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Two trucks one problem

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Old Dec 26, 2008 | 03:17 PM
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Two trucks one problem

I have an '02 F150 2x4 with the 4.2 V6 and a 99 Expedition 4x2 with the 4.6 V8. Both trucks have a shudder that I believe is related to the torque converter clutch, they both miss and pop although the 02 is worse, especially under acceleration. If I ride the brake pedal lightly the shuddering stops, if I tromp the gas and therefore up the RPM's the problem stops.

Is there a way to cut a wire and disable the TC clutch? I don't have a bunch of money to replace the TC in either of these, much less both. If the TC clutch continues to be a problem can it toast the TC and thereby toast the transmissions?

I've had fun searching the sight looking for the answer even though I couldn't find it. Thanks in advance for your help!
 
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Old Dec 26, 2008 | 05:29 PM
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If they miss and pop your torque converter has nothing to do with that. You're having a plug/COP/etc problem. IF you're getting torque converter shudder check this post out.
https://www.ford-trucks.com/forums/4...out-of-me.html
 
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Old Dec 26, 2008 | 05:49 PM
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I replaced the plugs, wires and coil pack in my 02 and it made no difference.
 
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Old Dec 26, 2008 | 05:54 PM
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Give the friction modifier a shot .............. you have nothing to lose! Buy the FORD brand, think it was about $9 retail last I checked.
 
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Old Dec 26, 2008 | 10:41 PM
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Will do, thanks!
 
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