dodge Workshop Repair Guides

Dodge Caravan FWD V6-201 33L VIN R MFI Workshop Service & Repair Manuals

Broken, Cracked or Chipped Insulator|Page 1422 > < Broken, Cracked or Chipped Insulator|Page 1420
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Spark Plug Overheating

Symptoms:  White or gray center electrode insulator that also appears blistered. The increase in electrode gap will be considerably in excess of
0.001 in per 1000 miles of operation.

Possible Causes:
-

Plug(s) with wrong heat range. 

-

Over advanced ignition timing. 

-

Detonation

-

Cooling system malfunction

-

Check for lean air-fuel mixture

-

Check the torque value of the plugs to ensure good plug-engine seat contact

Broken, Cracked or Chipped Insulator|Page 1422 > < Broken, Cracked or Chipped Insulator|Page 1420