1997 Lexus SC 300 AutomaticFACTORY OEM SERVICE PROCEDURE

Throttle Controls: Dashpot

Shift transmission into Neutral. Run engine at operating temperature. Ensure idle speed is 650-750 RPM. Push dashpot rod all the way with a screwdriver and verify engine speed. If engine speed is not as specified, turn dashpot adjusting screw as necessary. See DASHPOT RPM SPECIFICATIONSΒ  table.

DASHPOT RPM SPECIFICATIONS

Application RPM
A/T 1400-2200
M/T 2200-3000
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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