my Genesis G70 has a hard start when the engine is hot what to do

Solution

1. Preparation

• Gather tools and parts before starting the repair.
• Disconnect the battery to ensure safety while working on electrical components.

2. Fuel System Inspection

• Tools Required: Fuel pressure gauge, socket set, screwdriver set
• Remove the fuel pump relay from the fuse box.
• Connect the fuel pressure gauge to the fuel rail's test port.
• Reconnect the battery and turn the ignition to the "ON" position without starting the engine to check pressure readings.
• If pressure is low, inspect the fuel filter and fuel pump for issues; replace as necessary.

3. Ignition System Repair

• Tools Required: Spark plug socket, torque wrench
• Remove the spark plugs and inspect them for wear or carbon buildup. Replace if necessary.
• Check the ignition coils for proper operation; replace any faulty coils.
• Reinstall spark plugs and torque them to the manufacturer's specifications (typically around 15-20 lb-ft).

4. Engine Coolant Temperature Sensor Replacement

• Tools Required: Socket set, pliers
• Locate the engine coolant temperature sensor (usually near the thermostat housing).
• Disconnect the electrical connector and loosen the sensor using a socket.
• Remove the sensor and inspect the O-ring for damage; replace if necessary.
• Install the new sensor, tighten to the manufacturer's torque specification, and reconnect the electrical connector.

5. Final Assembly

• Reinstall the fuel pump relay.
• Reconnect the battery and ensure all tools are removed from the engine bay.