2001 Transmission Problem

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Dec 30, 2007 | 12:18 AM

ryan_fordguy

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From: Napoleon Ohio

2001 Transmission Problem

I have a 2001 5.4 4x4 F-150 with about 70,000 miles. For awhile now right when it hits 2nd gear it will make a loud grinding noise and vibrate in the pedals alot! also shifting down into 1st idle dip down to about 2-300rpm....this does not happen all the time. my local dealer said something about a shudder that might be getting stuck or my idea is torque converter?! Any other ideas?? also dosent happen in any other gears and if i am stopped and shift manually into 2nd it will idle jump 500-1200 rpm and then stall!!! please help if you have any info!!

Thanks alot

Dec 30, 2007 | 01:02 PM

LxMan1

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Joined: Dec 2001

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From: Louisville,Ky.

Well, the torque converter clutch doesn't lock until 40mpg in 3rd or 4th gear, so that is out.
I would suggest getting the fluid power flushed. Sounds like some solenoids may be sticking in the valvebody.

Dec 30, 2007 | 01:10 PM

ryan_fordguy

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From: Napoleon Ohio

i actually got my fluid flushed right away when i noticed the problem, sorry i should have said that...that was about 53,000 miles when i did that.

Dec 30, 2007 | 02:13 PM

rsylvstr

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Joined: Dec 2006

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From: Central NY

anything on this page help you?

https://www.ford-trucks.com/tsb/full...y=2001&m=F-150

or this TSB?

https://www.ford-trucks.com/tsb/full...php?tsb=04-1-6

Dec 31, 2007 | 11:12 AM

ryan_fordguy

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From: Napoleon Ohio

yes thanks rsylvstr that did help alot got it down too wht you sent me or codes PO781 AND P0755 ABD P0756 if your familiar with codes but thanks alot!