Mountaineer AWD V6-4.0L VIN K Flex Fuel (2003)
Technical Service Bulletin # 03-3-5
Date: 030217
Engine Controls - No Start/Hard Start/Rough Idle
Article No.
03-3-5
02/17/03
DRIVEABILITY - IDLE AIR CONTROL (IAC) VALVE
DIAGNOSTIC SERVICE TIPS
FORD:
2000-2003 TAURUS
2002 THUNDERBIRD
2000-2003 EXPLORER, RANGER
2001-2003 EXPLORER SPORT TRAC, EXPLORER SPORT
LINCOLN:
2000-2002 LS
MERCURY:
2000-2003 SABLE, MOUNTAINEER
ISSUE
Some vehicles, may exhibit drivability conditions.
These may include:
^
No start Difficult to start Stall
^
Low idle
^
Rough idle
^
High idle
^
Hesitation/surge while accelerating or at steady speed
These conditions may be intermittent with no Diagnostic Trouble Codes (DTC) and no Malfunction Indicator Lamp (MIL). In some cases DTC and MIL
may be evident.
ACTION
Trouble cannot be identified with 95% of returned Idle Air Control (IAC) valves. The following procedure is supplemental information to normal
diagnostics to facilitate accurate identification of malfunctioning valves. These symptoms would include engine stall, hard start, crank/no start, idling
problems, and Idle Speed Control System related DTC's.
