line is clogged with contaminated diesel fuel.

3)  Trouble Diagnosis:

1. Scan tool check.
   = Current data: fuel pressure is lower than 44 bar during cranking.
   Specification : Higher than 150 bar.
2. Check the low pressure fuel line – The fuel pump does not operate.
3. After replacing the fuel pump, Start the engine is possible but hesitation still occurs.
4. Check the service data.
   = No trouble found.
   = The amount of fuel injection is 24 cc in the idle condition.
5. Check the amount of returned fuel to find poor injectors.
6. The color of diesel fuel is different from normal fuel.

4) Repair Guides:

1. Replace all the related parts.
   (Diesel fuel, low pressure pump ,fuel tank, fuel sender, fuel filter.
2. Clean the fuel system.
   = Diagnosis tips : Engine hesitation and/ or stalling problems on  CRDI diesel engine
   = If DTC code regarding sensor or fuel pressure is displayed, check the related to control engine idle.
3. Check method of fuel injectors
   = Check the amount of returned fuel from injectors and compare it each other.
   = Check the injection power balance.
   = Disconnect the injector connector one after another in idle condition.

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