Symptoms of a Bad or Failing ECM-Power Relay. The ECM, or electronic control module, is the computer responsible for controlling all of the engine management functions. It is the central control unit of most vehicles and controls a variety of functions, such as electrical system power distribution, emissions, ignition, and fuel systems.
1 Replace the tire if the top of Abe's head becomes uncovered by any of the grooves.  If your tires are only partially worn, find out how much. Stick a tread-depth gauge (about $5 at auto-parts stores) into each of the grooves on all four tires, as shown in the photo below. Then check how many inches of usable tread remain and match your driving to the tread wear.
One reason is tread depth. Where most all-season tires and summer tires start at 10/32nds or less, most of the Blizzak snow tires start at 12/32nds or more. This helps provide traction in the deep snow. Read Tread Depth: Whyâ¦.