No Tach in 4th Gear, Bogging Down
I've been having some issues with my truck, when it shifts from 3rd to 4th gear it bogs down bad and I lose the tach completely, it goes to zero and will sometimes bounce back up. It seems to only happen in 4th gear though. it also bogs down really bad and doesnt have much throttle response in 4th gear either but seems alright in the other gears. I was thinking maybe a bad speed sensor or tach sender? Im not sure where the tachometer sender is located or if it is common that these go bad? Any suggestions?
2000 7.3L F-350. 8inch Lift, 38in TSL Radials. 4inch down pipe, 5inch straight pipe. 6637 intake, GTP38r, Banks Big Head wastegate, boost fooler, TS Performance 6 pos chip, built tranny, boost/EGT/tranny temp gauges