Q: My 2003 Buick will not accelerate past 30mph. Transmission fluid is fine. What could be the issue?

asked by on December 24, 2017

The car will not accelerate past 30mph. The engine sounds fine and while in park pumping the gas a little sounds fine. Not sure why it will not accelerate.

My car has 100000 miles.
My car has an automatic transmission.

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・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

When I turn the steering wheel the low oil light turns on.
It's very likely that your car is low on oil. When you turn a corner, tho oil in the oil pan moves away from the oil pickup tube. When the oil level is low, the oil pickup tube becomes completely...
Powertrain warning lamp
In this case you will need to have the computer scanned to retrieve the codes that are stored. The codes will indicate the exact problem areas. Have the trouble codes and warning light diagnosed (https://www.yourmechanic.com/services/warning-light-is-on-inspection) by a certified technician, such...
No heat and the temperature gauge goes down.
Hi there. Check the heater control valve on the heater hoses under the hood. The valve is controlled by vacuum. Check the vacuum lines and see if they have came off or split. With the engine at operating temperature, check...
Car is making a speed related sound over 20mph almost like something is dragging or rubbing. 2008 Subaru Outback
Hi there - quite likely, this is a wheel bearing noise (https://www.yourmechanic.com/article/is-it-safe-to-drive-with-a-wheel-bearing-gone). Your own diagnostics actually narrow it to this "speed-related, but not while shifting (accelerating)" - well done! The bearing might not make noise while suspended - because it...
Is there a difference between the driver side and passenger side wheel bearings on a 02 Dodge 1500
The left and right wheel bearings are the same part numbers. There is a difference in hubs for 2 wheel drive and 4 wheel drive vehicles.
Which wheels get power in an 18-wheeler?
Hi there. The term "18-wheeler" is kind of misleading. The typical heavy duty semi/trailer combination has a tire configuration like this: The front two tires are responsible for steering and braking. The next set of (8) tires on the semi-truck...
i was driving my acura integra , i had stopped at a red light i out it in 1st gear but wasn´t going nowhere like if my e brake was
Hello, thank you for writing in. The lack of transmission fluid is why you are not able to send the power from the engine to the wheels. The first step is to identify and fix the cause of the transmission...
2013 Subaru Impreza. Speedometer not working. Abs light on check engine light on and brake light on what could be going on?
Hello, thank you for writing in. The multiple lights coming on is a sign that one of the major components in the vehicle is failing. Considering the lights all seem to be related to the ABS or wheel speed sensors,...
vdc slip light comes on, car goes in limp mode nissan altima 2011
Hi There, The VDC and slip lights could potentially indicate the vehicle may be low on brake fluid or the brake pads (https://www.yourmechanic.com/services/brake-pads-replacement) may be worn resulting in the brake fluid to read lower. The low brake fluid may also...

Related articles

A Buyer’s Guide to the 2012 Buick LaCrosse
Over Over the past several years, Buick has returned to form when it comes to luxury sedans, and the 2012 Buick LaCrosse is a standout even when compared to some of the other big names in luxury. Key Features The...
The Best Used Cars to Buy That Can Be Towed Behind an RV
Summer Summer is a great time for a road trip, but often travelers like bringing all the conveniences of home along, in the form of an RV. Then they tow their car behind it – sometimes this practice is called...
How to Get Buick Dealership Certified
GM/Buick car dealerships offer automotive technician jobs to mechanics who are certified through the Universal Technical Institute (UTI) and GM.