TSB
93-23-6 |
- EGO SENSORS - SILICONE CONTAMINATION
- ENGINE - SEALANTS, LOW VOLATILITY SILICONE REQUIRED
- EXHAUST SYSTEM - SILICONE CONTAMINATION OF EXHAUST GAS OXYGEN (EGO) SENSORS
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| Publication Date: NOVEMBER 10, 1993 |
FORD: | 1984-1986 LTD
1984-1988 EXP
1984-1994 CROWN VICTORIA, ESCORT, MUSTANG, TEMPO, THUNDERBIRD
1986-1994 TAURUS
1988-1993 FESTIVA
1989-1994 PROBE
1994 ASPIRE |
LINCOLN-MERCURY: | 1984-1986 CAPRI, MARQUIS
1984-1987 LYNX
1984-1992 MARK VII
1984-1994 CONTINENTAL, COUGAR, GRAND MARQUIS, TOPAZ, TOWN CAR
1986-1994 SABLE
1988-1989 TRACER
1991-1994 CAPRI, TRACER
1993-1994 MARK VIII |
MERKUR: | 1985-1989 XR4TI
1988-1989 SCORPIO |
LIGHT TRUCK: | 1983-1994 RANGER
1984-1990 BRONCO II
1984-1994 BRONCO, ECONOLINE, F-150-350 SERIES
1986-1994 AEROSTAR
1988-1994 F-47, F-53
1991-1994 EXPLORER
1993-1994 VILLAGER |
This TSB article is being republished in its entirety to update model applicability and to revise the part number of the Low Volatility Sealant. ISSUE:
EGO sensors can be contaminated if volatile types of silicone are used when servicing the engine. Volatile silicones can migrate throughout the system during the first one hundred hours of service. They are commonly found in liquid "silicone rubber" sealants and gasket material. These products are commonly sold in tubes and caulking-type cartridges.
ACTION:
When service is performed on the engine, only use new low volatility silicone sealant (F1AZ-19562-A) where specified. Also replace the contaminated EGO sensor if required.
 | CAUTION: | DO NOT SUBSTITUTE CONVENTIONAL SILICONE RUBBER SEALANTS WHEN LOW VOLATILITY SILICONE SEALANT IS SPECIFIED. |
| PART NUMBER |
PART NAME |
CLASS |
| F1AZ-19562-A |
Low Volatility RTV Sealant |
B |
OTHER APPLICABLE ARTICLES:NONE
SUPERSEDES:89-14-5
WARRANTY STATUS:Information Only
OASIS CODES:403000, 490000, 499000
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