Archive for July, 2019

New Turbocharged 2.7L 4-Cylinder Engine Powers Full-Size Trucks

New Turbocharged 2.7L 4-Cylinder Engine Powers Full-Size Trucks

The new 2.7L turbocharged 4-cylinder engine (RPO L3B) available on 2019-2020 Silverado 1500 (LT and RST models) and Sierra 1500 (SLE and Elevation models) offers capability and efficiency in a […]

July 31, 2019
LIN Bus Diagnosis

LIN Bus Diagnosis

Smart motors, switches, and sensors that use Local Interconnect Network (LIN) buses can be found on many 2014-2020 GM passenger cars and trucks. The LIN bus consists of a single […]

July 31, 2019
Cleaning and Transferring Components After Severe Internal Engine Damage

Cleaning and Transferring Components After Severe Internal Engine Damage

When replacing an engine due to internal damage on 2019 and prior GM passenger cars and trucks, extreme care should be taken when transferring components from the failed engine to […]

July 31, 2019
DEF Injector Replacement

DEF Injector Replacement

Some 2016-2019 Chevrolet Low-Cab Forward (LCF) trucks equipped with the 3.0L diesel engine (RPO IZ3) or 5.2L diesel engine (RPO I1B) may have an illuminated Check Engine MIL and DTC […]

July 31, 2019
Installing the Rearview Camera Kit

Installing the Rearview Camera Kit

The factory-provided Rearview Camera Kit (RPO 5N5) available on 2019 Silverado 1500 and Sierra 1500 models and 2020 Silverado 2500HD/3500HD and Sierra 2500HD/3500HD models include a camera, extension harness and […]

July 31, 2019
Throttle Body Connector Terminal Tension

Throttle Body Connector Terminal Tension

Some 2019 XT4 models equipped with the 2.0L 4-cylinder engine (RPO LSY) and 2019 Silverado 1500 and Sierra 1500 models equipped with the 2.7L 4-cylinder engine (RPO L3B) may have […]

July 31, 2019
6.6L V8 Gasoline Engine Exchange

6.6L V8 Gasoline Engine Exchange

The 6.6L V8 gasoline engine (RPO L8T) (Fig. 20) available on 2020 Silverado 2500/3500 and Sierra 2500/3500 models is now under the engine exchange program for the 2020 model year. […]

July 31, 2019
Whine Sound from Under Vehicle

Whine Sound from Under Vehicle

A whine sound may be heard coming from under the vehicle on some 2019-2020 Envision models equipped with the 2.0L 4-cylinder engine (RPO LTG) and the 9T60 automatic transmission (RPO […]

July 31, 2019
Tips for Performing Warranty Reprogramming Events

Tips for Performing Warranty Reprogramming Events

In order to ensure successful and complete repairs are made when reprogramming control modules, GM is now reviewing module reprogramming warranty claim information and comparing it to Service Programming System […]

July 24, 2019
Find the Training Times Newsletter on GlobalConnect

Find the Training Times Newsletter on GlobalConnect

The 2019 Q3 Mark of Excellence (MOE) Technician Product Knowledge Test was recently made available to technicians enrolled in the MOE Service Technician program (U.S. only). The test measures technicians’ […]

July 24, 2019
Rough Idle After Engine Repairs

Rough Idle After Engine Repairs

After making engine repairs that included removing and installing the engine wiring harness on the right side of the 3.6L V6 engine (RPO LGZ) on some 2017-2019 Colorado and Canyon […]

July 24, 2019
Re-centering the Transmission Range Control Module

Re-centering the Transmission Range Control Module

Some 2017-2019 XT5 and 2017 LaCrosse models may have a Service Transmission message displayed on the Driver Information Center along with one or more of the following DTCs: P0722, P0729, […]

July 24, 2019
Hot Tips for A/C Service

Hot Tips for A/C Service

When performing A/C service on 2013-2019 GM passenger cars and trucks equipped with R-1234yf refrigerant, there are several procedures that must be followed in order to make a proper repair. […]

July 24, 2019
Vehicle Will Not Shift Out of Park

Vehicle Will Not Shift Out of Park

Some 2011-2015 Volt models and 2014-2016 ELR models may not shift out of Park. If this condition is present, there may be water intrusion in the X98 Hybrid/EV Battery Charger […]

July 24, 2019