Banks Power Ford Trucks: (Diesel ’83 - 93 6.9 & 7.3L) Forced Induction- Sidewinder turbo system (Van) 6.9 & 7.3L - Manual (Page 23)

tuRBO dIeseL tROuBLe sHOOtIng cHaRt
sYMptOM cause ReMedY
Low boost, poor performance, Restricted exhaust system eliminate restrictions, modify pipe
sometimes with high egt layout for better flow
muffler too small Install recommended muffler
Lack of boost or low boost, Intake system leaks Locate and seal leaks; (check seal
poor performance between pressure chamber and
intake manifold)
exhaust system leaks ahead Listen for leaks, repair as necessary
of turbocharger exhaust inlet
Broken turbocharger blades Rebuild turbocharger, eliminate
caused by foreign objects means of foreign objects entry
entering intake or exhaust system
pyrometer not working check that wires are not reversed Revise Wires
poor connections clean and secure connections
Wiring connections shorted Insulate connections
together
gradual loss of performance, clogged (or partially clogged) Replace fuel filter(s)
and possibly boost fuel filter
(“flatten out” at higher RpM)
23 P.N. 96308 V.2.0