Easy step by step guide on how to repair an automotive engine scraping noises,
this information pertains to most vehicles.
Difficulty Scale: 4 of 10
Begin with the vehicle on flat ground, in park with the emergency brake "ON"
and the engine "OFF".
Step 1 - A bearing style of support pulley is used
to keep tension on the serpentine belt, these bearings can fail causing a scraping
noise which follows the engine speed.