Tool Bucks Promotion and GM Service Information (SI)
TAC Tip: 5-Wire Stepper Motor Actuators
Stepper motors are used for control of the temperature regulation, air distribution and recirculation doors on automatic HVAC systems.
TAC TIP: Wheel Speed Sensor Diagnosis
An intermittent click or grind noise or ABS pump motor noises may be heard inside the vehicle at parking lot speeds and the ABS, Service Traction Control System, and/or Service StabiliTrak warning lamps may be on.
TAC TIP: Correct Replacement Spin-On Oil filter
Beginning in 2012, the available V6 engine (RPOs LFW, LFX, LLT) in these models was redesigned with tighter engine tolerances. The oil pressure was increased to accommodate these tighter tolerances. As a result, the oil filter specifications of the production oil filter and the service oil filter were also improved to meet the new engine requirements.
Correct Testing of New, Never-Installed Batteries
Conductance is a measurement of a battery’s current producing capability. This technology can help identify batteries that have reduced performance after being in service. During the formation manufacturing process, each plate is brought to a state of 80-90% completion.
TECH TIP – Mazda MAF Investigation
According to Mazda, a recent Parts investigation has revealed that some non-defective mass air flow (MAF) sensors have been replaced as a result of improper inspection. In order to prevent this, the following inspection procedure has been developed.
Absorbent Glass Matte Batteries: The Best choices for high powered applications.
Know when to use AGM Batteries – OEM’s specify AGM batteries for their superior ability to deep cycle between charges.
TECH TIP – ATE Magnetic Test Card Model: GLBATE760130
The ATE Magnetic Test Card helps you avoid improperly installing wheel bearing replacements on vehicles equipped with Anti-lock Braking System (ABS) sensors
TECH TIP – Installation Recommendations for Timing Belt Systems
On Honda 1.7L Engines
Tech Tip – Radio Static on All AM Stations – Cadillac CTS
Radio Static on All AM Stations – 2008-2012 Cadillac CTS Built Prior to May 1, 2012
Tech Tip – New Dual Brake Pedal Position Sensor
The Electronic Brake Pedal Override uses a dual Brake Pedal Position (BPP) sensor (two sensors in one). The dual BPP sensor replaces the old style open/closed brake switch that has been used for years.
Tech Tip – New Fuel Module Design
ACDelco recently made changes to several fuel modules to further enhance their performance. The timing of the changes for each part number has varied, but implementation of the changes began last summer.