The power distribution center, or fuse block, located under the hood houses most or all of the vehicleâs fuses and relays. It contains a relay for the ECM that is powered up when the ignition key is turned to the on position. This ECM power relay acts as a switch that supplies power to the ECM.
How to Tell When It's Time to Replace Your Water Heater. A water heaterâs lifespan depends on several factors, including water quality, water temperature, and maintenance. As such, lifespans vary anywhere from 8-15 years.
How Do I Calculate Hot Water Heater Replacement Cost? Calculating the replacement of water heaters is easy once you find the right source. For example, you can go to the U.S Department of Energyâs site on energy efficiency and renewable energy and enter information to arrive at a price.