Skip the auto shop - Our mechanics make house calls

Q: Traction warning on, unexpected deceleration

asked by on

My car has an automatic transmission. It has gone around 117,000 miles. The following problems I've been having with the car occur intermittently. On one occasion while I was driving, the instrument panel in my car started showing the traction warning on. Then, there were some clicking sounds and the car decelerated by itself. When the traction control is on, the car would begin to stall. Also, while I was applying the gas pedal to prevent the car from staling out, the car would suddenly surge. What could be causing these issues?

It definitely sounds like there is an issue either with the engine management or traction control system. Fault codes need to be read out to see if there are any underlying issues causing these malfunctions. One common input to both systems is the MAF sensor.

There is a TSB that discusses contamination of the MAF can affect not only the engine management system but also have adverse effects on both the traction control and transmission control systems. So the first place to start is to have the fault codes read out. You may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the tools and expertise to interrogate these systems, diagnose the issue, and repair the system to prevent these malfunction from occurring in the future.

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: Loss of power after driving for about a mile. The car won't drive over 30 mph.

Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car's ECU. When the ECU...

Q: 02 suburban sercurity light and battery light on while driving

There is a loose and intermittent connection but the question of course is "where". Occasionally, running the vehicle with a real time scanner attached, looking at charging system output, will yield the necessary clues. On your particular issue, sometimes the...

Q: 2004 Nissan Sentra front brakes grinding. What would it cost to replace the pads?

Hi There, As you know, the grinding sound is definitely an indication that the brake pads have worn down to the liners and are now grinding on the rotors. Please schedule an appointment with one of our experts to come...

Related articles

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...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.