ZAF B FIELD REMEDY:2081 whistling noise from engine.

Whistling noise from engine.Vauxhall field remedy2081 (courtesy of Andromeda411)

Field Remedy:2081
Subject:Engine Z16XEP - Whistling noise from engine compartmentModels:Enginesoption:Astra-H 2005...2006,Zafira-B 2006,Meriva 2006Z16XEP,Z16XEP,Z16XEPComplaint:Whistling noise from engine compartment between 2100 - 2700 rpm under part load.Cause:The whistling noise is caused by intake air flowing past the entrance hole of the crankcase ventilation at certain throttle flap opening angles.Production:Improved throttle unit entered production. Engine Breakpoint: Z16XEP 20HP5955.
Remedy:

replace the throttle body according Service Information document "Replace throttle valve module". Use a new sealing.For vehicles Astra-H and Zafira-B the blowby tube partnumber: 55559255 / cataloguenumber: 56 56 137 has to be used. Improved throttle units with new partnumber: 93187697 / catalognumber: 58 25 247 are available via P&A. FunctionalGroup:J - EngineComplaint Group:14 - Noises or VibrationsTrouble Code:None

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