Engineering Better Belt Systems
When a piston accelerates downward after the ignition of the fuel and air, the crankshaft speeds up and then slows down as it reaches the bottom of the stroke.
Reprogramming And Diagnosing Modules And Networks
When a late-model car or truck is started, it is a lot more than the switch activating a solenoid for the starter. Now, it is a series of handshakes and exchanges of information between modules over networks.
Like It Or Not: Vehicle Manufacturers Have Your Data
You probably know your phone, computer and other devices are constantly collecting your data. Did you know your vehicle does this, too?
Diagnosing Positive Crankcase Ventilation Leaks
The PCV system prevents crankcase blowby vapors from escaping into the atmosphere by capturing the vapors, separating the oil and directing them into the intake manifold so they can be burned in the engine.
Dumb Thoughts About Smart Cars
Only 2 percent of accidents are due to vehicle component failure of degradation.
GM Tech Tip: Service ABS / TCS / Power Steering, Suspension Message
Monitor the voltage on the communication enable circuit 5986 at any of the modules affected.
Chevrolet Tech Tip: Rough Running Engine, DTC P0300
Some customers may complain of a rough running engine and the check engine light is on. You may find DTC P0300 (Engine Misfire Detected) set along with a misfire and low compression in one or more cylinders.
What Techs Have To Worry About With GF-6 Oils
API’s newest GF-6 oil standard have recently been approved, we are now beginning to discover just exactly what future oil service may look like for shops.
Oxygen Sensor And Catalyst Efficiency
The catalyst efficiency monitor verifies that the catalytic converter is operating at a high enough efficiency rating to keep exhaust emissions within predetermined values. The PCM compares the signals from the upstream and downstream oxygen sensors to determine the state of the converter. These “tests” are called the readiness monitors.
Making A Living With A Scope
All technicians know more complex cars with more expensive modules and sensors are coming to shops so parts swapping is not usually an option.
Fuel: It’s The Tank, Not The Pump
One of the most basic procedures when replacing a fuel pump – and often the most overlooked – is inspecting the fuel tank.
Why Maintenance Matters
Although Car Care Month is typically celebrated twice a year in April and October, that doesn’t mean you should miss great opportunities to host impromptu car care clinics during the summer.
