Magazine Archives - Page 17 of 69 - UnderhoodService
The Complexities Of Modern Timing

The technology that leads to more fuel efficiency and performance also means increased complexity with timing components.

Auto Service The Way It Used To Be

The auto service business has definitely changed over the decades, but in some ways the story probably has stayed the same.

Volts And Amps: It’s Not About How Many, It’s About How Long

With “the rest of the story” in mind, let’s review how we measure cold-cranking amps, amp/hours and reserve capacity.

Vehicle Inspection Red Flags

Inspecting these 12 things will keep your customers safe and happy.

What Is This On The Frame Rail Of The New Dodge Ram?

Active-Tuned Mass Modules (ATMM) mounted on the frame rails search out unfavorable vibrations and apply countermeasures.

LTF And STF Fuel Trim Feedback Loops

How to understand rich, lean and somewhere in between.

Chrysler’s Totally Integrated Power Module Simplifies Circuits

The symptoms of a failing TIPM can vary depending on the vehicle. Check out your options for this repair.

TPMS Diagnostic, Replacement Tips

Using new TPMS tools, you can have several options to replace and reprogram a sensor.

The Fight For The OBDII Port

Some techs have noticed coverage on some newer vehicles is not that great, they can’t access modules or tests are missing.

GF-6 Oil Specs Are Here

Should you start stockpiling GF-5 oil for older vehicles? We have the answer for you here.

Diagnosing Audi A8 TPMS Issues

These are all the steps you’ll need to pinpoint fault issues in TPMS for 2009-2016 Audi A8 vehicles.

Turbo Tools: Boost Drivability, Diagnostics

The two most important parameters to look at are the desired boost pressure and actual boost pressure during a test drive.