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2008 6.4 transmissions

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Old Dec 14, 2021 | 04:54 PM
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K_Ritt32's Avatar
K_Ritt32
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2008 6.4 transmissions

Im not sure if there's a thread on this already, but I went and test drove a truck. 136,000 miles on it. Its deleted and tuned. First gear it threw me back in my seat, second and third were a little different. When it shifted it was fine until about 2500 rpms. When it got there, it kinda stayed there and almost felt like it was in neutral. Rpms wouldn't go any higher, it shifted into 3rd. Same result. But when it went into 4th the truck started hauling *** again. Any ideas? Solenoids? Bad tranny? Other than that,, the truck was flawless. Any help is much appreciated
 
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Old Dec 14, 2021 | 08:56 PM
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Mark Kovalsky's Avatar
Mark Kovalsky
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If it were going to neutral RPMs would go VERY high VERY quickly. I suspect a problem with the tune, not the transmission.
 
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