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Discussion Starter #1
My 07 commander 4.7 shifts irraticaly on hyway going about 65 70 mph. It downshifts then upshift and repeats irratically. The fluid is full, clean and doesnt smell burnt. What will caise this...shift solenoid or controller or valve or something maybe. I am a certified diesel tech and can do the work myself if i knew wtf to change. No cel or any other light on dash ever display.
 

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Discussion Starter #2
Also it does it in cruise or manual. Dont matter. Its not compensating for a hill cause it does it on flat highway. Never stalls. Shifts okay in town....sometimes seems to shift too soon in town but ill manually drop it a gear if i have too. Its only on the interstate and she hits 3k rpm then 2......then 3 again then 2.....then maybe hang in between a second the downshift and then upsift. Pisses me off.
 
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