400 L4-156 2.6L (1982)
Carburetor: All Technical Service Bulletins
Carburetor - Intermittent Engine Power Loss
Models
1981 & 1982 2.6L Domestic Passenger Cars, Federal & California
1984 2.6L Caravan/ Voyager & Ram-Van, Federal & California
Subject
Part Throttle Loss of Power (Sag)
Index
FUEL
Date
February 13, 1984
No..
14-05-84
P-499-C
SYMPTOM/CONDMON
Engine will intermittently loose power (sag) suddenly while driving at a constant road speed, usually at highway speed, but sometimes in city traffic.
This condition is occasionally characterized by having a good idle and has wide open throttle, but is substantially weaker because it still lacks primary
venturi fuel supply when the loss of part throttle power occurs.
DIAGNOSIS
In trying to diagnosis this condition it may not be possible to duplicate the loss of power in the service shop area or even during a short road test due to
the infrequency of the occurrence.
PARTS REQUIRED
1 - Jet Block and Gasket Package
PN MD082907
1 - Float Chamber Cover Gasket
PN MD608135
1 - Choke Cover Kit
PN MD606977
1 - Authorized Modification Label
PN 4275086
REPAIR PROCEDURE
Installation
1.
Remove carburetor air cleaner crossover.
2.
Drain and save approximately one gallon of coolant.
3.
To prepare carburetor for removal, disconnect vacuum hoses, canister lines, throttle linkage, return spring and, when so equipped, cruise control
cable and bracket, water inlet hose, and 10 mm nut next to sub-EGR valve linkage.
NOTE:
IT IS RECOMMENDED BEFORE REMOVING CARBURETOR FROM MANIFOLD THAT THE SIX (6) AIR HORN SCREWS BE
LOOSENED USING A HAND IMPACT TOOL WITH A #2 PHILLIPS BIT, A RACHET WRENCH, OR A #2 PHILLIPS SCREWDRIVER
BY LIGHTLY TAPPING WITH A HAMMER ON THE END OF THE SCREWDRIVER. (DO NOT REMOVE SCREWS AT THIS TIME,
JUST LOOSEN THEM.)
4.
Remove the four (4) hold-down bolts that pass through carburetor, then remove carburetor for disassembly.
5.
For carburetor disassembly, follow procedures in the respective year service manual.
