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.
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HOMESERVICE MANUALSPLYMOUTH1985CONQUEST L4-2555CC 2.6L SOHC TURBOREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTEMISSION CONTROL SYSTEMSEMISSIONS MAINTENANCE LIGHTSERVICE AND REPAIR
1985 Plymouth Conquest L4-2555cc 2.6L SOHC Turbo
Emissions Maintenance Light: Service and Repair
1985 Plymouth Conquest L4-2555cc 2.6L SOHC TurboSECTION Service and Repair
Fig. 11 Resetting EGR maintenance reminder lamp:
On some carbureted models, an EGR warning light on the dash will become illuminated at 50,000 miles to alert the driver to have EGR system inspected and/or serviced.
Following inspection and performance of any needed maintenance, reset mileage sensor. Reset switch is located on the back of instrument panel either to the left of or below speedometer cable junction, Fig. 11. Slide switch to the opposite position to reset sensor lamp.
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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.