Skip the auto shop - Our mechanics make house calls

Q: Won't shift out of second gear - 2000 GMC Sierra 2500

asked by on

After I had the transmission filter replaced, the truck started developing some issue with the transmission. I couldn't shift it into overdrive but it got worse. Now, I'm not able to shift out of second gear. I still can put it to reverse though. I had the fluids checked and they are good. What might be the cause of this?

A: Hello. This definitely sounds like an elect...

Hello. This definitely sounds like an electronic transmission control issue. It could be something as simple as a transmission range selection switch or something as serious as a transmission valve body. You may want to consult with a transmission shop or dealership to assist in this issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Intermittent overdrive

Hey there. This is most likely related to the transmission control module or one of the many different components that feed information to the module which controls many different functions of the transmission. A faulty transmission control module may...

Q: Rough acceleration and sputtering

The regulator is mounted to the fuel filter housing where the fuel line goes in. You may have a bad injector or two that is causing the problem you are having. The injectors on these engines had issues that are...

Q: Transmission slipping

When a transmission is slipping the fluid is the first thing to check. When looking at the fluid, not only should the proper fluid level be accessed but the condition of the fluid as well. A low fluid level would...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.