Service bulletin NTB08-051A

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)
Type	Service bulletin
NHTSA id	10190198
Published by NHTSA	2021-04-13
Manufacturer's number	NTB08-051A
Manufacturer's date	2021-03-24
NHTSA component	ENGINE AND ENGINE COOLING

NHTSA's summary

VOLUNTARY SERVICE CAMPAIGN 2008 ALTIMA SEDAN DRIVE BELT TENSIONER BOLTS (2.5L ENGINE) Service Campaign ID # PB072 is no longer active. • Repair orders opened after this bulletin's published date are no longer eligible for reimbursement under Campaign ID # PB072. • Discard all previous versions of NTB08-051.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
NISSAN ALTIMA	2008

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

Other bulletins for the same vehicles and component
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NTB08001B	2021-05-10. Service bulletin. see NTB13-056 INTRODUCTION Nissan has determined that on some 2007 ? 2008 Altima Sedans and 2008 Altima Coupes equipped with the 2.5 liter four cylinder engines, a rattle noise may occur around the exhaust manifold heat shield during start up or at low engine speeds (approximately 1600 RPM). The symptom does not affect the operation of the engine or the vehicle. To address this issue, Nissan is conducting a Voluntary Service Campaign to replace the lower exhaust manifold heat shield. IDENTIFICATION NUMBER Nissan has assigned identification number PB053 to this campaign. This number must appear on all communications and documentation of any nature dealing with this campaign. See this bulletin for further detail.
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PB072 2008 Altim	2021-05-08. Service bulletin. Expiration Notification – Drive Belt Tensioner Bolts *** Campaign Summary* In 2008, Nissan launched a Voluntary Service Campaign on certain 2008 Altima (L32) vehicles, equipped with 4-cylinder 2.5L engine, to re-torque the engine accessory drive belt tensioner bolts to specification. During manufacturing, the engine accessory drive belt tensioner bolts may not have been torqued to specification. This may affect performance of certain engine accessories on the vehicle, including the air conditioning compressor, alternator and the water pump. Parts specified for this campaign are no longer available through Nissan. This customer service campaign and customer reimbursement for these repairs are no longer available. * What Dealers Should Do *** 1. Service Comm will deactivate PB072 on any unrepaired VINs on March 25, 2021. No further dealer action is required.
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