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Service bulletin TSB-143REV1

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 id10056507
Published by NHTSA2014-12-17
Manufacturer's numberTSB-143REV1
Manufacturer's date2014-09-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS; ENGINE AND ENGINE COOLING:ENGINE; EQUIPMENT

NHTSA's summary

KIA: INFORMATION ON REPLACING CRANKSHAFT PULLEY AND CRANKSHAFT BOLT, ON SOME VEHICLES, THAT ARE EXHIBITING AN OIL LEAK OR HAVE ENGINE NOISES COMING FROM FRONT CRANKSHAFT PULLEY DUE TO EXCESSIVE MATERIAL ON TIP OF CRANKSHAFT. MODEL 2015 OPTIMA, SORENTO. *PE UPDATED 03/27/15 *LJ

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, Equipment and accessories, Drive belts

Vehicles listed
KIA OPTIMA2015
KIA SORENTO2015

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
TSB-ENG143R12017-08-02. Service bulletin. TSB: SERVICE ACTION: ENGINE CRANKSHAFT PULLEY AND BOLT REPLACEMENT (SA170) - This bulletin provides the information to replace the crankshaft pulley and crankshaft bolt on some 2015MY Optima (QF) and 2015MY Sorento (XMa) vehicles, produced from June 30, 2014 through July 14, 2014 and equipped with 2.4L Theta engines.