Archive for November, 2018

Changes in Transmission Oil Cooler Flush Requirements

Changes in Transmission Oil Cooler Flush Requirements

Recent GM studies have shown that automatic transmission oil cooler flush requirements have limited benefit on many current transmission repairs. Based on the studies, GM will no longer require a […]

November 20, 2018
Boom or Moan Sounds from Active Noise Cancelation System

Boom or Moan Sounds from Active Noise Cancelation System

The Active Noise Cancelation (ANC) module filtering function may not be operating properly or the ANC microphone may not be seated correctly in the headliner on some 2016-2018 Malibu models. […]

November 20, 2018
Charge Air Cooler Moisture Conditions

Charge Air Cooler Moisture Conditions

Some 2018 Equinox and Terrain models equipped with the 1.5L 4-cylinder engine (RPO LYX) or 2.0L 4-cylinder engine (RPO LTG) may have an illuminated Check Engine lamp and DTCs P0299 […]

November 20, 2018
Bolt EV Not Charging to Full Capacity

Bolt EV Not Charging to Full Capacity

Some 2017-2019 Bolt EV models may not have charged to a full charge level, as shown on the power indicator gauge on the instrument cluster, after a complete vehicle charge […]

November 20, 2018
New Vaportek Odor Eliminator System

New Vaportek Odor Eliminator System

The Restorator from Vaportek is a new odor eliminator system now available through GM Dealer Equipment. Based on GM testing, the easy-to-use, portable system effectively eliminates odor contamination quickly and […]

November 20, 2018
New PicoScope Oscilloscope Kits Now Available

New PicoScope Oscilloscope Kits Now Available

The CH-51450 PicoScope is a GM-specific 4-channel, PC-based automotive oscilloscope that can be used in the service bay or on the road to diagnose electrical circuits as well as signals […]

November 16, 2018
EL-50332 Hybrid/EV Battery Service Tool Update

EL-50332 Hybrid/EV Battery Service Tool Update

After replacing a hybrid/EV battery section on the 2011-2019 Volt; 2014-2016 ELR, Spark EV; 2017-2018 CT6 PLUG-IN; and 2017-2019 Bolt EV models, the new battery section has to be balanced […]

November 16, 2018
Measuring Voltage Drop and Resistance

Measuring Voltage Drop and Resistance

In the simplest terms, electricity consists of the movement of electrons, which flow through batteries, wires, switches, and other conductors. A common comparison is that electrons in a wire flow […]

November 16, 2018
Engine ID Needed during ECM Programming

Engine ID Needed during ECM Programming

While programming an Engine Control Module (ECM) on some 4-cylinder engines, the Service Programming System (SPS) may prompt for an engine identification number. (Fig. 15) The engine ID number is […]

November 16, 2018
Low Voltage or Loss of Power/Ground during ECM Diagnosis

Low Voltage or Loss of Power/Ground during ECM Diagnosis

When performing diagnosis on a vehicle for several Engine Control Module (ECM)-related DTCs, it’s critical to check for conditions that may cause low battery voltage or a momentary loss of […]

November 16, 2018