Take Note of the Usual Problems of the GMC Sierra 2500 HD
The GMC Sierra 2500 HD may be a heavy-duty truck, but that doesn't excuse it from having problems that give drivers a hard time. Here are some of the common problems that truck owners should know so they won't be surprised should they experience these.
One of the common problems this GMC truck experiences is the rattling or popping noise that comes from right under the vehicle. With such case, the driver may automatically think that his muffler may have already blown, but a careful inspection would show that the noise actually comes from the muffler heat shield. This problem begins when the muffler heat shield becomes loose. So if you step on the gas and accelerate, the heat shield will create more noise. Making sure that it's properly attached to the muffler should easily solve this problem. In fact, General Motors offers a kit to properly correct it.
Hydro-boost relief valve
Owners of the Sierra 2500 HD may have a hard time stopping the truck, especially if they're driving at high speeds. This can be attributed to the malfunctioning hydro-boost relief valve, which may not have been compatible with the model when they rolled off the factory. As a result, the seal of the valve cracks. And if the hydro-boost system doesn't perform its function properly, drivers will have troubles on the road and get themselves in an accident. That's why in 2004, the National Highway Traffic Safety Administration ordered General Motors to recall the 2003 and 2004 models to have their faulty hydro-boost relief valve replaced. This recall potentially affects about 69,000 units.
Instrument panel cluster
Many 2500 HD truck drivers have been complaining about the faulty indicators, gauges, and meters on their dashboard. Reports show that speedometers have been working erratically and fail to show the real speed they're moving at. Also, the fuel gauge shows a full tank, but then the needle would go halfway down. To make matters worse, the gear shift indicator on the panel doesn't light up, which leaves the drivers unaware of the gear their vehicles are in. But despite all the problems with the instrument panel cluster, only the faulty gear shift indicator was addressed by General Motors in 2005 when it recalled at least 7,000 units to reprogram the instrument panel cluster for free.