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Old Mar 18, 2010 | 11:20 PM
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RobbyMartin
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Tapping noise from tranny

I have an '02 F150 Screw that had a 4.6 and I swapped it to an '03 5.4. Ever since the install my tranny has been making a tapping noise when I put it in gear and even sometimes when I rev it up in park. Any ideas what it could be? ..

The tranny is a 4r70w and the engine is from the Windsor plant.
 
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Old Mar 18, 2010 | 11:55 PM
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stuart1
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tapping noise

Is it sending morse code by any chance?


It could be the convertor bolts hitting the cover or a cracked flex plate.
 
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Old Mar 19, 2010 | 08:53 AM
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Originally Posted by stuart1
Is it sending morse code by any chance?


It could be the convertor bolts hitting the cover or a cracked flex plate.
As a matter of fact, it is sending morse code. It's saying, "Get this fixed, stupid."

How do I check these bolts? I know very little about transmissions.
 
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Old Mar 19, 2010 | 10:09 AM
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There's an inspection cover in front of the transmission that can be removed so you should be able to have a looksee.
There may be evidence of bolts rubbing against the cover.
 
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Old Mar 19, 2010 | 02:08 PM
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Originally Posted by stuart1
There's an inspection cover in front of the transmission that can be removed so you should be able to have a looksee.
There may be evidence of bolts rubbing against the cover.
I removed the inspection plate on the tranny and a round grommet on the block and couldn't see any obvious damage to the flexplate and I couldn't see any bolts to inspect for tightness. Did I check all the right places for loose bolts?
 
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