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If I drive my SLS normally it shifts through all gears just fine without any problems. I like to clean it out when I get on the highway and when the coast is clear usually bring it to 100 and then drive the speed limit. The last couple of times I did this it seamed that the engine accelerates but the tranny won't "catch or kick down" The engine can raise as much as 2500 to 3000 rpm before it starts to go. I have checked the codes and have found nothing. The shift solenoids where replaced last spring and I have not had any indication that anything else is wrong. Any ideas where I should start to look would be appreciated.
 

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2005 CTS-V, 1994 Infiniti Q45
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Im assuming that the fluid and filters are fine.......

So what your saying is.... The engine goes up to 3000 rpm, and THEN shifts........ Or is the engine speed rising because it is slipping..... Sort of like revving the engine and then throwing it in gear.... Does it do it any different if you hit the gas realy hard......

Does it do it when its upshifting......?? It sounds like to me that the lockup apparatus (i dont know the techno term for it) does want to unlock......
 
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