Town & Country Van V6-201 3.3L VIN R SMFI (1990)
Technical Service Bulletin # 240889
Date: 891211
Air Conditioning - Growling/Groaning Noise
Models
1990 AC, AS & AY Bodies Equipped with A/C and 3.3L Engine
Subject
Air Conditioning System Noise in the Passenger Compartment
Index
HEATING AND AIR CONDITIONING
Date December 11, 1989
No.
24-08-89
(C24-08-9)
P-4256
BODY CODE LEGEND
AC - DYNASTY/NEW YORKER LANDAU/SALON AS - CARAVAN/VOYAGER/CARAVAN C/V/ GRAND CARAVAN/GRAND
VOYAGER/TOWN & COUNTRY AY - NEW YORKER FIFTH AVENUE/IMPERIAL
SYMPTOM/CONDITION
Growling or moaning noise in passenger compartment with air conditioning on, worse in high ambient temperatures and/or humidity.
DIAGNOSIS
PROCEDURE TO CHECK FOR COMPRESSOR INDUCED NOISES.
1.
Check along the entire length of the discharge, suction and liquid lines for grounding. These lines should not be touching any sheet metal or any
other underhood components. Also, check these lines for grounding upon engine roll. Pay particular attention to the following areas: radiator
support, shock tower, and bulkhead. If necessary, carefully reroute lines to clear.
2.
Check for proper foam rubber insulation at all plumbing line brackets. There should be no contact between the lines and brackets.
CHECK FOR ENGINE MOUNT CLEARANCE.
Check the right (passenger side) engine mount for yoke bracket to insulator assembly clearance. If contact exists between the yoke bracket and insulator
assembly, readjustment of front engine mount is necessary.
Procedure to readjust front engine mount:
A.
Loosen front insulator assembly fasteners from front cross member.
B.
Adjust clearance between front insulator assembly and front engine bracket to 12 mm on passenger side and 7 mm on driver's side.
C.
Tighten the front insulator assembly fasteners (30-50 ft.lbs.).
PARTS REQUIRED
Parts must be ordered separately as required.
All AS-Body Vehicles
1
Weight Assembly
PN 4384991
AC & AY Body
Vehicles as Required