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Service bulletin 9966

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 id603172
Published by NHTSA1999-02-05
Manufacturer's number9966
Manufacturer's date1998-12-09
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

SUBJECT ON KINKED TRANSMISSION COOLER FLEX LINE. *YC

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

Transmission and driveline, Automatic transmission

Vehicles listed
JEEP WRANGLER1999

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
08015052005-04-26. Service bulletin. POWERTRAIN CONTROL MODULE INITIALIZATION. *SC
21009032003-10-23. Service bulletin. AUTOMATIC TRANSMISSION DIAGNOSTIC TEARDOWN PROCEDURE. VARIOUS MODELS INCLUDING THE 2004 RAM TRUCK, DURANGO, SEBRING CONVERTIBLE, CHEROKEE, VISION, NEON, AND VOYAGER. *TT *SC
21006012001-10-03. Service bulletin. AUTOMATIC TRANSMISSION FLUID USAGE ATF+4. *TT *MJ
1812991999-09-17. Service bulletin. THIS BULLETIN EXPLAINS THE OPERATION AND APPLICATION OF THE LEAK DETECTION PUMP (LDP) MONITOR TEST. *TT
2108991999-05-21. Service bulletin. VEHICLES EXHIBITING BUZZ, WHINING, OR MOANING LIKE NOISE FROM COLD TRANSMISSION WHEN REVERSE GEAR IS SELECTED. *TT
1846981999-02-03. Service bulletin. SOME VEHICLES MAY EXHIBIT AN IDLE UNDERSHOOT OR DRIVEWAY DIE OUT WHEN THE TRANSMISSION IS PLACED FROM PARK OR NEUTRAL INTO DRIVE OR REVERSE. *AK
2109981998-10-26. Service bulletin. A THUMPING OR CREAKING NOISE MAY BE HEARD COMING FROM THE TRANSMISSION TUNNEL AREA ON ACCELERATION OR WHILE DRIVING OVER BUMPY ROADS. *YC