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Service bulletin 4326

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id629024
Published by NHTSA2002-03-26
Manufacturer's number4326
Manufacturer's date2002-01-24
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE

NHTSA's summary

SOME VEHICLES MAY EXHIBIT OSCILLATING RPM AT CRUISING SPEEDS WITH A STEADY THROTTLE, DESCRIBED AS A SURGE FEELING WHILE ON THE HIGHWAY, OR THE TACHOMETER NEEDLE MAY FLUCTUATE SLIGHTLY. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Vehicles listed
VOLVO S802001

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
04V4510002004-09-13. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
35526.1.82026-05-14. Service bulletin. This is a Technical Journal: Text plus 2 PDFs and 1 .PNG Oil Consumption test. Perform the test. Follow service procedure
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CBR-22012022-09-08. Service bulletin. Engine Control Module (EMS) Software (MSW) Information – August 2022; Improvement List (Change Log) - US21+OBD22 (13L VGT, TC) And US17+OBD22 (11L) Emissions
TJ21965.7.0-20192019-12-09. Service bulletin. This is a Technical Journal: Oil in cooling system. New cleaning method developed.
TJ21965-5-0-20192019-04-08. Service bulletin. This is a Technical Journal: Oil in cooling system. New cleaning method developed.
TJ21965-5-0-20192019-04-01. Service bulletin. This is a Technical Journal: Oil in cooling system. New cleaning method developed.
SMB22-2062017-08-03. Service bulletin. All new Volvo engines leave the factory filled with Castrol EDGE Professional as an integral part of their delivery of high performance. Castrol EDGE Professional?s outstanding performance has made it the oil of choice for Volvo and is the only Volvo recommended engine oil.
46-132008-04-17. Service bulletin. 5 CYLINDER ANGLE GEAR LEAKAGE AND RESEALING. ON ALL WHEEL DRIVE MODELS. *NJ UPDATED 6/5/08. *NJ
25149C2006-04-26. Service bulletin. CLEANING THE CRANKCASE VENTILATION. *AK
25149B2006-04-26. Service bulletin. CHECKING CRANKCASE VENTILATION SYSTEM. *AK
1492006-01-18. Service bulletin. WARRANTY COVERAGE SHOULD A CUSTOMER EPXERIENCE A DEFECT WIT THE ETM SYSTEM BEYOND THE TERMS OF THE NORMAL NEW CAR WARRANTY. *TT TROUBLESHOOTING ELECTRONIC THROTTLE SYSTEM (ETS). *TT CHECKING CRANKCASE VENTILATION SYSTEM. *TT CLEANING THE CRANKCASE VENTILATION AND ELECTRONIC THROTTLE MODULE (ETM). *TT ELECTRONIC THROTTLE MODULE (ETM) REPLACEMENT. *TT