Skip the auto shop - Our mechanics make house calls

Q: Why does my 2009 GMC Acadia make a clicking/grinding sound when changing gears.

asked by on

When taking off from a stop the transmission will change properly but there is a clicking/grinding sound and it also starts jerking. I have to let off the gas to get the clicking sound to go away. This also happens when going around curves or going at a slow speed. It will also jerk and make the clicking sound after getting down the road just not as bad. We have changed the transmission fluid but its still the same. When i crank up it idles up and skips but after a couple seconds it straightens back out to normal. What is wrong? Please help!!

My car has 114963 miles.
My car has an automatic transmission.

Hi there. there are typically two reasons why this occurs. I have seen this happen simply because the vehicles computer needs to be updated. If the programming is off it can cause enough of a delay in shifting to where the vehicle will make this noise. In most cases though it is because one of the clutch shells cracks in the transmission which makes this noise. It can also be a failing cv axle, but that is not as common. I usually get the vehicle in the air and inspect it for the axles and if they are fine then the transmission needs to be gone through. This is best left up to a transmission specialist to repair.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • Why does my 2009 GMC Acadia make a clicking/grinding sound when changing gears.

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: Electric issue - 1999 Chevy S10

Hello. From what you describe it would appear that the battery or cables are having an issue. If power flows when the charger is hooked up, then that means that either the battery is dead or not making contact. I...

Q: My battery's dead and somebody is giving me a jump and it's not working

When jump starting your battery, you need to ensure that you have good metal to metal contact on both ends of the jumper cables. It could also be that your battery is toast. I recommend removing your battery and having...

Q: Car shakes when accelerating and has a hard time starting

Shaking or vibration may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve may cause the engine idle to drop below the normal...

Related articles

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...
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...
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...