by Peter F Meier | Aug 7, 2025
When a Voltmeter Isn’t Enough (Video) Description With the variety of electronically controlled systems on a modern automobile, the days when a test light or simple voltmeter was enough to diagnose problems are long gone. Using a digital storage oscilloscope (DSO) can...
by Peter F Meier | Jul 31, 2025
DTCs (Diagnostic Trouble Codes) P0420 and P0430 are generic industry codes and part of the OBD-II standards. The descriptor labels the code(s) “Catalytic Converter Efficiency Below Threshold – Bank 1 (or 2)”. And the number one part sold to repair this problem is a...
by Andy Greaser | Jul 24, 2025
Looking for an easy way to win over your customers that they’ll enjoy every time they drive? Look at their vehicles from a hypermiler’s perspective. In case you haven’t heard the term before, the hypermiling community is obsessed with optimizing their vehicles’ fuel...
by Shop Press Staff | Jul 22, 2025
Are You Properly Checking Hub Bearings For Wear? (VIDEO) Description The old “grab the wheel and shake” test you may have used for tapered bearings doesn’t apply for the hub bearings found on most of today’s vehicles. Pete Meier explains how a dial indicator is...
by Peter F Meier | Jul 1, 2025
Dead Battery? (Video) Description With dozens of electronic control units on automobiles built in the last 25 years, incidents of battery drain caused by an ECU that will not turn off when it is supposed to are on the rise. Tracing the ultimate cause can be made...
by Peter F Meier | Jun 26, 2025
Diagnosing an illuminated check engine light (CEL) is something professional technicians do on an everyday basis. The key to a correct diagnosis is following a logical diagnostic process and gathering the information you need to isolate and repair the cause. The...