I have a 2005 f150 with the 5.4. i noticed a clunk and a hard jerk sometimes when my tranny downshifts. I notice this more when it downshifts going up a hill more than on the flat road. and it also feels like the tranny is slipping a little too. anyone have this problem? i dont want to have to replace my tranny yet!!

 

how many miles? Have you ever changed fluid?

 

60,000 miles and not sure if it was changed but when i checked the fluid it looked like new not burnt smelling or nothing

 

TSB
05-10-12 HARSH 3-2 DOWNSHIFT BETWEEN 17-25 MPH (27-40 KM/H) - NO DTCS - 4R75E AUTOMATIC TRANSMISSION - VEHICLES BUILT BEFORE 4/20/2005

Publication Date: May 13, 2005

FORD: 2005 F-150
LINCOLN: 2006 Mark LT


ISSUE:
Some 2005 F-150 and 2006 Mark LT vehicles built before 4/20/2005, equipped with the 5.4L engine and 4R75E automatic transmission, may exhibit a harsh 3-2 downshift between 17-25 MPH (27-40 Km/h) with no diagnostic trouble code (DTC), and a driveline clunk between 40-50 MPH (64-80 Km/h).

ACTION:
Reprogram the powertrain control module (PCM) to the latest calibration using WDS release B37.4 or higher. Calibration files may also be obtained at www.motorcraft.com.


WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage

OPERATION DESCRIPTION TIME
051012A 2005 F-150, 2006 Mark LT, All Equipped With 4R75E Transmission: Check Diagnostic Trouble Codes And Reprogram The Powertrain Control Module (Do Not Use With 12650D, 12650D84) 0.4 Hr.

 

cool man thanks ill call them tomorrow ad see when i can get this done