Tempo L4-140 2.3L CFI (1985)
Engine Control Module: All Technical Service Bulletins
Engine - Stalls On Cold Transmission Engagement
Article No. 85-14-13
STALLS ENGAGEMENT - AFTER INITIAL COLD START - 2.3L HSC CFI WITH ATX TRANSMISSION
FORD 1985 TEMPO
LINCOLN-MERCURY 1985 TOPAZ
Some vehicles may have stalls on the transmission engagement if the engagement occurs more than 20 seconds after the initial cold start-up. The
processor is calibrated to add extra fuel for the first 20 seconds after cold engine start-up, to insure proper initial running of the engine. After 20 seconds
the cold start fuel strategy begins to remove the extra fuel and at the same time the Idle Control Strategy begins decreasing the idle speed from that of the
"Fast Cam" function. The two conditions (after 20 seconds) may produce a condition that results in a stall upon transmission engagement.
The customer should be advised that the recommended start-up procedure is to engage the transmission within 20 seconds after the initial cold start or to
wait until the engine temperature is stabilized (approximately 7 minutes).
CAUTION: Vehicle must never be left unattended during warm-up.
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: "INFORMATION ONLY"
