Unwanted Cruise Or Acceleration

1987 Chevrolet Chevy Van G20, 6.2 C, AutomaticSECTION Unwanted Cruise Or Acceleration

Check for crossed vacuum and vent wires. Check for defective or intermittent turn signal control switch. Inspect for sticking valves in servo. Check for binding throttle linkage. Inspect for grease in speedometer head. Check for floor mat interference. Check for loose retainer on bail of servo. Check for good ground circuit. Ensure that speed sensor is working properly. Check for correct control module application.

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.