LeBaron L4-135 2.2L VIN B 2-bbl (1982)
probably blow fuel straight up from the carburetor's internal vent area.
6.
Restart engine and attempt to adjust curb idle speed. If this procedure fails to give a satisfactory idle, follow the procedure in Step 7 below.
7.
Remove the carburetor air horn.
Apply shop air to all air bleed and fuel circuits in both the main body and air horn repeatedly blowing out the circuits in an alternating pattern.
Replace carburetor air horn. Start engine and attempt to adjust curb idle speed.
8.
If the above procedures do not resolve the problem, or if the problem recurs, a thorough bench teardown and cleaning of the carburetor will be
required.
POLICY:
Information only
Technical Service Bulletin # 143282
Date: 820823
Engine - Slow Rough or No Idle
Models
1978 to 1982 1.7L & 2.2L Engines With Holley Carburetor Models 5220 & 6520
Subject
Engine Will Not Idle or Will Idle Slow or Rough
Index
FUEL
Date
August 23, 1982
No.
14-32-82
P-2283-C
SYMPTOM/CONDITION
Vehicle operates satisfactorily, then suddenly develops a poor idle or no-idle condition while maintaining satisfactory off-idle operation due to idle
circuit plugging.
DIAGNOSIS
Connect a tachometer to engine. Start engine and allow to fully warm up.
Remove air cleaner crossover and look down primary venturi throat of carburetor.
If fuel is seen to be dripping or flowing from the venturi nozzle, place your finger over the idle air bleed and slowly turn the solenoid idle speed adjusting
screw counterclockwise.
If engine will idle to specification with no nozzle drip then remove your finger from the idle air bleed. If the engine dies the idle fuel circuit is plugged or
restricted. Follow repair procedure outlined below:
NOTE:
The solenoid idle stop may have been adjusted far beyond the normal curb idle setting, starting the venturi nozzle dripping, in an
attempt to remedy the no-idle condition.
REPAIR PROCEDURE
1.
Thoroughly warm up engine.
2 .
With the transaxle in neutral and the parking brake
applied, place the fast idle speed screw on the top (highest) step on the fast idle cam.
