1980 Plymouth Horizon Base, Automatic TransFACTORY OEM SERVICE PROCEDURE

Full Electric Choke System: Testing

The heater element can be tested with the ignition "On", or a direct "B+" terminal connection. The choke should reach the open position within five minutes when the vehicle is parked in the service garage.

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.