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 MANUALSCHRYSLER1984LEBARON BASE, 2D CONVERTIBLE, 2.2 CREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMEGR SYSTEMTESTINGEGR SYSTEM OPERATION CHECK2.6L ENGINE
1984 Chrysler LeBaron Base, 2D Convertible, 2.2 C
2.6L Engine
1984 Chrysler LeBaron Base, 2D Convertible, 2.2 CSECTION 2.6L Engine
- Check vacuum hose condition, routing and installation. Start cold engine and run at idle. Increase engine speed to 2500 RPM. Secondary EGR valve should not operate. If secondary EGR valve operates, replace thermo valve.
- Warm engine to at least 150°F (66°C). Accelerate engine to 2500 RPM. Secondary EGR valve should operate. If it does not, inspect EGR valve or thermo valve and replace as necessary.
- Disconnect Green striped hose from nipple on carburetor. Connect vacuum pump to hose, Pull sub-EGR valve by hand and apply 6 in. Hg vacuum.
- If engine idling speed becomes unstable, secondary valve is operating properly. If no change, EGR valve or thermo valve is not operating properly.
- Disconnect vacuum pump. Reconnect Green striped hose to carburetor. Disconnect Yellow striped hose. Apply 6 in. Hg vacuum with hand pump.
- If engine idling speed becomes unstable, primary valve is operating properly. If on change, EGR valve or thermo valve is not operating properly.
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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.