Erik Arnold

Thank you! I will take a ride tonight and record it with HPTuners. It's tough to see if there is a jump in the RPM's cause it happens so fast. I'll let you know what I find.

I have a 2002 Chevy Suburban 2500 4X4 8.1L with a 4L85e. As I'm running down the highway it will feel like the transmission goes into neutral for about a 1/4 of a second. It's an intermittent problem so I cant really recreate it, it just happens. On some rides it wont do it at all and on others it will do it several times. It doesnt seem to matter if its summer or winter it'll do it. It does seem to only ever happen after the trans has warmed up. Any help on this would be greatly appreciated