Archive for August, 2018

New V8 Engines Feature Dynamic Fuel Management

New V8 Engines Feature Dynamic Fuel Management

The all-new 2019 Silverado 1500 and Sierra 1500 offer two new V8 engines: the 5.3L V8 (RPO L84) and the 6.2L V8 (RPO L87). (Fig. 1) Fig. 1 These new […]

August 30, 2018
Using the GE-52079 Coolant System Fill Tool

Using the GE-52079 Coolant System Fill Tool

The supercharged 6.2L V8 engine (RPO LT5) in the 2019 Corvette ZR1 uses five charge air cooling radiators. Behind the front fascia, there are three charge air cooling radiators; one […]

August 30, 2018
CVT Transmission Fluid Degradation and Replacement

CVT Transmission Fluid Degradation and Replacement

Some Jatco CVTs (continuously variable-ratio automatic transmissions) (RPOs M4M, MR8) available in the 2014-2019 Spark (Fig. 11) may have a short duration shudder on launch from a stop or on […]

August 30, 2018
Multiple DTCs Set Due to Engine Harness Damage

Multiple DTCs Set Due to Engine Harness Damage

Multiple intermittent Malfunction Indicator Lamps (MIL) may be illuminated and a loss of communication with several modules, including several U-codes (DTC) set, may be found on some 2016-2018 Colorado and […]

August 30, 2018
Rear Vision Camera Missing Guidance Lines or Distorted Image

Rear Vision Camera Missing Guidance Lines or Distorted Image

Some 2019 Equinox, Colorado, Silverado 1500, Terrain, Canyon, and Sierra 1500 models equipped with the HD Rear Vision Camera (RPO UVB) may have a distorted or “fisheye” camera display (Fig. […]

August 30, 2018
All-New 2019 Silverado 1500 and Sierra 1500 Ready to Work

All-New 2019 Silverado 1500 and Sierra 1500 Ready to Work

For 2019, the Silverado 1500 (Fig. 1) and Sierra 1500 (Fig. 2) are all-new pickups with new powertrains, mixed material construction, and a wealth of enhanced safety and convenience features. […]

August 24, 2018
Sierra MultiPro Tailgate

Sierra MultiPro Tailgate

The innovative MultiPro tailgate available on the 2019 Sierra (Fig. 16) offers flexibility and functionality designed to improve loading, unloading and access to the cargo box. It features a primary […]

August 24, 2018
LT5 Supercharger Electronic Bypass Valve

LT5 Supercharger Electronic Bypass Valve

The supercharger on the 2019 Corvette ZR1 creates a maximum boost pressure of 13.96 psi (96.3 kPa) to help the 6.2L small block V8 engine (RPO LT5) deliver 755 horsepower […]

August 24, 2018
Corvette Break-In Oil Change Information

Corvette Break-In Oil Change Information

2014-2019 Corvette models equipped with the 6.2L V8 engine (RPO LT1, LT4, LT5) with a dry sump oil system (RPO Z52) (Fig. 31) require an engine oil change immediately after […]

August 24, 2018
Engine Harness Rubbing on Battery Tray

Engine Harness Rubbing on Battery Tray

The engine wiring harness may be rubbing on the edge of the battery tray on some 2016-2018 Malibu models equipped with the 1.5L engine (RPO LFV). As a result, the […]

August 24, 2018