2011 Volkswagen CC Not Accelerating

Reviewed by

Written by RepairPal Car Genius

Updated

Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

Find a Certified ShopThe largest certified network of auto repair shops

Get a Fair Price EstimateHundreds of repair estimates honored nationwide

Check for Safety RecallsUse VIN or license plate to see if your vehicle is affected

Reviewed by

Written by RepairPal Car Genius

Updated

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

Find a Certified ShopThe largest certified network of auto repair shops

Get a Fair Price EstimateHundreds of repair estimates honored nationwide

Check for Safety RecallsUse VIN or license plate to see if your vehicle is affected

Terms·Privacy·Cookie Policy

Verifiable Consumer Access and Deletion Request Form

Reviewed by

Written by RepairPal Car Genius

Updated

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

Find a Certified ShopThe largest certified network of auto repair shops

Get a Fair Price EstimateHundreds of repair estimates honored nationwide

Check for Safety RecallsUse VIN or license plate to see if your vehicle is affected

Popping sounds from the rear of the vehicle may be heard moments after starting the engine, or when slowing to a stop. This noise is from the leak detection pump filling the fuel tank with air, and releasing to retest the system when it finds a fault. The sequence of faults identifying this issue are as follows:

Succession of loud pops from rear of vehicle

Pops go away, and fuel economy decreases

Check engine light illuminates

OBD trouble code P2404 and/or P0441is stored

Engine will not start after refueling (must crank for over 30 seconds)

Vibration when slowing to a stop

The cause is a valve which is mounted on the front of the intake manifold, commonly called the N80 valve, or EVAP system purge valve. The valve is designed to open under specific circumstances, but a worn valve will remain open at all times, preventing the pressurization of the fuel tank. Correction of the issue is to replace the N80 valve with the latest revision.