P PhilJ New member Mar 20, 2009 #1 The 4.3 engine knocks when I start it in the morning. The knock goes away after about 10 or 15 seconds. When I turn off the motor and restart it after driving there isn't a knock, it's only in the morning after it has sat all night.
The 4.3 engine knocks when I start it in the morning. The knock goes away after about 10 or 15 seconds. When I turn off the motor and restart it after driving there isn't a knock, it's only in the morning after it has sat all night.
S SlowWRX New member Mar 20, 2009 #2 Not sure could be pistons or the rings. Hey if it drives fuck it,