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 MANUALSDODGE1991SHADOW L4-135 2.2L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTEMISSION CONTROL SYSTEMSEXHAUST GAS RECIRCULATIONSPECIFICATIONSEGR SYSTEM CLEANING
1991 Dodge Shadow L4-135 2.2L SOHC
EGR System Cleaning
1991 Dodge Shadow L4-135 2.2L SOHCSECTION EGR System Cleaning
EGR VALVE CLEANING
Warning: Do not attempt to clean the Back-Pressure EGR system, control valve or transducer. Replace as a unit if necessary.
EGR INTAKE MANIFOLD CLEANING
Note: When cleaning intake manifold EGR passages, care should be taken to ensure that all loose particles are completely removed to prevent them from clogging the EGR valve or from being ingested into the engine.
Remove carbon deposits as follows:
1. Disconnect vacuum hose from EGR valve, then remove EGR valve to intake manifold bolts and valve assembly.
2. Remove deposits from EGR intake manifold ports by hand, using a suitable sharp-edged tool. Caution: Do not use drills or wires to clean control passages in the throttle body, control valve, or the transducer as calibration may be altered and result in poor engine performance.
3. Install EGR control valve and transducer, using a new gasket, and reconnect the vacuum hose.
Note: Do not use solvent to clean the EGR passages as damage to the system may result.
RENDER: 1.0x
NO RELATED
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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.