Are you experiencing a pulsating brake pedal in your GMC Sierra? This can be caused by a variety of issues, some of which are more serious than others. In this article, we will discuss the common causes of a GMC Sierra pulsating brake pedal. We will also provide some tips on how to diagnose the … Read more
Dealing with a soft brake pedal on your GMC Sierra can be dangerous and frustrating. You should absolutely not drive your truck until you track down the problem. While tracking down the problem sounds daunting, there’s a lot you can do at home to get a hard pedal. One possible cause of a soft brake … Read more
In this guide, we will explore potential causes and solutions for a GMC Sierra door that refuses to open, whether from the inside, outside, or both. The troubleshooting steps will depend on whether one or both handles are functioning. Faulty mechanisms, damaged components, or normal wear and tear can all contribute to a door that … Read more
If you own a GMC Sierra, you might have come across a situation where the truck won’t move in drive or reverse. It can be both frustrating and worrisome when this occurs, but don’t panic. In some cases, this issue may be related to the transmission or the shift lock control ECU/solenoid. A professional mechanic … Read more
When dealing with a GMC Sierra, the P0641 error code is not an uncommon issue. This error code appears when the vehicle’s powertrain control module (PCM) detects that the voltage in the “A” reference circuit is out of its specified range. The 5-volt reference voltage circuit serves as a crucial element of the engine control … Read more
The P0120 code on your GMC Sierra indicates an issue with the throttle position sensor (TPS). This sensor plays a crucial role in your truck’s performance, as it monitors the throttle valve opening percentage and provides input to the engine control module (ECM) to help regulate fuel and air intake. When the P0120 code is … Read more
The P0089 code in a GMC Sierra refers to a problem concerning the fuel pressure regulator system. This code gets logged when the powertrain control module (PCM) detects a discrepancy between the desired and actual fuel pressures. In other words, the code signifies “Fuel Pressure Regulator 1 Performance”, indicating that the designated fuel pressure regulator … Read more
Experiencing noise when turning your GMC Sierra can be both annoying and concerning. As the driver, it’s crucial to identify the possible causes of these noises and address them effectively to ensure a smooth driving experience and to prevent potential damage to your truck. Various factors can contribute to your truck making noise when turning. … Read more
Are you looking for information regarding your GMC Sierra shaking when stopped? You’ve come to the right place to learn about the common causes and potential solutions for this frustrating issue. Many GMC Sierra owners may experience shaking or vibration while their vehicle is stopped, particularly in gear. This can be both uncomfortable and concerning, … Read more
The GMC Sierra is a great truck that can last many miles with no issue. However, like any vehicle, it can face issues and malfunctions from time to time. One such problem that can occur in the Sierra is the tendency to not shift gears properly. When this happens, the first thing you should do … Read more