Skip the auto shop - Our mechanics make house calls

Q: Car will not drive over 30 mph

asked by on

My car will not drive over 30 mph.

A: The engines computer could be in a “limp” m...

The engines computer could be in a “limp” mode. It is a reduced power mode because of a trouble code(s) set in the computer. It does this to prevent further damage. Any type of misfire code, a major sensor, or transmission code could cause this. The only way to see what is causing this would be to scan the computer. If you would like this repaired, consider YourMechanic -- our mechanics provide diagnostics at your home or office.

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・Save up to 30%

Get a quote

What others are asking

Q: battery not charging light came on

I would still recommend getting the alternator and battery tested. The most likely cause would be the alternator. The alternator can have an intermittent failure that causes it to charge and not charge randomly. If this turns out to be...

Q: Shift cable broken

Unfortunately, the most common problem to that symptom is the automatic transmission needs replacing according to our database. I would recommend taking the car to a transmission specialist and have them look at the vehicle.

Q: Whining whistling in TBI area

Hello. I believe that you are experiencing a problem with the idle air control valve. It probably has built up some carbon. When the engine warms up it requires less air at idle so this valve closes a little more...

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 Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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.