Jeep Cherokee (XJ): 4.0L engine

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Engine DESCRIPTION The 4.0 Liter (242 CID) six-cylinder engine is an In-line, lightweight, overhead valve engine. This engine is designed for unleaded fuel. The engine cylinder head has dual que ...

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Diagnosis and testing
EXHAUST SYSTEM EXHAUST SYSTEM DIAGNOSIS CHART CONDITION POSSIBLE CAUSE CORRECTION EXCESSIVE EXHAUST NOISE OR LEAKING EXHAUST GASES Leaks at pipe joints.  Rusted or blown out muffler.  Broken or rusted out exhaust pipe. &n ...