Skip the auto shop - Our mechanics make house calls

Q: My car shakes sometimes at a stop light, reduced engine peeformance and just recently went into limp mode also check engine light

asked by on

Was just wondering what that could mean with those symptoms, thank you

My car has 150000 miles.
My car has an automatic transmission.

A: It's hard to tell without doing some fu...

It's hard to tell without doing some further testing. This sounds like a misfire. A misfire can be caused by several components. It would explain the "limp mode", the shaking, and the Check Engine Light.

Misfires are caused by an improper mix of fuel and air, or a bad spark. The first thing to do is run a scan on the system and see what codes were set to make the engine light come on. This will hopefully narrow down the issues, or at least which cylinder is misfiring. Bad spark plugs, fuel filter, and related components are usually the cause.

If you'd like to have this repaired, consider YourMechanic, as one of our mobile technicians can come diagnose the Check Engine Light firsthand and help you make the necessary repairs.

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: Cannot shift into overdrive

On the SC300, when the shifter is in the 3-D position if the shifter is to the right, then the over shift function is enabled. Once the engine reaches a combination of speed and load the transmission will automatically shift...

Q: Acclerator pedal malfunctioned, misfired, service engine and loud noise

The accelerator pedal position sensor is a common failure item as well the the throttle position sensor in the throttle body assembly. Either sensor can cause similar performance concerns. The cause of these problems usually result in a diagnostic code...

Q: Should your repair or replace stabilizer links on a 2005 Ford Freestar

Typically if you have bad stabilizer links then they should be replaced as an assembly. In most cases it is the bushings that fail, but the links that they mount to become distorted over time. To ensure that they last...

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...