download
Some 2005-2006 Freestyle/Five Hundred/Montego vehicles equipped with a continuously variable transaxle (CVT) may exhibit noise under various driving conditions. ACTION Use the following Service Procedure to identify and repair specific CVT transmission noises. SERVICE PROCEDURE It is important to understand normal operating characteristics of the CVT, what type, location, and speeds of noise. NOTE DO NOT ATTEMPT REPAIR IF THE NOISE IS COMPARABLE TO A SIMILARLY EQUIPPED VEHICLE. 1. For whine/thump/knock noise in park or neutral, go to Possible Cause Step 1. 2. For tick noise on deceleration from 20 MPH (32 Km/h) to a stop, go to Possible Cause Step 2. 3. For whine noise on deceleration, go to Possible Cause Step 3. 4. For other noise concerns, refer to Other Concerns: Noise/Vibration – Forward or Reverse in Workshop Manual, Section 307-01A for a complete list of possible noise sources. Possible Cause 1. Whine/thump/knock in park and neutral with engine running that goes away when vehicle is put into drive. Noise may come back when vehicle starts to move. This may be caused by machining of the input shaft or flat spots on the roller bearing. For diagnosis first use chassis ears to pinpoint the noise to transaxle area. If the noise is from the transaxle, monitor Turbine Shaft Speed (TSS_SRC) PID using scan tool. If the noise goes away as TSS_SRC goes to