TSB Document:

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from Mercury for this TSB. Call your local Mercury dealer's service department & ask for a copy of TSB# 8420.

Affected Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

Summary

SOME VEHICLES BUILT THROUGH 11/22/99 AND EQUIPPED WITH 4.0L SOHC ENGINE MAY EXHIBIT VARIOUS DRIVEABILITY CONDITIONS THAT LEAD TO IDLE AIR CONTROL (IAC) VALVE REPLACEMENT. *TT

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