Cruise Control Servo Cable: Adjustments

1987 Pontiac Firebird V8-350 5.7LSECTION Adjustments

1985---88
CRUISE RELEASE SWITCHES, ADJUST
Grand Prix & Safari
1. With brake pedal fully depressed, insert valve into retainer until valve seats fully.
2. Pull brake pedal rearward against pedal stop until clicking sounds are no longer heard.
3. Release brake pedal, then repeat step 2 and ensure clicking is not present.
SERVO ROD, ADJUST
Adjust length of rod to minimum slack with carburetor lever on slow idle screw and engine not running. Ensure idle load control is fully retracted when retainer is installed. SERVO CABLE, ADJUST
1. With cable connected to vacuum servo, pull servo end of cable assembly toward servo without moving lever.
2. If one of the holes in servo tab aligns with cable pin, connect pin to tab with retainer.
3. If none of the holes in servo tab aligns with cable pin, move cable away from servo until next closest hole aligns, then connect pin to tab with retainer. Do not stretch cable to make adjustment, as the engine will not be able to return to idle.




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:

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