Skip the auto shop - Our mechanics make house calls

Q: When my truck is shifting from 2nd to 3rd gear, it make a loud thumbing noise.

asked by on

It's usually when I have get up to speed fast. For example, when I'm getting on the beltway and getting up to speed fast. I notice that when it goes from 2nd to 3rd it makes that thumbing sound. It's an automatic trans. I had the truck for 2 years now. It started doing this last yer just a few times, now it's getting worse. Please help I don't have a lot of money to spend just trying to figure out what the problem is. Thanks for your time.

My car has 149436 miles.
My car has an automatic transmission.

A: Hi, thanks for writing in. Unfortunately tr...

Hi, thanks for writing in. Unfortunately transmission problems are usually among some of the more expensive repairs. With the information given, the issue could lie in several different things and we would need to physically inspect it to give a further diagnosis. Always start diagnosing by checking the simple things first. Check the level of your transmission fluid. Make sure it is topped off and clean. When was the last time you had your transmission serviced? Do you have a clean filter in place? This is always a good place to start. You may find signs of more serious transmission issues when changing out the fluid. If these maintenance steps have taken place, and the issue still exists, you may want to think about issues with your torque converter. Further inspection at this point will be needed. Diagnosis is best done when a technician can perform a test drive.

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!

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: My 03 navigator leaked s brownish fluid and now it doesnt move

Hello, thank you for writing in. Due to the fluid found, we need to find and identify the cause of the leak first and foremost. This can be done by tracing it from where the fluid was found, or by...

Q: Engine misfires intermittently.

The most common cause of a random misfire on the Tribute is a failing ignition coil. The computer should be scanned to see if there are any codes and then the engine data should be monitored to see what the...

Q: Transmision

There are many reasons why your F-150 won't go when you give it gas. Unfortunately it is difficult for me to identify the source of your vehicle's issues with such limited information. Some important details for diagnosing this would be...

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.