Category : Manuals

  • Rough Idle Remedies for 4.2L FI Engines

    Posted 06/04/2013 By in Manuals With | No Comments

    If you have played around with the 4.2L FI engines fitted into the XJ sedans in recent years, you’ve probably noticed that it is very, very difficult to achieve a smooth idle in these engines, regardless of how well the engine runs in off-idle conditions. There doesn’t seem to be a magic bullet to suggest …

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