Rattling Hyundai Sonata
Some 2011 Hyundai Sonata vehicles equipped with a 2.4L engine may exhibit a rattle sound from the driver’s side of the engine compartment. This can be observed during certain engine operating speed ranges from 1600-2000 rpm or during light acceleration.
The rattle may be caused by the plastic fuel tube holder vibrating against the engine compartment bulkhead.
1. Open the hood and locate the fuel tube holder, which is attached to the engine compartment bulkhead (firewall). Confirm that the hook on the clip is loose and contacts the metal firewall. You may see a body paint rub mark at the contact point.
2. Mark the location of the fuel tubes directly above the holder with chalk or marker. Placing a position reference mark on the fuel tubes prior to removing the old part is recommended for placement of the new fuel tube holder.3. Remove the old fuel tube holder from the rail using a trim removal tool and replace the holder with updated P/N 31356-3S000. Push the new fuel tube holder firmly over the mounting stud to ensure complete seating.
Note the approximate location of the fuel tube holder (see arrow in left photo). The photo on the right shows the holder.
Confirm that the hook on the clip has become loose and is rubbing the firewall.
Place a reference mark as shown before removal. Once the new holder is installed, it will be difficult to relocate to the original location.