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Home >> Lexus >> 1995 >> ES 300 >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (Engine Controls - System/Component Tests) >> Throttle Controls >> Dashpot
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Throttle Controls: Dashpot

WARNING: This page is about a different car, the 1995 Lexus LS 400. However, it is still accessible from the selected car via links, so may be relevant.
  1. Run engine at operating temperature. Ensure idle speed is 650-750 RPM. See CONNECTING TACHOMETER  under INTRODUCTION. Turn off engine. Remove cap, filter and separator from end of dashpot. Start engine. Increase engine speed to 2500 RPM. Ensure cooling fan is not running.
  2. Fully extend dashpot rod by using finger to cover hole inside area where separator was installed in dashpot. Release throttle. If engine speed is not 1500 RPM, turn dashpot adjusting screw as necessary. Installing separator, filter (coarse side up) and cap.
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