redneck_reed78
Full Access Member
- Joined
- Sep 14, 2015
- Posts
- 149
- Reaction score
- 43
- Location
- Spring Valley WI
- First Name
- Braden
- Truck Year
- 1987, 1991
- Truck Model
- R30, Suburban
- Engine Size
- 350
When I am coasting in my 91 suburban, the engine surges, the rpms going up and down from about 1200 to 1400 rpm (I have a tach). The truck doesn't jerk around or anything but something isn't quite right. If I recall it seems to be more apparent in OD. Is this an early sign of the transmission on its way out since it has 226,000 original miles? (Not a transmission guy...) Because otherwise everything works great other than being tired. Or maybe TC because it likes to lock and unlock quite a bit (I think).
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