One of the more common issues that can occur is a vehicle that shakes when accelerating. If your GMC Sierra is shaking when accelerating, it’s something that should not be ignored. While the vibration can be annoying, it is often indicative of a serious problem. Speed Matters Vehicle speed matters when you feel a … Read more
One of the most annoying things that you can coming from under the hood of your GMC Sierra is a ticking lifter. The ticking noise makes it sound like the engine is going to give up the ghost at any time. There are a few things that can cause a lifter to tick, such as … Read more
Your GMC Sierra’s clutch provides a direct connection between the engine and transmission. Without it, it can’t move at all. This connection requires a tremendous amount of pressure. This guide is intended to help you determine why your clutch is slipping on the flywheel. Note: This article is for manual cars only. Here’s the automatic … Read more
A sputtering engine can indicate a number of problems. If your GMC Sierra has a sputter, it is most likely going to be caused by bad fuel system, ignition system, MAF sensor, or bad catalytic converter. Your Sierra’s engine is a giant pump. It pulls in air (where it is measured by the mass airflow … Read more
P0037 is a generic OBD II trouble code, which means that it has the same meaning for the GMC Sierra as it would for any other car or truck. Diagnosing this code is relatively straightforward. It is usually caused by a bad oxygen sensor, or a wiring issue. This code is closely related to P0031 … Read more
The single most important safety feature in your GMC Sierra is a good set of brakes. If your brake pedal is going to the floor, it indicates that there is a serious problem in the braking system. When the pedal goes to the floor, it’s usually caused by a bad master cylinder, leaking brakes, bad … Read more
One of the most common automatic transmission problems is shifting hard. If your GMC Sierra has a hard shifting transmission, it can be uncomfortable to drive and a sign of serious problems. If your truck’s transmission is shifting hard, it can cause a harsh ride and lead to potential damage over time. Numerous factors can … Read more
Many modern GM made vehicles have a battery saver feature, this includes the GMC Sierra. If you are getting a “battery saver active” message, it means that your Sierra’s electrical system voltage has dropped to a critical level (less than 11.7 volts). Typical electrical systems run at 13+ volts with the engine running. The battery … Read more
Rotors are metal discs that are visible behind the Sierra’s wheel. They work together with the calipers and brake pads to slow down your GMC Sierra. Due to braking friction, rotors have to withstand and dissipate a tremendous amount of heat. This causes the rotor surface to be uneven making the brake pedal feel … Read more
P0031 is a generic code, which means that it has the same meaning for the GMC Sierra as it would any other OBDII equipped vehicle. As far as diagnostic trouble codes go, this is a relatively easy one to diagnose. It is usually caused by a bad oxygen sensor, or a wiring issue. Table of … Read more