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

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: Don't have a owner manual needing number for the park light and dash lights fuse

The parking lights have power from fuse number 17 and is a 15 amp fuse. The headlight switch and parking light relays are powered from this fuse. You should first verify fuse is good then test light switch and parking...

Q: I'm having fuel pump relay problems.

Hey there, thanks for writing in about your 2001 Jeep Grand Cherokee. It sounds like you have an intermittent connection issue caused by a loose fuse holding tabs. The black you see is carbon where the voltage is jumping a...

Q: My 4x4 system stopped working.

Hi there. First, put the vehicle on 4 jack stands with all tires off the ground. Then, start the engine and put the transfer case in 4 HI. Then put the transmission in Low. Watch the tires and drive shafts...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...