GM 4.8L, 5.3L, 6.0L Index of Articles

A trouble code P0106: MAP Sensor Performance Problem is probably one of the most common MAP sensor trouble codes that'll pop up and illuminate the check engine light on your... [read more]

The manifold absolute pressure (MAP) sensor, on the 1999-2006 V8 Chevrolet Silverado (Suburban, Tahoe) and GMC Sierra (Yukon, Yukon XL) can be easily tested with a simple... [read more]

When a trouble code P0121: Throttle Position Sensor Performance Problem lights up the check engine light on your Chevrolet Silverado or GMC Sierra, you can usually conclude... [read more]

The 1999-2006 V8 equipped Chevrolet Silverado (Suburban, Tahoe) GMC Sierra (Yukon, Yukon XL) comes equipped with 2 knock sensors. When knock sensor 1 malfunctions, the... [read more]

The 1999-2002 V8 Chevrolet Silverado and GMC Sierra come equipped with an old-style throttle position sensor -no electronic throttle body. In this tutorial I'll explain... [read more]

Testing the knock sensors can seem quite the challenge, since they're located under the intake manifold. But you can test them without removing the intake manifold and... [read more]

A trouble code P0753: 1-2 Shift Solenoid Circuit Electrical Malfunction points to a malfunction of the 1-2 shift solenoid that's causing a transmission shift issue. In... [read more]

The P0123: Throttle Position Sensor Circuit High Voltage trouble code is one of the 3 trouble codes that the fuel injection computer will register when there's a problem... [read more]

Testing shift solenoid A and shift solenoid B, in your 1999-2008 V8 equipped Chevrolet Silverado and GMC Sierra is not hard. In this tutorial I'll explain how to... [read more]

One of the most common throttle position sensor trouble codes is the P0122: Throttle Position Sensor Circuit Low Voltage trouble code. When this bad boy pops up, you can... [read more]