Q: Slow speed increase, check engine light on

asked by on June 23, 2016

I recently filled the gas tank with Premium and continued driving the car. Several minutes later, the dashboard showed the check engine light on. I tried to accelerate but it seemed slow to gather speed. The speed just wouldn't increase although the RPM was high. It won't go over 55 mph and it's as if there is no shifting to higher gears. What could be the underlying cause?

Car is slow to accelerate Inspection $79.99 - $89.99 Get a Quote

Hello. If this occurred right after getting gas then you may have gotten contaminated fuel. If it has some water or some diesel in it then this will occur. Some of the time a fuel pump can fail after getting gas if it was at a very low level. I typically scan the computer for codes first. This would tell me if there is something else going on. Then I would check the condition of the fuel and check the fuel pressure to see where the problem is. If you need to have this fixed, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose your car’s acceleration problems.

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

What others are asking

2005 Pontiac G6 not going into gear

There are a couple of possibilities for this concern. The most common issue is a faulty transmission range switch. If the coded output from the range switch is received incorrectly by the PCM you will get incorrect operation of the...

What happens regarding VIN # when engine is replaced?

Firstly, I believe that a reclaimed engine is an engine from a vehicle that has been salvaged but was rear-ended or something. This means that the engine was unaffected by the accident and is therefore in good running condition. As...

misfire under load

Hello. Engine misfires can be caused by many things. If the issue occurs under heavy load it may be possible that the vehicle requires a tune up. If the spark plugs are the originals, it may be possible that they...

Getting troubles codes P01217, P0300, and P0300P

It sounds like the vehicle is experiencing a few different problems that will probably need to be addressed separately. It sounds to me like there is probably an electrical short somewhere on the vehicle that is draining the battery. This...

Car locked up

Your vehicle likely lost steering and braking because your engine shut down. You lose all power steering and braking when your engine loses power. As for the warning lights in the dash, I would recommend scanning your vehicles computer with...

I have a 2009 Maxima is dead,have a replacement key and can't unlock it at all

Hi Gabriel. Thanks for contacting us today. I'm not quite clear on the issue you're having. If the key you currently have will not open the vehicle, then you'll need to call a locksmith to open the car or head...

Jerking when accelerating (after slowing down).

Hi there. From my experience with this vehicle the issue is almost always a failure in the throttle body. It is very common for the throttle body to have an intermittent failure and for it to run like this. Most...

p0011 code,check engine light one, changed bank 1 vvt solenoid and check engine light still on?

The P0011 code is typically caused by oil issues with the car. I would particularly make sure the engine oil level is not low. The VVT solenoid relies on proper oil levels to do their job. If they don't have...

Fuel Pump replaced now car won't start 2007 Saab 9-3

Hi there - the story certainly doesn't make sense. Excessive fuel pressure won't "ruin an injector", although it will certainly leak and cause high fuel consumption, as well as a rough idle and rough running. Check for problem codes, whether...

Related articles

A Buyer’s Guide to the 2012 Infiniti FX
There’s There’s just something unmistakable about the overall design and aesthetics of the 2012 Infiniti FX. With sleek lines and a classic feel, some might think this SUV is all about looks. However, it also packs exceptional performance and plenty...
How Can I Keep My Fuel System Clean?
Proper Proper maintenance of the fuel system is crucial for consistent long-term performance of a vehicle. The most easily clogged parts of the fuel system are the fuel injectors themselves. There are a number of ways this can happen: ...
How Long Does a Fuel Pump Shut Off Switch Last?
Being Being involved in an accident can be quite scary and dangerous. There are a number of safety mechanisms that are built into a car that will help to reduce the danger that comes with being involved in an accident....