99 sierra hard shift

Fastnloud5.3

Rustbucket
Jan 22, 2015
73
0
0
Mitten
5.3 1500 4x4 Shifting hard between first and second when warm. past owner had it flushed at 160k like a fucking retard so I'm fearing the worst. Im getting an maf code but no tranny codes. Any ideas?
 
not that it really relates but by old Hyundai sonata had a bad MAF and it shifted really hard so i fee like it is possible that that is the problem.

i would look into it before diving into a trans build.

:up: