A/T 6F35- Hoot Noise On Low Speed Acceleration
TSB 11-7-2307/22/11
6F35 TRANSMISSION - HOOT TYPE NOISE AT LOW
SPEED - ON LIGHT ACCELERATION FROM A STOP
BEFORE THE FIRST SHIFT
FORD:
2009-2011 Escape
MERCURY:
2009-2011 Mariner
This article supersedes TSB 10-20-1 to update the production fix date, model years covered, Part List, Service Procedure and Service Labor Time Standards.
ISSUE
Some 2009-2011 Escape and Mariner vehicles equipped with a 6F35 automatic transmission may exhibit a single hoot noise on light acceleration from a stop just before the 1-2 shift. This noise will not occur any other time and will not occur under heavy acceleration. On four wheel drive (4WD) vehicles, the noise may be heard at the rear axle due to noise transfer through the rear differential unit (RDU). This is a normal characteristic of the vehicle and does not affect transmission function and/or 4WD function or durability. A transaxle chain snubber is available to reduce this noise and is incorporated with the fluid reservoir.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
NOTE
A SLIGHT NOISE WHILE ACCELERATING FROM A STOP MAY BE A NORMAL CHARACTERISTIC.
Installing Transmission Chain Snubber:
1. Drain fluid and remove the transaxle, following Workshop Manual (WSM), Section 307-01.
2. Install the holding fixture 307-625.
3. Using the holding fixture 307-625, install the transaxle on a bench-mounted holding fixture.
4. Remove the torque converter retainer 307-566.
5. Install the torque converter handle 307-091.
6. Using torque converter handle 307-091, remove the torque converter from the transaxle.
a. The torque converter is heavy. Be careful not to drop it or damage will result.
7. Note the location of the stud bolts for assembly and remove the 17 torque converter housing bolts.
8. Using a suitable tool, pry the torque converter housing loose from the transaxle case.
9. Remove the torque converter housing loose from the transaxle case.
10. Remove the number 15 differential thrust bearing.
11. Remove the differential.
12. Remove the differential planetary sun gear.
13. Remove the number 13 thrust washer.
14. Remove the number 11 drive sprocket thrust bearing.
15. Lift the driven sprocket up first then simultaneously remove the drive and driven sprockets and the chain.
16. Remove two (2) bolts, the fluid reservoir hold-down bracket and fluid reservoir. (Figure 1)
17. Discard fluid reservoir and hold-down bracket. (Figure 2).
18. Install new fluid reservoir/chain snubber and position the alignment pin in the alignment hole. Reinstall the two (2) bolts in the fluid baffle and install the two (2) bolts from the kit in the new fluid reservoir/chain snubber. Torque to 12 N.m (106 lb-in). (Figure 3)
19. Install the number 10 thrust bearing.
20. Install the number 12 thrust bearing.
21. Simultaneously install the original drive/driven sprocket and original chain assembly by first seating the drive sprocket then seat the driven sprocket, Lightly tap on the driven sprocket to be sure it is fully seated in the case.
22. Install the number 11 thrust bearing.
23. Install the number 13 thrust washer.
24. Install the final drive sun gear.
25. Install the differential assembly.
26. Install the number 15 thrust bearing.
27. Install the turbine shaft seal protector 307-635 on the input shaft.
28. Clean the silicone off torque converter housing and transmission case sealing surface.
29. Apply Motorcraft(R) Ultra Silicone Sealant to the sealing surface of the transaxle case.
a. Be sure the sealing surfaces of the torque converter housing and the transaxle housing are free of oil before applying Motorcraft� Ultra Silicone Sealant.
30. Install the torque converter housing on the transaxle case and install the 17 bolts. Tighten to 24 N.m (18 lb-ft.).
a. Be sure the stud bolt is in the correct location as noted during disassembly.
31. Remove the turbine shaft seal protector 307-635.
32. Using the torque converter handle 307-091, install the torque converter.
33. Remove the torque converter handle 307-091.
34. Install the torque converter retainer 307-566.
35. Remove the transaxle from the bench-mounted holding fixture.
36. Remove the holding fixture 307-625.
37. Install transaxle and refill transaxle fluid following WSM, Section 307-01.
38. To correctly set and check the transmission fluid level monitor the transmission fluid temperature (TFT) Parameter Identification (PID) using Integrated Diagnostic System (IDS) / Portable Diagnostic Software (PDS) scan tool. Correct fluid level will read in the cross hatch area of the dipstick at normal operating temperature 85-93 °C (185-200 °F).
Parts Block
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.
OPERATION DESCRIPTION TIME
110723A 2009-2011 Escape, 5.4 Hrs. Mariner 4X2 2.5L: Install The New Fluid Reservoir/Chain Snubber (Do Not Use With Any Other Labor Operations)
110723A 2009-2011 Escape, 5.8 Hrs.
Mariner 4X2 3.0L: Install
The New Fluid
Reservoir/Chain Snubber
(Do Not Use With Any
Other Labor Operations)
110723B 2009-2011 Escape, 6.0 Hrs.
Mariner 4X4 2.5L: Install
The New Fluid
Reservoir/Chain Snubber
(Do Not Use With Any
Other Labor Operations)
110723B 2009-2011 Escape, 6.5 Hrs.
Mariner 4X4 3.0L: Install
The New Fluid
Reservoir/Chain Snubber
(Do Not Use With Any
Other Labor Operations)
DEALER CODING
CONDITION
BASIC PART NO. CODE
7G249 33
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