Aries L4-135 2.2L SOHC (1983)
Hose/Line HVAC: All Technical Service Bulletins
Instrument Panel/Cowl Area - Buzz/Rattle
Models
1983 Reliant, Aries, 400, LeBaron, 600 & New Yorkers Equipped With 2.2 Liter Engine
Subject
Buzzing or Rattle Right Hand Side of Instrument Panel in Cowl Area
Index
AIR CONDITIONING
Date
October 3, 1983
No.
24-05-83 P-3574-C
SYMPTOM/CONDITION
Some subject vehicles may have a buzzing or rattle sound which appears to be coming from the instrument panel in the right cowl area, with the engine
running at certain RPM conditions (will vary from car to car). This noise could be the result of normal engine vibration being transmitted to the A/C
evaporator through the A/C plumbing.
DIAGNOSIS
1.
Set parking brake. Start vehicle engine. With transaxle in Neutral or Park, accelerate engine to noise range.
2.
Have an assistant place his or her hand on the A/C suction line and apply enough pressure to hold line solidly against filter/drier. If noise is
eliminated, proceed to repair procedure. If noise continues, other areas must be investigated.
PARTS REQUIRED
1 - Package With Bracket
PN 4318125
REPAIR PROCEDURE
1.
Remove and discard tie strap holding suction line to filter drier.
2.
Check area where A/C lines come through cowl panel to ensure cowl panel seal is in place. If evaporator block protrudes from the cowl panel,
push the plumbing rearward to force seal against cowl panel. There should be at least 1/8" clearance between cowl panel and any metal of A/C
components.
3.
Seal gap with a water resistant sealer such as Silicone Rubber Sealer, PN 4318025, or equivalent.
4.
Thread the screw-type hose clamp through the slots in the hose support bracket and close clamp around the suction hose. Do not tighten fully.
