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ON-VEHICLE SERVICE TSB Revision ENGINE MECHANICAL <3.8L ENGINE> 11C-11 3. Disconnect the crankshaft position sensor connector. NOTE: Doing this will prevent the engine control module WARNING Keep your distance from the spark plug hole when 4. Cover the spark plug hole with a shop towel etc., during cranking. After the engine has been cranked, check for 5. Set compression gauge to one of the spark plug holes. measure the compression pressure. Standard value (at engine speed of 200 r/min): 1,550 7. Measure the compression pressure for all the cylinders, and check that the pressure differences of the cylinders are Limit: 98 kPa (14 psi) 8. If there is a cylinder with compression or a compression difference that is outside the limit, pour a small amount of (1) If the compression increases after oil is added, the cause of the malfunction is a worn or damaged piston ring (2) If the compression does not rise after oil is added, the cause is a burnt or defective valve seat, or pressure is 9. Connect the crankshaft position sensor connector. NOTE: This will erase the diagnostic trouble code resulting AK303010 CRANKSHAFT AB AKX00436 COMPRESSION AB |