This article supersedes TSB 9-9-6 to update the Service Procedure.

ISSUE:

Some 2007-2008 Mustang vehicles equipped with the 4.6L engine and TR3650 5 speed manual transmission may exhibit a clash noise and/or raspy (rough) feel on gear engagements during 1-2 or 2-3 upshifts. This condition may be more pronounced when the transmission is colder than 40 degrees F (4 degrees C).

ACTION:

Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

A lack of shift effort may cause gear clash when shifting a manual transmission. Increased shift effort in colder temperatures is a normal characteristic.

1. Inspect clutch pedal for full travel. Verify that the floor mat is properly secured to the carpet hook.
   1. Clutch pedal does not have full travel - Do not continue with this procedure if the floor mat is not properly secured, positioned, or other obstructions are present.
   2. Clutch pedal does have full travel - If no conditions are present proceed to Step 2.

      NOTE:

      FULL CLUTCH PEDAL TRAVEL IS REQUIRED TO RELEASE THE CLUTCH AND ALLOW PROPER SHIFTING OF THE TRANSMISSION.

2. Remove the transmission following Workshop Manual (WSM), Section 308-03B.
3. Only replace the synchronizer that exhibits the shift concern. Follow WSM, Section 308-03B to replace the 1-2 and/or 3-4 synchronizer assembly and blocking rings as required.
4. Install the transmission following WSM, Section 308-03B.

WARRANTY STATUS:

Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.

DEALER CODING