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Jaguar
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1996
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XJS
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/O Codes
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Symptoms
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Rough Or Unstable Idle
Rough Or Unstable Idle
Burnt valve or valve seat.
Fuel system malfunction.
Incorrect valve clearance.
Incorrect valve timing.
Incorrect ignition timing.
Ignition system malfunction.
Sticking valves.