Diagnosing Electronically Controlled Thermostats
On these systems, there are two ways the engine management module knows there is a problem.
Why Do Modern Vehicles Require Precious Metal Spark Plugs?
Understanding modern ignition systems will help complete preventative engine maintenance during tune-ups.
Separating AGM Battery Facts From The Myths
AGM eliminates acid spilling in an accident because it is sealed. They can be installed at odd angles.
Voltage Drop Testing Is The One Meter Test That Doesn’t Lie
The measurement of voltage is like the speed of highway traffic – when loads are light, the voltage does not drop.
Why O2 Sensors Fail To Calculate Exhaust Levels Over Time
As miles accumulate, O2 sensors effectively “catch a cold,” meaning they can’t breathe like they should.
Fuel Pressure And Volume
The fuel pressure sensor usually has three wires and operates on five volts. What controls the speed of the fuel pump?
Understanding Belt Friction And Tension
Misalignment and bearing wear can cause the belt to track off-center.
Whatever Happened To The Original Hemi Head?
Many purists say what we think of a Hemi engine today doesn’t meet the hemisperical standards.
New Garage Gives Underhood Service An Edge In 2020
The Underhood Service Garage features latest auto technology to ensure our editorial is aligned with industry expectations.
Future Automotive Fantasy Pales Next To Today’s Technology
Our industry continues to find real solutions to today’s challenges and to those they’ll be facing soon.
Tech Tip: TPMS Relearn Procedures
Double-check as you go that the steps are done correctly. There are no shortcuts to the relearn process.
Diagnostic Strategies For Stop/Start Systems
This function of the power management system that uses several modules to decide when the engine needs to stop and start.
