Pre-Diagnostic Preparations

Review Service Precautions before performing the following procedures:
- Check the radiator coolant level, drive belt tension and engine vacuum line connections.
- Check radiator air flow and radiator fan operation.
- Start engine and allow to warm up to normal operating temperature.

WARNING: Do not remove radiator cap when engine is hot, personal injury can result.

- If vehicle has been run recently, wait 15 minutes before removing cap. Place a rag over the cap and turn it to the first safety stop. Allow pressure to escape through the overflow tube. When the system stabilizes, remove the cap completely.