Compressor Oil for R1234yf
Working on R-1234yf systems is not that different from the R-134a variety.
Aftermarket Artificial Intelligence
Like it or not, you are part of the aftermarket AI engine.
ECM Damage
Engineers have devised two strategies that can be called the “immune system” for the electrical system.
Cabin Air Filters
Don’t overlook the importance of the cabin air filter in your customers’ vehicles.
CAN Bus Communications
There are three types of bus configurations that you will come in contact with — loop, star and a hybrid of both.
PCV System DTC
PCV systems are far more complex now, but they are also much better at controlling crankcase pressure.
Engine Bay Covers: Cosmetic or Comedic?
Each year, it seems engine bay covers get bigger and more difficult to remove.
Ignition Coil Output
To see inductance inside the primary windings, use an amp probe placed around the positive wire for the ignition coil.
Fuel Pumps and Cranking
Diagnosing the problem comes down to understanding what causes a loss of fuel pressure.
Auxiliary Coolant Pumps
Don’t be fooled into thinking that these pumps will go away with the surge in hybrid and electric vehicle production.
Catalytic Converter Theft Update
Converters are still being stolen at record rates.
AC Condensers
The characteristics that make the parallel-flow condenser so efficient are among its major drawbacks as well.
