by tim curran » Sat Feb 15, 2014 6:19 pm
So my truck like to stay in overdrive. In the last 120k miles I have had my tranny rebuilt twice, done a tps delete kit. And adjusted my shift cables every which way.truck goes down the road good but when I come to a big hill if if I keep a constant throttle my speed will drop to around 30 and I lugging the motor if I floor it my boost will climb upto 35 psi or so. The tranny doesn't down shift it stays. In over drive. It will shift down a gear when it drops to around 25 or so but. It's annoying seems like motor has to work awful hard in overdrive. When I tow it will do this too. Two different trannnys that were adjusted by the shop that rebuilt them and they both act the same way. How do I get this old to down shift and get out of her own way!
1993 w250, 3200 RPM springs, maxed fuel screw, industrial inj. Fuel pin, Dynamite diesel 75 horse inj., ind inj stage 2 pump, 60 lbs valve springs, ARP head studs, Banks ram air intake. 4 inch diamond eye exhaust,16cm turbo housing, 60 mm comp. Housing, BD tourqe converter, billet flex plate, Banks gauges, 212hp 608 tourque, old smokey and worn out.