Stant Receives 2015 GM Supplier Quality Excellence Award
The award recognizes top-performing suppliers that have met or exceeded GM’s stringent set of quality performance criteria and have achieved cross-functional support of the entire GM organization.
GM Tech Tip: Interference Related To Aftermarket ALDL/DLC Device
Customers may comment on various issues with their vehicle related to high- or low-speed data bus traffic. The information contained in this bulletin is not meant to single out any one device or symptom, but to provide additional information that may be useful for diagnosing issues that do not have other diagnostic methods to identify the root cause.
GM HVAC Door Actuator Motors: Operation And Calibration
There are several types of electrically driven actuator motors used in today’s GM cars, and they all function differently. Keep reading for operation tips.
GM: Transmission Not Moving Or Excessive Slipping
When a GM 6L80/90 transmission finds its way into your shop with a complaint of no forward or reverse movement, or is slipping badly in all ranges, initial inspection may reveal a cracked or split sump filter. However, filter quality may not be the underlying issue.
AGM Batteries And Testing
Two of the greatest changes we’ve seen in starting/charging systems during the past few model years have been the expanded use of the Absorbed Glass Mat (AGM) battery as standard equipment and the accelerating pricing structures of both AGM and conventional flooded-cell batteries.
GM Battery Maintenance: Cold Weather Or Long Stand Time
Inside the battery, the electrolyte is generally composed of 35% sulfuric acid and 65% water. When a lead acid battery is inactive (not actively discharged and charged), the acid, being heavier than water, will settle toward the bottom. This leaves a low acid concentration near the top, and higher concentration at the bottom. This condition is referred to as acid stratification.
Continental Offers VDO OEM Flex Fuel Sensors For GM Vehicles
VDO flex fuel sensors are the latest in green technology for GM vehicles. The sensors are designed to calculate the percentage of ethanol in fuel and adjust the output signal to the ECU, creating dynamic ignition timing and E85 capacity.
Throttle-By-Wire Codes: P1512 On 2002 GMC Envoy
The PCM continuously monitors the commanded and actual throttle positions. The commanded throttle position is compared to the actual throttle position based on accelerator pedal position and possibly other limiting factors, and both values should be within a calibrated range of the other.
State-Of-Charge And Charging Systems Diagnostics On Late-Model GM Vehicles
On 2007 and up GM vehicles, using conventional battery and charging systems tests can prove inconclusive. This is because of GM’s Electrical Power Management (EPM) system designed to monitor and control the charging systems and send diagnostic messages to alert the driver of possible problems. The EPM system primarily utilizes existing on-board computer capabilities to maximize the effectiveness of the charging systems, manage the load, improve battery state-of-charge and life, and minimize the system’s impact on fuel economy.
MAHLE Aftermarket Inc. Ads Come To Life With Augmented Reality
MAHLE Aftermarket Inc. has incorporated innovative augmented reality technology into its series of SMART PART(ner) advertisements that enables the print material to come to life. Augmented reality has been implemented into advertisements promoting MAHLE Original filters, thermostats and turbochargers, as well as Victor Reinz gaskets. Augmented reality is, as defined by MAHLE, “a technology that