When starting a car engine, it is normal to hear some noise due to the movement of various mechanical components. I can confirm the rattle on start up is considered normal by subaru for start up The variable valve actuator requires oil to move the position of the camshaft and without oil.
Variable Valve Timing (VVT) Solenoid for Subaru Forester Legacy Impreza
In some cases, a malfunctioning vvt solenoid can contribute to starting problems
The disrupted valve timing can.
I had a previous honda that has a cold start rattle which was due to the vtc actuator not getting enough oil pressure. Andrew markel helps diagnose a customer complaint of a rattle or clunk from the engine when the vehicle is started in. Cold starts, especially in winter A worn or loose serpentine belt
In this video josh explains the 4 most common causes for rough idling as well as a few. During cold startup engine rattles and then goes away because the timing chain is malfunctioning hydraulic. My gf's corolla has started doing the rattle during cold starts more often now I understand it has to do with oil not getting.
The car seems to idle rather high.
2013 2.5i 160,000 miles, recently bought the car That unnerving rattle from your car's engine at startup can turn any smooth drive into a bumpy road of worries Anybody else notice a slight rattling coming from the engine when they start up their outback
