Vehicle Speed Sensor (VSS)

1987 Pontiac Firebird Formula, 5.0 H, AutomaticSECTION Vehicle Speed Sensor (VSS)

Contains the TCC apply and regulator valves. Apply valve determines method of fluid feed to torque converter assembly in order to enable or disable clutch mechanism.



This sensor sends vehicle speed information to ECM. Vehicle speed must be above a certain value before TCC can be applied. This sensor is located in instrument cluster, behind speedometer.

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.