Q: Car independently accelerates - 2013 Porsche Panamera

asked by on

My car independently and unexpectedly accelerates. It is intermittent and has occurred approximately four times. I have been to a dealer, but they could not find any problems with my car. My car now has 32,000 miles. Each time this occurred, I immediately hit the brake pedal in order to avoid an accident. This is only happening at low speeds or when the engine is idling and I have my foot off the brake. In your expertise, what is causing this and how can I get it fixed?

Make sure to stay in touch with Porsche on this issue. It is possible the Idle Air Control valve, which "adjusts" engine idle speed, is faulty, or is receiving an incorrect signal to raise the engine RPM (say for air conditioning load). The result would be an increase in engine speed. If you would like a certified technician from YourMechanic can come to your home or office, diagnose the issue and replace the Idle Air Control valve.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car independently accelerates - 2013 Porsche Panamera

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 own a 2006 Cayman S. I brought it into the dealer for some concerns - please help me decide what to do

Hello - tire "speed range ratings" like "N" are for sustained speed at a specified load. If you participate in "track days" or other high-speed driving events, you would be wise to stick with an equivalent "N" rated tire, whether...

Q: Tapping on acceleration Honda hybrid.

Hi there. The noise could be from the lifters not filling up with engine oil until the engine is warm or the pistons have too much clearance causing a condition called "piston slap". Check to see what brand of engine...

Q: New car that is always lighting up ‘check engine’

Hello, thanks for writing in about this issue. No, your car is not a lemon! The Check Engine Light (CEL) is trigged by the engine control unit when it detects a fault with any engine sensor or a...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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.