Harsh Shift or Bump – Hoot-Type Noise – 2015 Lincoln MKC

2.3L ENGINE – HARSH SHIFT/BUMP OR HOOT NOISE DURING TORQUE CONVERTER CLUTCH APPLY – BUILT ON OR BEFORE 9/19/2014

 

LINCOLN:

2015 MKC

 

2015 MKC vehicles equipped with a 2.3L and built on or before 9/19/2014 may exhibit a harsh shift or bump felt after the 2-3 shift 35-40 Km/h (22-25 MPH) or exhibit a hoot-type noise during a light throttle tip-in at approximately 48-56 Km/h (30–35 MPH).

 

SERVICE PROCEDURE

To verify the customer concern of a harsh bump or hoot noise the vehicle must be at operating temp.

1. To evaluate the torque convertor clutch (TCC) for a harsh bump, select the drive (D) shift button, accelerate at a light throttle to achieve the 1-2 and 2-3 shifts (at 2300 RPM). Holding that same accelerator pedal position, observe the TCC apply using the tachometer. An acceptable TCC apply event will be approximately 35-40 Km/h (22-25 MPH) with little to no feel and a slow and steady drop in RPM on the tachometer.
2. Is a harsh shift bump felt after the 2-3 shift as the TCC applied?
   1. Yes – replace the torque convertor.
   2. No – proceed to Step 3.
3. Evaluate the torque convertor clutch (TCC) for a hoot noise. Select the sport (S) shift button and use the manual shift paddles to upshift to 5th gear at 64 Km/h (40 MPH). Remain in S5 and decrease vehicle speed to 56 Km/h (35 MPH) and observe the engine RPM at 1500 RPM. With the torque convertor clutch (TCC) applied, perform a quick light throttle tip-in to evaluate for hoot.
   1. A very small rise in RPM and TCC reapply will immediately occur if the evaluation was valid.
   2. If a downshift occurs or a large RPM increase is observed, then the TCC was not applied before the tip-in and the evaluation was not valid.
4. Was a hoot noise heard during the tip-in?
   1. Yes – replace the torque convertor.
   2. No – this procedure does not apply. Refer to WSM for normal diagnosis.

 

EJ7Z-7902-H	Torque Converter
W520203-S442	Nut – Tie Rod End (2 Req)
W716075-S442	Bolt – Ball Joint (2 Req)
W520415-S442	Nut – Ball Joint (2 Req)
W715618-S437	Nut- Torque Converter (4 Req)
W712146-S437	Bolt – Cooler Line (2 Req)
W520102-S442	Nut – Half Shaft (2 Req)
5F9Z-4682-AA	Bolt- AWD Drive Shaft (6 Req)
W520203-S442	Nut – Battery Tray 4 (Req)
CV6Z-4B422-A	Circlip
YS4Z-3N324-AA	Retainer – Half Shaft
EJ7Z-6L612-A	Gasket – Exhaust
CV6Z-9450-D	Gasket – Exhaust
W714265-S442	Nut – Exhaust – (2 Req)
W520103-S403	Nut – Exhaust (2 Req)
9L8Z-1177-C	Seal
9L8Z-1177-A	Seal
CV6Z-3K050-A	Ring
XT-10-QLVC	Motorcraft MERCON LV Automatic Transmission Fluid