Chevrolet Silverado 2004 — technical service bulletin
Bulletin 02092 · NHTSA communication 10007754 · issued Jan 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004
model years
2
vehicle entries
Official summary
Gurgle noise may be heard from the engine coolant compartment on trucks built with rpo hp2 parallel hybrid system. *tt
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.