Colt Vista 4WD L4-1997cc 2.0L SOHC (1985)
Auxiliary Air Valve (Idle Speed): Technical Service Bulletins
Idle Speed Control Servo - Service Manual Revision
Models
1985-1986 NF45Z (Colt Vista)
Subject
Idle Speed Control Servo - Service Manual Revision
Index
FUEL
Date
April 21, 1987
No.
14-01-87 REVISION A P-1418
This bulletin supersedes Technical Service Bulletin 14-01-87, which should be removed from your files. An error was made in the red type printing used
to highlight all revisions.
Please make the revisions as noted below in bold, red type:
Service Manual
Publication No.
Pages
1985 Colt Vista
81-270-5012
14-26
1986 Colt Vista
81-270-6012
14-33
Idle Speed Control (ISC) Servo
1.
Disconnect connector of ISC servo.
2.
Check motor coil for continuity with a circuit tester (ohm range) between terminals "1" and "5". If resistance is 0 ohm or abnormally large, open or
short circuit is in motor coil. Therefore, replace ISC servo assembly.
ISC servo motor resistance . . . 5-35 ohm at 20~C (68~F)
3.
Make sure that there is no continuity between terminals "1" or "5" and carburetor float chamber cover. If there is continuity, short circuit is in coil.
Therefore, replace ISC servo assembly.
POLICY:
Information only
