Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Electric Assist Choke: Operation
The choke thermostatic coil spring reacts to engine temperature; however, an electric heating element (located next to a bimetal spring inside the choke well) will assist engine heat during both summer and winter operations to shorten choke on time.
This single-stage electric assist choke is designed to give a more rapid choke opening at temperatures above about 60°F, and slower choke opening below this temperature.
A wire from the choke heater is connected to an electrical control switch. Above 60°F, the control switch will energize the choke heater.
Since the heater control switch is mounted to the engine, some cold weather operation may energize the choke heater. This could occur after the choke has opened without benefit of electric heat. No adverse reaction will occur.
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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.