Mini Ram Van L4-156 2.6L SOHC VIN G 2-bbl (1984)
Air Cleaner Housing: Customer Interest
Carburetor - Lack of Power In Cold Weather
Models
1984 Through 1987 Caravan, Voyager & Mini Ram Van With 2.6L Engine
Subject
Carburetor Icing
Index
DRIVEABILITY
Date
February 9, 1987
No..
18-05-87 (C4-18)
P-0337
This bulletin supersedes Technical Service Bulletin 18-46-86, dated 11-10-86 which should be removed from your files. The repair procedure has been
updated and a part number corrected.
SYMPTOM/CONDITION
Lack of power when at highway speed during cool or cold weather. Lower temperatures, along with high humidity, will aggravate this condition.
DIAGNOSIS
This condition can be diagnosed by driving the vehicle at highway speeds in ambient temperatures near freezing. The interior of the air cleaner box,
element, and induction hoses will be coated with condensate. In extreme cold, the condensate will have turned to ice.
PARTS REQUIRED
Driveability Kit PN 4419436
1
Aspirator/Filter Assembly
PN 4287369
1
Cap, Air Cleaner Nipple
PN 4201111
1
Heated Air Sensor Package
PN 4397729
1
Authorized Modification Label
PN 4275086
NOTE:
ASPIRATOR/FILTER, PN 4287368, MUST BE REPLACED EVERY 30,000 MILES.
REPAIR PROCEDURE
This repair moves the aspirator air supply from the air cleaner to a separate filter assembly.
NOTE:
1987 MODELS HAVE A RESONATOR ASSEMBLY INSTALLED WHICH TAKES THE PLACE OF THE Y-PIPE DESCRIBED IN
THE REPAIR PROCEDURE.
1.
Remove the nut securing the air horn assembly to the carburetor, lift the air horn assembly, and remove both vacuum hoses from
the air cleaner temperature sensor.
2.
Remove the air temperature sensor from the air horn by gently prying up on the push nuts.
3.
Install new sensor, PN 4397729, into the air horn and secure with the new push nuts supplied in the kit. Connect the vacuum hoses
to the new sensor.
