system Archives - UnderhoodService
Diagnosing An Intermittent, Poor-Run, Hard-Start Complaint That Stumped The Local Body Shop

This month we’re going to be looking at an intermittent poor-run, hard-start complaint on a 2012 Hyundai Sonata. This car came to us by way of a body shop with which we work closely. Like most good working relationships, we are always willing to help these guys with our expertise, and they are wonderful about

2013 Hyundai Sonata
Non-Invasive Methods To Remove Gaskets And Clean Surfaces

When removing old gaskets, there are two things to avoid. First, you want to avoid any of the material from entering the engine. Second, you do not want to damage the sealing surfaces. On modern engines with aluminum castings, a metal scrapper can do a lot of damage.

Scored gasket journals
Danger, Will Robinson! Intermittent Loss Of Power

This month’s Diagnostic Dilemma turns the page back to September 10, 2015 when I got a phone call from a local undercar shop inquiring if I had the tools to check the ECM connector pin fit on a 2012 Chevrolet Impala with the flex-fuel, 3.6L gasoline direct fuel injection engine. In response to an intermittent loss of power complaint, the shop had found a technical service bulletin (TSB) indicating that loose PCM connections can cause a loss of fuel pressure on the GDI engine’s high-pressure fuel rail and set codes P00C6 and P228C.

Three lobe cam for fuel pump