Engine quickly overheats


Engine quickly overheats

Symptom: Engine quickly overheats. Engine runs fine but gets very hot shortly after you start it. This problem usually occurs after only five minutes of running or after traveling about a mile. You may or may not notice steam coming from the hood or smell coolant.

Possible causes:

1. Engine coolant level may be very low.

The Fix: Refill coolant to proper level.

2. Engine’s drive belts may be broken or slipping.

The Fix: Tighten or replace belts.

3. The electric cooling fan may not be coming on.

The Fix: Repair or replace cooling fan. Repair wiring. Replace cooling fan temp sensor.

4. The ignition timing may be set wrong.

The Fix: Adjust ignition timing.

5. There may be a vacuum leak.

The Fix: Check and replace vacuum lines as required.

6. The engine may have mechanical problems.

The Fix: Check compression to determine engine condition.

7. The engine’s thermostat may be stuck closed.

The Fix: Replace thermostat.

8. There may be a leak in the cooling system.

The Fix: Repair leak and refill coolant. Cylinder head gasket(s) may be bad.

The Fix: Replace cylinder head gasket(s).

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