1966 Chevrolet Impala Base, 4D Hardtop, 6.5L Eng, Not Available TransFACTORY OEM SERVICE PROCEDURE

2-Bulb Temperature: Description

The unit consists of one red and one green (or blue) indicator light in instrument cluster and a thermal unit at rear of engine (usually the left hand cylinder head). The thermal unit contains a bi-metal strip which is actuated between two terminals within the unit. The thermal unit has three basic positions: Cold, Normal, Hot.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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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.

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