You can expect to get a long service life from your GMC truck if you drive it a moderate amount. A typical truck will last between 200,000 and 300,000 miles, but some models can go even higher. Regardless of model, you can expect to get between 10 and 15 years of service from your truck.
Fuel level sensors fail in GMC Sierras
Fuel level sensors fail in GMC Sierras from 2007 to 2013. If your fuel gauge does not work, you need to replace the sensor. Fortunately, the problem is relatively inexpensive to repair. Changing the fuel pump control module and replacing the fuel level sensor will cost around $687 to $926.
The fuel level sensor is located in the engine compartment. This sensor sends a signal to the car’s computer system when the car’s fuel gauge reaches a certain level. When the sensor is not working properly, it sends an error signal to the powertrain control module, which can cause the car to malfunction.
GM mailed a notice to owners March 5 warning them of the defect. The company will replace the rear-tank fuel pump module and inspect the front tank. The recall is currently underway and will continue until replacement parts are available. In the meantime, GM is extending the warranty period to 70,000 miles and 7 years for affected vehicles.
The fuel level sensor can also fail in a GMC Sierra, but a simple replacement can be performed at home. Firstly, remove the oil from the engine by placing a drain pan underneath the oil pan. You should also remove the oil filter and gaskets. You can then replace the sensor with the new one. The new one should have the same dimensions as the old one.
The fuel sensor problem in GMC Sierras affects approximately three out of four vehicles. The problem is most common in GMC Sierras with model years 1999 to 2013, but can also occur in cars with more than two50,000 miles. The problem can be caused by a faulty upper intermediate steering shaft. The repair costs about $88 to $111 for diagnosis and the replacement of a fuel pump.
Another issue that can cause excessive battery drain is the GMC Sierra’s battery. These vehicles often require replacement batteries every 30,000 miles, and the battery replacement will cost around $200. For this reason, it’s important to carry a portable charger and jumper cables to fix the problem if it happens. If the battery is too low, you can also check the anti-lock braking system pump to see if it’s causing the excessive battery drain.
Transmission seals and fluids fail in GMC Sierras
If your GMC Sierras transmission is failing, there are several things you can do to repair the problem. There are two kinds of seals used in transmissions: static and dynamic. The static seal is made of a thin piece of synthetic rubber, which stretches to fill in gaps. The dynamic seal, on the other hand, has moving parts, which means it wears out more quickly.
When transmission fluid leaks, it can cause a vehicle to overheat. The fluid in the transmission is responsible for cooling the engine. If the transmission is overheated, it can lead to a fire. It’s best to replace the cooling lines as soon as possible.
A noisy transfer case is another sign that your transmission is having trouble. This is usually a sign of a problem with the front output shaft seal. It will make a growling, whine, or hum noise. But it can also be the result of other issues.
In addition to leaks in the transmission fluid, the transmission itself is another source for transmission fluid leaks. This problem can be caused by a number of different things, including a crack or damaged needle bearing. If the transmission fluid leaks from this part, it can lead to a complete failure of the transmission. It will also cause your parts to lose vital lubrication.
There are several signs that your GMC Sierra 1500 transmission needs to be changed. First, check the fluid levels. You may notice a leak while shifting. You may also notice a warning light on your dashboard indicating transmission problems. You may also hear strange noises when shifting or catching gears.
Another sign of a transmission failure is a leak at the output shaft. This leak will allow transmission fluid to escape and allow debris to enter the output shaft. During this time, the seal can dry out, resulting in leaking and other problems. The leaking oil can cause damage to your vehicle’s gears and valve bodies.
A leak in the transmission fluid and torque converter may also cause your GMC Sierra to shudder. Shifting can be difficult in this situation, and it may even cause a violent rollaway scenario if you’re not careful.
Electrical system issues plague GMC Sierras
In addition to mechanical issues, GMC Sierras are also plagued by electrical system problems. The car’s powertrain may not function properly during low-voltage events, which can lead to a variety of problems. These problems can affect radios, air conditioning, cruise control, and door-lock cycling, among other features.
While the new generation Sierra has not experienced many major problems yet, older models have suffered from a variety of problems. These include transmission problems and HVAC control failure. Fortunately, GM has fixed many of these problems quickly. Still, there are small niggles that can cause drivers headaches.
The electrical system is one area where owners have reported the most problems. Some vehicles have intermittent issues with turn signal on/off. Other problems involve ignition problems, air conditioning problems, and exhaust system problems. These issues can make a Sierra less reliable and more expensive. However, it’s worth noting that GMC has a strong lineup of trucks with excellent features.
Other common electrical system problems for GMC Sierras include failing fuel level sensors, which can cause hot or cold air to come out of the heater. Some vehicles may also have faulty fuel level sensors, which can result in inaccurate fuel gauges. Even the most basic repair will cost at least $110 for parts and labor.
GMC has been plagued with a range of issues recently. Older Sierras have problems with electrical systems and a faulty automatic transmission. GMC owners also complained about poor nighttime visibility. This is a symptom of electrical problems, which can be extremely frustrating. But if you’re a buyer, you may want to take the time to read Consumer Reports’ article. The magazine identified 17 key areas of trouble for GMC Sierras and their rivals.
Fuel economy is subpar
The fuel economy of GMC trucks isn’t the best among light-duty trucks. The Chevy Silverado is rated at 23/33/27 mpg city/highway/combined, while the GMC Silverado earns only 22/26/24 mpg city/highway. The GMC Sierra 1500 earns 17 mpg. Both trucks are fairly large, but they differ in design and equipment. The GMC Sierra 1500 has an average design but comes with plenty of interior space for all passengers. It isn’t cheap, though, and it’s not a bargain unless you need to haul large amounts of cargo.
The GMC Sierra is the best-selling light-duty pickup in the U.S., and it has one of the best powertrains among light-duty diesels. The 2020 Ram 1500 EcoDiesel 2WD, meanwhile, achieves 22/32/26 mpg. This fuel efficiency isn’t as impressive as the Ford F-150 Power Stroke’s, but GM seems to be catching up.