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Rush SR Service Manual

    What's Wrong?

    Something not behaving? Start with the symptom. Find what you’re seeing in the list below and follow the link to the section that covers it. Most links land on a specific troubleshooting heading, not just the top of a page.

    By symptom

    Section titled “By symptom”
    SymptomSee
    2 to 1 false neutral1st Gear and the 2→1 False Neutral
    Actuator rodActuator Rod Length and Cylinder Alignment
    Air leakFinding an air leak
    Asymmetric shiftsAsymmetric Shifts: One Direction Weaker · Shifter Cylinder Alignment
    Bench testManual Pneumatic Shift Test
    Bisect faultManual Pneumatic Shift Test
    Blaming the carCheck Driver
    Blip cylinderBlip Cylinder Air Supply (Gen1 cable throttle)
    Bogged corner exit1st Gear and the 2→1 False Neutral
    Brake light failureBrake-light pressure sensor
    Brake lights not workingBrake-light pressure sensor
    Cable throttleBlip Cylinder Air Supply (Gen1 cable throttle)
    Can’t find neutralCan’t Find Neutral with the Engine Running
    Check clutch switchClutch Switch
    Check oil fillOil System Health (RPM-Based)
    Check oil pumpOil System Health (RPM-Based)
    Clutch switchClutch Switch (Gen2 DBW)
    Compressor cycling v3Watching the compressor and tank pressure
    Compressor running constantlyCompressor Issues
    Compressor runs constantly v3Watching the compressor and tank pressure
    Compressor short cyclingCompressor Issues
    Compressor won’t runCompressor Issues
    Cylinder alignmentActuator Rod Length and Cylinder Alignment
    Cylinder misalignedShifter Cylinder Alignment
    Dead paddlesNothing Works: No Shifts, No Compressor
    Dropped shiftMissed or Incomplete Shifts (Both Directions)
    Erratic shiftsGCU Water Intrusion
    False neutral v3Capturing a log
    GCU deadNothing Works: No Shifts, No Compressor
    GCU log pullCapturing a log
    GCU rebootCrash and reboot triage
    GCU resets mid shiftCrash and reboot triage
    GCU waterGCU Water Intrusion
    Gearshift sensor mimicGearshift Sensor Mimic (Gen2 DBW)
    Gen1Blip Cylinder Air Supply (Gen1 cable throttle)
    Gen2Clutch Switch (Gen2 DBW) · Gearshift Sensor Mimic (Gen2 DBW) · Speed Emulator (Gen2 DBW)
    Gss mimicGearshift Sensor Mimic (Gen2 DBW)
    High oil pressureOil Pressure
    High water tempWater Temperature
    Hiss after shiftAsymmetric Shifts: One Direction Weaker
    Hissing tankFinding an air leak
    Intermittent shiftsMissed or Incomplete Shifts (Both Directions)
    Limp modeClutch Switch (Gen2 DBW) · Speed Emulator (Gen2 DBW)
    Low OilP ratioOil System Health (RPM-Based)
    Low oil pressureOil Pressure
    Manual shiftManual Pneumatic Shift Test
    Mechanical bindingShift Arm
    Missed shift v3Capturing a log
    Missed shiftsMissed or Incomplete Shifts (Both Directions)
    Muffled shiftAsymmetric Shifts: One Direction Weaker
    Neutral but no crankCar Won’t Start — Dash Shows N but Engine Won’t Crank
    Neutral with engine onCan’t Find Neutral with the Engine Running
    No blipBlip Cylinder Air Supply (Gen1 cable throttle) · Clutch Switch (Gen2 DBW) · Gearshift Sensor Mimic (Gen2 DBW)
    No compressorNothing Works: No Shifts, No Compressor
    No crankCar Won’t Start — Dash Shows N but Engine Won’t Crank
    No cutGearshift Sensor Mimic (Gen2 DBW)
    No shiftsNothing Works: No Shifts, No Compressor
    Not fast enoughCheck Driver
    OilP sender failedOil System Health (RPM-Based)
    One direction deadOne Paddle Direction Doesn’t Respond
    OverheatingWater Temperature
    Paddle deadOne Paddle Direction Doesn’t Respond
    Pneumatic testManual Pneumatic Shift Test
    Rev limited in neutral1st Gear and the 2→1 False Neutral
    Shift armShift Arm
    Slow lap timesCheck Driver
    Slow pressure lossFinding an air leak
    Speed emulatorSpeed Emulator (Gen2 DBW)
    Stuck clutch switchClutch Switch
    Stuck in neutral on downshift1st Gear and the 2→1 False Neutral
    Throttle cappedSpeed Emulator (Gen2 DBW)
    Very high oil pressureOil Pressure
    Very high water tempWater Temperature
    Water intrusionGCU Water Intrusion
    Weak downshiftAsymmetric Shifts: One Direction Weaker · Shifter Cylinder Alignment
    Weak upshiftAsymmetric Shifts: One Direction Weaker · Shifter Cylinder Alignment
    Won’t startCar Won’t Start — Dash Shows N but Engine Won’t Crank