Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSATURN2000LS1 AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)HEATING, VENTILATION & A/C (HVAC)GENERAL SERVICINGHVAC SYSTEM - GENERAL SERVICING PROCEDURESCHARGING A/C SYSTEMDAIMLERCHRYSLER CORP.BREEZE, CIRRUS & STRATUS (MANIFOLD GAUGE SET METHOD)
2000 Saturn LS1 Automatic
Breeze, Cirrus & Stratus (Manifold Gauge Set Method)
2000 Saturn LS1 AutomaticSECTION Breeze, Cirrus & Stratus (Manifold Gauge Set Method)
- Attach clamp-on Thermocouple (80PK-1A) to liquid line, as close to condenser outlet as possible. Attach manifold gauge set to vehicle.
- Set parking brake, and place transaxle in Park. Start engine and allow to idle. Set A/C controls to outside air, panel mode, full cool, and high blower speed. Turn A/C on, and open windows. Operate system for a few minutes to allow system to stabilize.
- Place cardboard over front grille area, to block airflow through part of condenser, to set A/C pressure to 260 psi (18.3 kg/cm2 ). This will stop cooling fans from alternating speeds, and maintain constant pressure.
- Record temperature reading at liquid line and discharge pressure reading on gauges. Compare readings with values in REFRIGERANT CHARGE LEVEL table.
- Depending on system charge condition, corrections are made 2 ounces at a time. Each time a correction is made, recheck readings to ensure proper charge. For system refrigerant capacity, see REFRIGERANT OIL & REFRIGERANT SPECIFICATIONS article.
REFRIGERANT CHARGE LEVEL
| Liquid Line Temp. - °F (°C) | (1) Discharge Pressure - psi (kg/cm2 ) | ||
|---|---|---|---|
| 40 (4.4) | 53-75 (3.7-5.3) | ||
| 60 (15.6) | 81-104 (5.7-7.3) | ||
| 80 (26.7) | 111-142 (7.8-10.0) | ||
| 100 (37.8) | 156-194 (11.0-13.6) | ||
| 120 (48.9) | 208-259 (14.6-18.2) | ||
| 140 (60.0) | 272-331 (19.1-23.3) | ||
| 160 (71.1) | 353-420 (24.8-29.5) | ||
| 180 (82.2) | 447-516 (31.4-36.3) | ||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.