Diesel Data: Automotive Repair

Idle Speed Control Servo - Service Manual Revision

87chrysler11

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