Affected Component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

Date Published

JUN 11, 2001

NHTSA TSB #

620067

TSB Document

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

You can still get the detailed info from Jeep for this TSB. Call your local Jeep dealer's service department & ask for a copy of TSB# 1801301.

Summary

SOME VEHICLE ENGINES MAY EXHIBIT A ROUGH IDLE AND / OR MALFUNCTION INDICATOR LAMP (MIL) LIGHT ON CONDITION UPON INITIAL START-UP AFTER A COLD SOAK WHEN TEMPERATURES ARE BELOW 50 DEGREES F (10 DEGREES C). THIS BULLETIN INVOLVES SELECTIVELY ERASING AND REPROGRAMMING THE POWERTRAIN CONTROL MODULE (PCM) WITH NEW SOFTWARE. *TT