Q: My car won't accelerate over 40 mph and check engine light is on

asked by on June 14, 2017

My car won't accelerate over 40 mph and the check engine light is on

My car has 152000 miles.
My car has an automatic transmission.

Car is slow to accelerate Inspection $79.99 - $99.99 Get a Quote

Hi there. In many cases, when you have an issue with the car accelerating and the check engine light comes on, it’s caused by a mechanical problem with either a drive-system, fuel or ignition system component. The light is triggered when a sensor detects a fault somewhere in the car. It can be as minor as a fuel injector that is dirty ranging to larger, more expensive issues with the transmission. The best way to save money and ensure the right repairs are made to resolve this problem is to have a professional mobile mechanic come to your location and complete a car is slow to accelerate inspection.

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 $65/hr

What others are asking

How do I turn off incoming text message announcements on Uconnect?

If you don’t want Uconnect to let you know every time that your paired cell phone has a new text message, you can turn off the announcements. To do so, press the Uconnect phone button, which looks like a telephone...

I have 07 impala. Changing battery terminal ends . Have a wire connector clipped to positive battery cable . Whats it for ?

It would be very difficult to say what this wire is for if you don't know the service history of the vehicle. I would try to look for another connector nearby that it may connect to and try to plug...

Put one cup of Rain-X in engine coolant will it harm it? 2013 Dodge Grand Caravan

Hi there - while this may not cause overheating, it will not improve cooling as you intended. Rain-X(R) causes water to bead up on a windshield - that is - to NOT stick to it. You want the opposite in...

idler pulley

I think you mean the a/c compressor is seized and not the condenser. You will need to get an a/c compressor bypass kit and the compressor can then be removed and a pulley in its place. The problem is these...

How do I check the tire pressure?

You can check the tire pressure for each individual tire using your car’s electronic vehicle information center (EVIC). The EVIC display screen is located in the middle of the gauge cluster, and gives the driver lots of pertinent information. The...

Both R&L low beam headlights quit working simultaneously.

Hi there. Check the switch to the headlights and see if there is a break in the wiring. Check the fuses and see if there is any fuse that are blown. If the fuses are good and there is no...

Does my car need new brake pads and rotors?

Hi there: In most instances, if the brake pads have not fully worn out, the rotors will not suffer scarring or pitting which typically means the rotors need to be surfaced or replaced. However, it really depends on the damage...

I've 60K on front brake pads. They're not squealing/no metal rubbing and are at 6/32nds. Should they still be replaced?

Hello there, thanks for writing in. I'd be happy to offer my insight on this. The correct time to replace the rotors on a vehicle will depend on many factors including driving conditions and mileage. If there is no noticeable...

Power steering noise after pressure hose replaced

Anytime you blow out a major power steering hose you may have damaged the pump from lack of lubrication but also when work to replace the hose is done the system will get trapped air in the system fluid and...

Related articles

The Best Used Cars to Buy If You're a Dog Trainer
If If you are a dog trainer, you expect a lot from your vehicle. You want a ride that is safe, roomy, and of course, dog friendly, since your training operation will often mean that you need to transport the...
The Best Used Cars to Buy If You're an Archeologist
If If you are an archaeologist, you need a vehicle that will take you off the beaten path. After all, that’s where you spend a good deal of your time. And that means that you will need, ideally, an SUV...
The Best Used Cars to Buy for Dog Owners
Dog Dog owners are a special breed of drivers. When they shop for a used car they have a list of requirements that can be quite different from other drivers, which tends to make the process a bit of a...