Skip the auto shop - Our mechanics make house calls

Q: Engine problems, sluggish acceleration, dash lights on

asked by on

Hello. I've experienced some acceleration and idling problems with my car, for which I took it to the dealer but these problems weren't solved. The engine is idling very roughly and the car is slow to accelerate. The dashboard shows the following lights illuminated--engine management light, stability control light and engine symbol. That time at the dealer's, the codes were reset and it was all okay until the following time I drove it. After about half an hour of driving it with a few stops, the issue happened yet again. The engine worked rougly, there was a delay in acceleration and all the lights that were illuminated on the dashboard came on again. What could be cuasing these problems? Thanks.

A: It would help to know what the codes were t...

It would help to know what the codes were that the dealer turned off and are most likely back. If they were misfire, antilock brake, or engine problem codes they will all help in the diagnosis of the problem you are having. If you have a rough running engine then you may have a fouling spark plug or ignition system issues. If you do not take it back to the dealer then have a certified mechanic check your acceleration problem. From there, the necessary steps and checks can be made in order to accurately fix your car.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: I started the car and after two minutes the car stalled

Hi there. There could be multiple issues that are causing the engine to stall on your car. The most common source of this type of engine trouble is due to a lack of fuel or air being distributed to the...

Q: P1510 trouble code is showing up. Cleaned the idle control valve but it won't start.

The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine. This valve is controlled by the vehicle's computer which will adjust idle speed based upon other measurements such...

Q: Engine running rough

The vehicle requires a diagnostic to examine multiple things. Fuel quality, fuel pressure, vacuum leaks, basic ignition and timing tests would be a good start. A qualified technician, such as one from YourMechanic can assist you in diagnosis and repair....

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 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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...