Could changing trans fluid in my 2002 F150 at 80,000 miles cause torque converter shudder...

Asked by Jdig123 Sep 19, 2012 at 02:44 PM about the 2002 Ford F-150 XLT Crew Cab 4WD SB

Question type: Maintenance & Repair

I had my trans fluid purged at 80,000 miles at local garage..The receipt says they added 17.70 quarts of Mercon 5..Now I can't drive vehicle over 50 without trans shifting in and out of lockup...What needs to done to fix this.???

2 Answers
74,270

OJ answered 12 years ago

Check the level of the fluid when hot. If the system is overfilled it will cause the fluid to airate (make bubbles) in the system. The shifting problem you describe can be caused by an over filled system.

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F_O_R answered 9 years ago

Make sure they really used Mercon 5 as most shops like to use a generic fluid rather than the real (and expensive) correct fluid. Make sure the fluid is at the correct level as low fluid level will kill your transmission fast. There are two transmission filters, one for 2wd and one for 4wd. Make sure they used the right one.

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