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Service bulletin 98B18

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 id601219
Published by NHTSA1998-07-08
Manufacturer's number98B18
Manufacturer's date1998-04-01
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

OWNER NOTIFICATION PROGRAM 98B18- COOLING SYSTEM BY-PASS KIT INSTALLATION. *AK

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, Cooling system

Vehicles listed
FORD TAURUS1996, 1997
MERCURY SABLE1996, 1997

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
011162001-10-22. Service bulletin. SOME VEHICLES MAY EXHIBIT COOLING SYSTEM CONDITIONS SUCH CONTAMINATED / CORRODED COOLANT; LEAKING / DISCOLORED COOLANT OVERFLOW BOTTLES; VIBRATION FROM ENGINE; LEAKING HEATER CORE; COOLANT OVERFLOW; HIGH TEMPERATURE GAUGE READINGS, ETC. *TT
98-47242000-11-02. Service bulletin. CONTAMINATED/CORRODED COOLANT, HIGH OR FLUCTUATING TEMPERATURE GAUGE. *AK
98B272000-04-04. Service bulletin. COOLANT BY-PASS KIT REPLACEMENT ON CERTAIN TAURUS VEHICLES. ENGINES PREVIOUSLY REPAIRED WITH 98B18 SERVICE BY-PASS KIT.
98B232000-04-04. Service bulletin. THE OWNER NOTIFICATION PROGRAM 98B23 CONTAINED INCORRECT LABOR ALLOWANCE AND COOLANT PART NUMBER INFORMATION
98B23S11999-05-17. Service bulletin. INSTALLATION OF COOLING SYSTEM BY-PASS KIT. *TT
9803051998-09-23. Service bulletin. VEHICLES EXPERIENCING COOLANT ODOR, COOLANT OVERFLOW, HIGH OR FLUCTUATING TEMP GAUGE READINGS, BLOWN OR LEAKING HOSES, BLOWN HEAD GASKET, FAILED ENGINE, AND LACK OF HEAT. *YC
BC02529702011997-06-27. Service bulletin. UNEVEN IDLE RPM, STALL, ROUGH RUNNING, SURGE, AND/OR SPARK KNOCK WHEN THE COOLING FANS COME ON AT A IDLE. *JD