1993 Ford Thunderbird 1993 3.8 T bird stuck on vac

SUPERCHARGER Supercharger Noisy à   Air or vacuum leaks. Check hoses, tubes and flange joints for leaks. à   Exhaust leaks. Check rubber tube to EGR valve for looseness and damage. à   By-pass actuator not opening. Check by-pass vacuum tube for damage, restriction and incorrect routing. Check valve and actuator rod for restriction. Ensure actuator rod rests against lever stop when vacuum is less than 3 in. Hg. Actuator rod should be fully open (horizontal) when vacuum is greater than 8 in. Hg. à   Low supercharger oil level. Replace supercharger if no oil is present. à   Contaminated supercharger. Remove outlet adapter. Inspect rotors for foreign objects. Replace supercharger if rotors are damaged. à   Gear rattle is normal and does not affect performance. Excessive gear rattle can be caused by actuator valve not opening. à   Chirping is normal and does not affect performance. Excessive chirping can be caused by actuator valve not opening. Low Boost à   Air or vacuum leaks. Check hoses, tubes and flange joints for leaks. à   Restricted air inlet. Check air filter and air induction system. à   Supercharger not rotating. Check drive belt. Remove outlet adapter. Inspect rotors for damage and seizure. Replace supercharger if rotors are damaged. à   By-pass actuator not closing. Check valve and actuator rod for restriction. Ensure actuator rod rests against lever stop when vacuum is less than 3 in. Hg. à   Insufficient flow from supercharger. Remove outlet adapter. Ensure rotors turn when pulleys are rotated. Replace supercharger if rotors do not turn. High Boost à   Check for plugged exhaust system. à   Check for plugged intercooler tubes. à   Check for correct supercharger pulleys. Oil Leakage à   Some oil seepage may occur with mileage. Ensure PCV system is not restricted. Ensure oil fill plug is tight. Check oil level, and top off as necessary. If oil loss is excessive, replace supercharger. NOTE: Supercharger cannot be overhauled. If supercharger malfunctions, replace entire supercharger assembly.