Cooling System Diagnosis. Opel Sintra 1997

For 1990-2009 cars

Problems not requiring disassembly of the cooling system:

• | Large obstructions that block the radiator or the condenser

• | Ice, mud, or snow-remove

• | Engine oil overfill-check engine oil dipstick

• | Incorrect radiator for application-install the correct radiator

• | Missing or damaged air baffle or lower air deflector-repair or replace as necessary

Problems requiring disassembly of the cooling system:

• | An incorrect or damaged fan-repair or replace as necessary

• | Faulty emission system components (could cause overheating at idle)-replace the faulty component

• | Pressure check cooling system with the pressure radiator cap installed

• | Faulty coolant pump-replace the coolant pump

• | Plugged radiator tubes

• | Internal system leaks

• | The head gasket

• | A cracked block

• | The timing chain/belt cover

• | The intake manifold gasket

• | Plugged coolant passages in the cylinder head(s)-remove the head(s) and check visually