Ignition And Coil Flashover
If you see carbon tracking or “flash over” on a spark plug, boot or coil, it is not normal.
Duramax 6.6L Turbocharger Replacement
No matter the symptoms or damaged parts, the root cause of the failure must be diagnosed and resolved.
What’s Your Two-Year Plan?
After two years, our industry finally had its homecoming.
Fuel Injector Wave Forms
Diagnosing a fuel injector circuit with a scope can help you to confirm the health of the drivers and injectors.
Diesel Glow Plugs Operation
Having higher pressures and metered fuel at the right time means more efficiency, less pollution and lower fuel consumption.
Read Your Copy of the December Digital Edition Now
This month’s digital magazine includes articles from Underhood Service, as well as other technical and marketing topics.
Ford: Permanent Diagnostic Trouble Codes (DTC’S)
A Permanent DTC can only be cleared by the module strategy & cannot be erased by clearing with a scan tool.
Ignition Diagnostics
This part of the cycle is when the mixture of air and fuel ignites and how the flame front spreads in the cylinder.
Veterans and Vehicles – You are in good company
Since 1931 we have chronicled the sacrifices and successes veterans have made for our country and the auto care industry.
Seasonal Fuel Blends
The cause of the misfires is the temperature fuel evaporates, otherwise known as the volatility.
Replacement Parts Quality – Better Than Ever
Despite what some people may believe, high-quality replacement parts are more common than ever.
Servicing Fuel Level Sensors: Fuel Gauge Inoperative?
Do not remove the fuel level sensor from the fuel module unless you get a faulty reading during the testing of the sensor.
