Idle Speed & Mixture: Notes

1968 Oldsmobile Cutlass Base, 4.1L Eng, _NA_, Standard TransSECTION Notes

Engine must be idling at normal operating temperature with choke valve wide open and fast idle tang not contacting fast idle cam. With Auto. Trans, in Drive, Air Conditioner OFF, idle stop solenoid energized (normal running condition), and Idle Compensator Valve closed, adjust each model as directed below.

NOTE: Hot idle compensator valve can be blocked by inserting pencil in passage in air horn
RENDER: 1.0x

NO RELATED

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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.