Field Remedy: 2773
| Subject: |
Engine A12/14XEL/R/T Cylinder head cover -
Whistling noise from engine |
| Models: |
Engines: |
Option: |
| Corsa-D 2010...2011,Astra-J
2010...2011,Meriva-B 2010...2011 |
A12XEL| A12XER| A14XEL| A14XER,A14NEL|
A14NET| A14XEL| A14XER,A14NEL| A14NET| A14XER |
|
| Complaint: |
Customer complain about a whistling noise
from engine. Sometimes DTC P0171 is set in ECU. |
| Cause: |
Cracked air pressure membrane inside the
cylinder head cover causes sucking of excess air. |
| Production: |
Improved valve covers has been introduced as
of 21.02.2011 (engine 19WN7447). |
Remedy:
In case of customer complaint, check during idle if the engine
sucks air in from the air pressure membrane.
This could be visually confirmed by positioning a smoke source
near the membrane housing opening (pic. I, arrow ), or with a change
in the engine noise after covering the opening.
If turbo engines will leak oil from the pressure regulation
valve, see also TSB 2774.
| FunctionalGroup: |
J - Engine |
| Complaint Group: |
14 - Noises or Vibrations |
| Trouble Code: |
P0171 |
|
