2002 chevy Trailblazer.
Dear JK. I have a customer with a code p0016 and ai am not too familiar with the adjustable
cam timing on this 4.2l engine. Would appreciate some help. Thanks.
JK:
A common cause for code p014 or p016 on Trailblazers and GMC Envoy is the
"Exhaust Cam Actuator Control Solenoid'. They fail internally, or they leak oil into the
connector cavity. It is mounted to the front pass. side of the cylinder head near the power
steering pump. When it fails, it can also give 'Crank sensor codes'. After replacement, a
'Crank sensor variation re-learn' procedure must be performed.
Have also had a FEW of the Cam Actuators fail, but not many. The actuator is part of the
exhaust cam timing gear and the front timing upper cover will have to come off. Would
suggest an experienced technician for this.
Back
Dear JK. I have a customer with a code p0016 and ai am not too familiar with the adjustable
cam timing on this 4.2l engine. Would appreciate some help. Thanks.
JK:
A common cause for code p014 or p016 on Trailblazers and GMC Envoy is the
"Exhaust Cam Actuator Control Solenoid'. They fail internally, or they leak oil into the
connector cavity. It is mounted to the front pass. side of the cylinder head near the power
steering pump. When it fails, it can also give 'Crank sensor codes'. After replacement, a
'Crank sensor variation re-learn' procedure must be performed.
Have also had a FEW of the Cam Actuators fail, but not many. The actuator is part of the
exhaust cam timing gear and the front timing upper cover will have to come off. Would
suggest an experienced technician for this.
Back
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