Magazine Archives - Page 15 of 70 - UnderhoodService
Active Management Of Oil Pressure

Things have changed with the introduction of multi-weight oils and changes in the design of the oil pump.

Lane Departure Warning Intermittently Does Not Alert

Some customers may comment that the lane departure warning intermittently does not alert in some cases while driving.

ABC Suspension Rocking When Stationary

Perform new SCN coding of ABC control unit, then calibration of plunger travel sensors and load calibration.

Chassis Control Modules After Reconnecting Battery

To resolve the issue, fully disconnect the negative lead from the battery terminal.

ABS Fault Code 02757 Diagnosis Tip

Models: 2011-2014 Jetta, Jetta Sportwagen, Golf/GTI, Tiguan, Eos, 2012-2014 Beetle, Passat.

Most Common Causes of Intermittent Misfire Codes

Misfires that turn on the check engine light and log a cylinder-specific fault code are the easiest to diagnose.

Automotive/Medical Industry Partnerships Nothing New

These improvements to the iron lung machine were small but impactful.

Radio Waves And No-Start Diagnostics

When a vehicle starts today, the energizing of the starter is only one of many events.

Driveability Diagnostics And Direct Injection

Direct injection can be a diagnostic challenge, but with the right foundation, problems can be solved profitably.

Pulse-Width Fuel Pump Diagnostics

Modern pumps do not vary the voltage to the pump; rather, they pulse the power to the pump.

Looking For The Positive Side Of The COVID-19 Crisis

There has been an uptick in technicians engaging in technical training on the Underhood Service website.

VW DSG 02E Transmission: A Diagnostic Pre-Checklist

This particular transmission is frequently powered by a diesel engine.