Caravan V6-181 3.0L SOHC VIN 3 FI (1987)
Battery Cable: All Technical Service Bulletins
Battery Cable - Buck, Surge, & Spark Knock
Models
1986-1987 Ram Van/Wagon Equipped With ESA
Subject
Buck, Surge, & Spark Knock
Index
DRIVEABILITY
Date
December 1, 1986
No.
18-38-86
P-4314
SYMPTOM/CONDITION
These vehicles may exhibit a surge, buck, and spark knock under acceleration and at road load cruise. The condition will be worse anytime the alternator
is subjected to heavy electrical loads.
NOTE:
THIS CONDITION PRIMARILY AFFECTS VEHICLES WITH A 114 AMP ALTERNATOR. HOWEVER, VEHICLES WITH
OTHER ALTERNATOR APPLICATIONS MAY ALSO BE AFFECTED AND SHOULD BE CHECKED AS FOLLOWS IF THEY
EXHIBIT THE ABOVE SYMPTOMS.
DIAGNOSIS
Road test vehicle to verify condition. If the condition is reduced when the alternator field leads have been disconnected, install the driveability kit listed
below.
PARTS REQUIRED
Driveability Kit PN 4419441
Consists of:
1
Negative Battery Cable
PN 4362679
1
Screw (12-24 x 5/8" long)
PN 6033516
4
Tie Wraps
PN 6015756
1
Authorized Modification Label
PN 4275086
REPAIR PROCEDURE
This repair involves replacement of the negative battery cable with one which incorporates an alternator ground circuit. This new alternator ground
effectively cancels the magnetic field created by the alternator output wire.
