Other information:
Overview
The
electric booster heater, if equipped, is used to heat the passenger
compartment during low ambient temperatures when the heater core cannot
provide sufficient heat due to low engine coolant temperatures. Once the
engine coolant reaches a sufficient temperature to heat the passenger
compartment, the climate control system stops using the electric booster
heater...
Valve Train Analysis - Engine Off, Valve Cover Removed
NOTE:
The following component inspections are used to diagnose valve train concerns.
Check for damaged or severely worn parts and correct assembly.
Valve Train Analysis - Camshaft Lobe Lift
Remove the spark plugs...