Engine - Squealing Noise At Engine Start
Technical JournalTITLE:
Squealing Noise at Engine Start
CAR MARKET:
United States
ISSUING DEPARTMENT:
Technical Service
REF NO:
TJ 26277
ISSUE DATE:
YEAR
2012
MONTH
09
DAY
27
PARTNER:
3 US 7510 Volvo Cars North America
FUNC DESC:
Miscellaneous
FUNC GROUP:
2190
"Fixed Right - First Time"
Attachment
Vehicle Type
CSC Customer Symptom Codes
DTC Diagnostic Trouble Codes
Text
Note! If using a printed copy of this Technical Journal, first check for the latest online version.
NOTE! THIS DOCUMENT SUPERSEDES THE PREVIOUS TECHNICAL JOURNAL 26277 DATED 05-09-2012. Upper chassis limits have been added to the TJ header. PLEASE UPDATE YOUR FILES.
DESCRIPTION:
A loud squealing noise may occur from the engine compartment when the engine is started cold. Analysis has found the root cause to be misalignment of the alternator. Consequently the alternator pulley
will also end up misaligned in relation to the other pulleys for the auxiliary belt.
PRODUCT MODIFICATION:
Secured the correct tightening order of the alternator screws in production during structure week 2012W22.
SERVICE:
If squealing noise is present, do as follow:
- Remove the auxiliary belt (not the A/C belt) according to VIDA
- Loosen, but do not remove, all three alternator screws
- Tighten upper screw (M8, 24Nm) first, see #1 in Photo 1 of the attachment
- Tighten lower 2 screws (M8, 24Nm), see #2 and #3 in Photo 1 of the attachment
- Install a new auxiliary belt, PN 30777431
VSTG OPERATION NUMBER:
Operation number 21581-2 - Auxiliaries belt remove - install/replace - See VSTG
Operation number 99400-2 - General check/adjust acc to Technical Journal- 0.1 hrs
To view TJ attachment continue: