The digital version of the September issue of Underhood Service is available on-line.
CLICK HERE to access the easy-to-view digital version that features articles on Toyota Charging System Diagnostics, 2003 Toyota Highlander Heater Circuit Malfunction, GMC/Chevy Light Truck Central Port Fuel Injection Diagnosis, All-Time Worst Spark Plug R&Rs, Head Gasket Repair, Wiring Repair, Evaporative Emissions Diagnostics, a host of Tech Tips, and more!