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.
1980 Plymouth Champ Custom, Automatic TransFACTORY OEM SERVICE PROCEDURE
ESC Vacuum Transducer Test
- Connect an adjustable timing light or timing probe and tachometer to engine. Start engine and warm to operating temperature. Remove and plug hose at vacuum transducer.
- Connect suitable vacuum pump to vacuum transducer and apply 14 in. Hg vacuum. Raise engine speed to 2000 RPM, wait 1 minute and check timing. Advance specifications should be as specified and are in addition to basic timing. Refer to Distributor Specifications in this section.
- Return engine to curb idle. Turn engine off, remove all test equipment and reconnect vacuum hose to vacuum transducer.
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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