Saturn Aura 2007 — technical service bulletin
Bulletin PIP4176A · NHTSA communication 10154283 · issued Feb 8, 2019
Technical service bulletin
communication type
Engine and Engine Cooling
component
2007
model years
1
vehicle entries
Official summary
This Preliminary Information communication advises the technician that the When the engine is cold, a light rattle noise may be heard from under the hood at 1,100 - 1,200 RPM. This noise is a result of normal drive belt and tensioner resonance that may be amplified on a cold engine. As a result, this noise will be isolated to the drive belt tensioner area. This noise is most noticeable on a cold engine and typically, is not noticeable on a warm engine. If this concern is experienced, it is currently considered a normal operating characteristic of the hybrid drive belt tensioner system and syst
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.