Hey, i have a 05 vz sv6. Bought it off a priv dealer andd:

• In the mornings, when i start my car, it always roars then makes this loud cracklin sound. This stops after 3 seconds.
• But if ive been driving the car around then turn off the engine and turn it back on again it doesnt crackle.
• If i drive to work then park my car for the day which gives it 8hours to rest then start the car for the cruise home it crackles?
Seems to me whenever the engine is cooled down it crackles when starting up.
Also my car doesnt crackle when driving.

Whyyyyyy is this???