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SHIFT_Moderator
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Discussion Starter #1
Can anyone tell me what's going on? About 55mph, 4000rpm, WOT.

 

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Tough to tell form the video - what is it doing? Bogging down? ABS/TC kicking in? Shifting too early or too late? Is it only at 55, 4k, WOT?

First thing I'd check if it is shifting poorly is the tranny fluid. Lots of options from there. The service manual has tons of codes and troubleshooting for the tranny. You have to find a way to narrow down the possible problems - a tranny code would help.
 

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If it’s happening only and every time you go WOT, then it’s the fuel pump cutting out. It happened to my previous 04 years ago.
 

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Did the speed barely increase when it downshifted? Might be tranny related (valve body?) or it could be some other issues as other gentlemen have pointed out. Would probably need more info and longer video.
 

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Discussion Starter #6
No codes, only at WOT. I think primoV8 might have it. "fuel pump cutting out"

Thanks for the Replies!
 
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