Colt Vista 4WD L4-1997cc 2.0L SOHC (1985)
Ignition Timing: All Technical Service Bulletins
Carburetion/Ignition - Warm Engine Surge
Models
1984 & 1985 Two Wheel Drive Colt Vista Manual & Automatic Transmission All Emission Markets
Subject
Warm Surge
Index
DRIVEABILITY
Date
October 14, 1985
No..
18-27-85 REVISION A
P-3800-C
This bulletin supersedes Technical Service Bulletin #18-27-85 which should be removed from your files. The revision includes the addition of an
Authorized Modification Label and the model application as two wheel drive only.
SYMPTOM/CONDITION
Subject models may exhibit an acceleration surge and steady state surge during engine warm-up. This surge will be less noticeable, but may be still
present when the vehicle reaches normal operating temperature. This condition will be more pronounced in cold ambients.
PARTS REQUIRED
Manual Transmission
1 Primary Main Air Bleed Jet
PN MD606848
1 Clutch Disc
PN MD714707
Must be ordered separately:
1 Authorized Modification Label
PN 4275086
Automatic Transmission
1 Primary Air Bleed Jet
PN MD606848
Must be ordered separately:
1 Authorized Modification Label
PN 4275086
REPAIR PROCEDURES
Manual Transmission
1.
Reset basic timing from 5~ to 8~ BTDC.
2.
Remove carburetor air cleaner assembly. Cover carburetor secondary venturi to prevent air bleed jet from falling into engine.
