Water Leak Tests

When the conditions causing a water leak have been determined, simulate the conditions as closely as possible.

• If a leak occurs with the vehicle parked in a steady light rain, flood the leak area with an open-ended garden hose.
• If a leak occurs while driving at highway speeds in a steady rain, test the leak area with a reasonable velocity stream or fan spray of water. Direct the spray in a direction comparable to actual conditions.
• If a leak occurs when the vehicle is parked on an incline, hoist the end or side of the vehicle to simulate this condition. This method can be used when the leak occurs when the vehicle accelerates, stops or turns. If the leak occurs on acceleration, hoist the front of the vehicle. If the leak occurs when braking, hoist the back of the vehicle. If the leak occurs on left turns, hoist the left side of the vehicle. If the leak occurs on right turns, hoist the right side of the vehicle. For hoisting recommendations, refer to HOISTING, STANDARD PROCEDURE .