Q: After shifting into 3rd gear, truck won't accelerate

asked by on

My truck is having what I think is transmission problems. After I shift to 3rd gear and hit around 40 mph, my truck will no longer accelerate. When I press on the gas pedal, the RPM goes out. It feels like the truck is just moving in neutral after I reach 40 mph. Please tell me what is causing this so that I can get it fixed. Thanks.

Hello there, thank you for asking about your 2006 GMC Sierra 1500HD. It sounds like the transmission is slipping. Replacing or rebuilding the transmission is likely the cure. To be certain, I suggest having a professional inspect your vehicle firsthand.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. After shifting into 3rd gear, truck won't accelerate

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: Gears slipping.

If your automatic transmission is slipping, either the fluid is low or you have internal transmission problems (failed front pump, faulty pressure regulator, etc.). Even checking transmission fluid can be a difficult task, so this is one best left to...

Q: Transmission grinds, clunks, & whines on interstate

The driveshaft and final drive assembly needs to be checked. This is possibly caused by a failed center driveshaft bearing. The rubber insulator can fail and cause this type of issue. The vehicle undercarriage and driveline will need to be...

Q: Q: Transmission

The electronic controls in modern cars have a "warm up program" for emissions purposes. By holding the engine revs a bit higher and longer when the engine is cold, it will warm up faster, therefore pollute less. If you are...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...