3.4L LNJ Engine - Misfire DTC P0300 - kw cold driveability GMT191 idle mechanical MIL noise P0301 P0302 P0303 P0304 P0305 P0306 rattle rockerarm rough tick torque,

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

A misfire with MIL\DTC P0300, low cylinder compression and possibly valvetrain noise. Primarily you will find cylinder #6 rockerarm assembles loose, but all rockerarm assembles should be checked for proper torque.

The torque spec for the rockerarm assembles is: First Pass = 19 Nm (14 lb ft), Second pass = 30 degrees.

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Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.

(05 Chevrolet Equinox)

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