Chevy Tahoe: SRS On Diagnosis

  When you start your Chevy Tahoe, the OBD-II system runs a self diagnostic check on all major systems.  If any of these checks fail, you will see a diagnostic warning light on the dash for the corresponding system.  When the SRS system fails this check, you’ll see the SRS light.  SRS stands for supplemental … Read more

Chevy Tahoe P1682: Ignition 1 Switch → Circuit 2

  P1682 is a diagnostic trouble code that indicates that your Chevy Tahoe’s ignition switch is having a voltage problem.  It is typically caused by a faulty ignition switch, although there can be other causes as well. There are two “circuits” to the ignition switch.  The first one goes to the ECM through the throttle … Read more

Chevy Tahoe Radiator Leak: Symptoms, Causes, Fix

A leaking radiator in a Chevy Tahoe can cause your vehicle to overheat, leading to expensive engine damage. If not addressed promptly, a leaking radiator can cause long-term damage, such as a bad head gasket or a cracked head, which can be costly to repair. Identifying the symptoms of a radiator leak in your Tahoe … Read more

Chevy Tahoe Leaking Heater Core Diagnosis

One of the most common problems that can happen to a vehicle is a heater core leak.  If your Chevy Tahoe has a leaking heater core, it is not a breakdown risk.  Although, it is necessary to make sure that the lost coolant is replaced.  It can cause damage to the vehicle in other ways, … Read more

Chevy Tahoe Bad Starter → Symptoms & Diagnosis

  One of the most common problems that can occur in the life of a vehicle is a bad starter, that includes the Chevy Tahoe.  It is important to determine whether or not it’s a bad starter that is keeping the vehicle from turning over. If your Tahoe is not starting, don’t assume right away … Read more

Chevy Tahoe: P0720 → OSS Circuit → Malfunction

P0720 is a generic OBD II trouble code, which means that it has the same meaning for your Chevy Tahoe as it would any other vehicle.  It indicates that your Tahoe’s OSS (Output Shaft Speed Sensor) is reporting a malfunction. It’s typically caused by a bad OSS, or a wiring problem. The OSS works by … Read more

Chevy Tahoe P0520: Oil Pressure Switch/Sensor → Circuit

  P0520 is a common OBD2 trouble code.  It’s generic, which means that it has the same meaning for the Chevy Tahoe as it would any other vehicle.  P0520 indicates that the oil pressure sensor is operating outside of its normal “range”.  It is typically caused by a bad oil pressure sensor switch or a … Read more

Chevy Tahoe P0108:  MAP Barometric Sensor → High Input 

  P0108 is a generic OBD-II trouble code.  It indicates your Chevy Tahoe’s MAP (manifold absolute pressure) sensor’s voltage reading is outside of the normal operating range.  The voltage is too high.  It’s most commonly caused by a bad MAP sensor, wiring issue, or vacuum leak. The MAP sensor measures the air pressure coming into … Read more

Chevy Tahoe P0443 Code: Meaning, Causes, How To Fix

P0443 is a very common OBD2 code.  It’s generic, meaning it has the same definition for the Chevy Tahoe as any other vehicle.   If your Tahoe has this code, it indicates the EVAP purge control valve circuit is malfunctioning. This is typically caused by a short in the wiring to or from the purge … Read more