Diagnostic Aids
All manual transmissions have gear play that might cause a clunk. If the transmission is suspected of causing the clunk, compare it with a similar vehicle. An internal clunk in the transmission is usually caused by wear between 2 components, or from improper assembly, which would also cause other symptoms.
Step | Action | Yes | No |
|---|---|---|---|
DEFINITION: A clunk is heard and/or felt on acceleration or deceleration. | |||
1 | Did you review the Symptoms - Manual Transmission, and perform the necessary inspections? | Go to Step 2 | |
2 | Inspect the engine mounts for being loose or damaged. Refer to Engine Mount Inspection in Engine Mechanical - 2.6L and 3.2L. Did you find and repair the condition? | Go to Step 8 | Go to Step 3 |
3 | Inspect the transmission mounts for being loose or damaged. Refer to Transmission Mount Replacement . Did you find and repair the condition? | Go to Step 8 | Go to Step 4 |
4 | Inspect the transmission to engine fasteners for being loose or missing. Refer to Fastener Tightening Specifications . Did you find and repair the condition? | Go to Step 8 | Go to Step 5 |
5 | Inspect the exhaust hanger mounting bracket on the transmission for being loose or for missing fasteners. Refer to Exhaust Hanger Mounting Bracket Replacement in Engine Exhaust. Did you find and repair the condition? | Go to Step 8 | Go to Step 6 |
6 | Inspect the driveline for causing the clunk. Refer to Diagnostic Starting Point - Propeller Shaft in Propeller Shaft. Did you find and repair the condition? | Go to Step 8 | Go to Step 7 |
7 | Replace the transmission. Refer to Transmission Replacement . Is the replacement complete? | Go to Step 8 | -- |
8 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 1 |
