List of Transmission Problems in a GMC (5 Warning Signs)
By
Vroomouk
In this brief guide, we are going to provide you with common problems with GMC transmission and what you can do to rectify these problems before they worsen.
GMC cars mostly have an automatic transmission and do not require any manual input to shift gears while driving as most of the cars have automatic transmission. Various sensors and mechatronic systems work in coordination to shift gears automatically.
Automatic transmissions have a global reputation for quality, reliability and durability. However, there are many problem with automatic transmissions and we’ll tell you why and how you can solve them
What are the common problems with GMC transmission?
Some of the most common problems with GMC transmission are:
- Difficulty shifting gears
- Mechatronic malfunction
- Transmission fluid leakage
- Solenoid malfunction
- Incorrect gear ratio
Why is Difficulty shifting gears a problem with GMC transmissions?
You would want a seamless and easy shift even at low throttle input, so if your GMC transmission is shifting harshly or with difficulty even at low speed then there is definitely a problem.
What are the signs of this problem with the GMC transmission?
You would immediately notice and sense if the GMC transmission is shifting with difficulty from one gear to another as this is one of most important issues with GMC.
How to solve this GMC transmission problem?
Firstly try replacing the transmission pressure sensor, if that doesn’t work then check for an oil leak in the servo assembly of the particular gear. These are primarily two fixes for this problem.
Why is Mechatronic malfunction a problem with GMC transmissions?
GMC transmissions are very advanced but dependent on a lot of mechatronic components. If these mechatronic components fail then GMCtransmission is unable to function properly and results in poor drive
What are the signs of this problem with the GMC transmission?
This causes an error message on the screen of the transmission and also the GMC goes into a failsafe mode. it also may not start instantly and drive slower than normal
How to solve this GMC transmission problem?
Make sure that the cable is properly connected to the sensor or the sensor itself is working. These are the ways of fixing this malfunction on a GMC.
Why is Transmission fluid leakage a problem with GMC transmissions?
GMC transmissions are very advanced and leakage proof systems and if anything is leaking out of them then this could cause transmission overheating. It is definitely a sign of a problem which may cause serious trouble for you in the future.
What are the signs of this problem with the GMC transmission?
You would get an error such as P0842 or errors in the similar range which are associated with transmission fluid pressure. If these sensors get a low pressure this will indicate there is not enough fluid and a leakage somewhere in the transmission.
How to solve this GMC transmission problem?
Detecting where the leak is and closing it, is the most obvious solution to fix this sign before it causes mechanical damage to your car. Usually the gaskets or the seals in the transmission are worn out or broken to cause a fluid leak.
Why is Shift Solenoid malfunction a problem with GMC transmissions?
Shift solenoid malfunction means there is a problem with the gear shifting. A GMC transmission changes gear by directing pressurized transmission fluid to move clutches and bands around. The computer controls all of this with little spring-loaded devices called solenoids.
What are the signs of this problem with the GMC transmission?
P0750 is the code that will be shown if there is a shift solenoid malfunction with the GMC transmissions. This is a generic code which you will get using OBD-II for your transmission.
How to solve this GMC transmission problem?
Some common solutions are changing the transmission fluid and filter or replacing faulty solenoids. Also you can repair or replace a faulty transmission pump.
Why is Incorrect gear ratio a problem with GMC transmissions?
If the GMC transmission is with an incorrect gear ratio then it can cause anything from shift solenoid problems to transmission fluid problems.
What are the signs of this problem with the GMC transmission?
P0730 is the code that will be shown if there is an incorrect gear ratio with the GMC transmissions. This is a generic code which you will get using OBD-II for your transmission.
How to solve this GMC transmission problem?
Wires connecting sensors to the transmission control module and other electrical connections should be inspected and any damaged or corroded wires in and near the transmission control module should be repaired or replaced to fix this issue.
How to precisely diagnose these common problems in GMC transmission?
If you need to precisely diagnose these common problems then you need to use a diagnostic tool which is software based and can be connected to the vehicle electronic system as GMC transmission fully electronically controlled automatic transmission.
How to prevent getting these problems in the first place?
To prevent these problems, you need to change the GMC transmission oil as per the manual or when it is too dirty. This is the easiest and most effective way to take care of your vehicle transmission and also drive your vehicle in a recommended way.
FAQs: GMC transmission problems
How long does a GM transmission last?
There is no one number for mileage but some transmissions can last just over 10,000 miles, while others will last over 200,000 miles. Generally though, regular vehicle maintenance is the number one factor affecting a transmission’s lifespan, and good upkeep can help it last even longer.
What years did Chevy trucks have transmission problems?
The Chevrolet Silverado 1500 has had a period of several problem years in its recent history. From 2012 to 2019, each Silverado year model was filled with issues. The 2012 and 2013 year models have a few dozen reported issues each, mainly pertaining to faulty engines and transmissions.
Conclusion
In this brief guide, we have provided you with common problems with GMC transmission and what you can do to rectify these problems before they worsen.
If you have any questions or comments please let us know.
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