How a Bear proof box opens...... AND CLOSES!!!

GMT 360/370 TrailBlazer/Envoy Brake switch removal.

Amazon sends wrong part in box

Trailblazer Shift Lock Manual Overide

GM Instrument Cluster Fuel Gauge Check Using Serial Terminal App & Phone With OBD2 Adapter

Benchtop GM security relearn.

2002 TrailBlazer Serial Data

2002 TrailBlazer Powerup Sequence as seen at the Instrument Cluster.

2002 TrailBlazer 2 Lo Range?

2002 TrailBlazer Battery Light

2002 TrailBlazer Oil Pressure SWITCH demo

PRND321 Cluster Display

Monitoring Misfires with Torque Pro on 2002 TrailBlazer 4.2

TrailBlazer Fan Clutch Speed Sensor Bench Test

2002 TrailBlazer Water Pump Leaks only at low pressure.

2002 TrailBlazer 4.2 Fan Clutch at 100%

Why won't my GM key turn off?

2002 TrailBlazer Ignition Coil Firing Test

Trailblazer 4WD front axle disconnect inside view of activation

Inside the TrailBlazer Front Axle Actuator

Front wheel drive axle disconnect needle bearing inspection

Reading DTCs from a 2002 TrailBlazer with a Veepeak Mini Bluetooth OBD2 adapter & Car Gauge Pro.

Testing the accuracy of the MityVac cooling system pressure gauge.

GM Passlock Sensor Benchtop Demonstration

GM 4.2 Vortec oil pressure switch testing

Car Gauge Pro/Scan All

2003 Envoy PCM & BCM Tabletop testing

2002 TrailBlazer IPC serial data display test

2002 TrailBlazer. Vehicle communications with no BCM

Testing an ELM327 clone for SAE J1850 VPW output