DEFINITION: A clunk is heard and/or felt on acceleration or deceleration.

Inspect the engine mounts for looseness or damage. Refer to Engine Mount Inspection .

Are the engine mounts loose or damaged?

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Go to Step 2

Go to Step 3

1. Tighten the engine mounts to specifications. Refer to Fastener Tightening Specifications in Engine Mechanical - 5.7L.
2. Replace the engine mounts. Refer to Engine Mount Replacement in Engine Mechanical - 5.7L.

Is the clunk still heard/felt?

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Go to Step 5

System OK

1. Remove the transmission. Refer to Transmission Replacement .
2. Inspect the clutch driven plate hub for wear or damage.

Is the clutch driven plate worn or damaged?

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Go to Step 4

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1. Replace the clutch driven plate. Refer to Clutch Pressure Plate and Clutch Driven Plate in Clutch.
2. Install the transmission. Refer to Transmission Replacement .

Is the clunk still heard/felt?

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System OK

Inspect he universal joints for wear or damage.

Are the universal joints worn or damaged?

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Go to Step 6

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Replace the universal joints. Refer to Universal Joint and Slip Yoke Replacement in Propeller Shaft.

Is the clunk still heard/felt?

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System OK