Neon L4-2.0L DOHC (1996)
WARNING:
THE A/C SYSTEM MUST BE COMPLETELY DISCHARGED BEFORE PROCEEDING WITH THIS OPERATION.
3.
Remove the boot-type wire connector from the low pressure cut-off switch which is part of the expansion valve.
4.
Remove the bolt in the center of the refrigerant line sealing plate.
5.
Carefully pull the refrigerant line sealing plate from the expansion valve.
6.
Cover the openings on refrigerant line sealing plate to prevent contamination or damage.
7.
Remove the two screws attaching the expansion valve to the evaporator sealing plate.
8.
Carefully remove the expansion valve and the two aluminum gaskets. Remove the Low Pressure Cut-off switch from the old expansion valve and
install it on the **new expansion valve, P/N 5264744.**
9.
Place a new gasket, PIN 4677045, on the evaporator sealing plate and install the ** new expansion valve, P/N 5264744.** DO NOT SCRATCH
THE SEALING SURFACES of the new expansion valve. Install the two attaching screw and torque to 70 - 130 in. lbs (8 - 14 Nm).
10.
Add two ounces of PAG-ND8, P/N 82300102, oil into the suction line.
11.
Place a new gasket, P/N 3846834, on the refrigerant line sealing plate.
12.
Carefully hold the refrigerant line sealing plate to the expansion valve, DO NOT SCRATCH THE SEALING SURFACES. Install the attaching
bolt and torque to 170 - 230 in. lbs. (20 - 26 Nm.).
13.
Connect the wire connectors to the low pressure cut-off switch.
14.
Evacuate and recharge the A/C system. Proceed to the following steps to verify that the condition has been corrected.
15.
The engine should be at normal operating temperature and the vehicle should be in a quiet location with all windows and doors closed.
16.
Set the Heater-A/C controls to FLOOR, RECIRC, with the temperature control at "full heat" and blower on "high heat", A/C off.
17.
Run the vehicle until the interior temperature reaches at least 110 degrees Fahrenheit.
18.
Raise the engine speed to between 2,500 to 3,000 RPM and maintain. Switch the Heater-A/C blower control to "low A/C".
19.
Listen for the condition to occur at the beginning of each A/C compressor clutch cycle. If the "whistle" is still exists replace the A/C evaporator
coil, P/N 4797130 as outlined in the Service Manual, Pages 24-23 through 24-24.
NOTE:
USE NEW EXPANSION VALVE GASKETS PIN 4677045 AND 3846834 BUT DO NOT REPLACE THE EXPANSION VALVE A SECOND
TIME.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:Valve, A/C Expansion Valve, Replace & Add Oil
Labor Operation No: 24-35-20-90
1.1 Hrs.
Coil, Evaporator, Replace
24-65-02-96
4.0 Hrs.
FAILURE CODE:
P8 - New Part
