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 MANUALSCHEVROLET1987CHEVETTE L4-98 1.6LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGACCUMULATOR HVACSERVICE AND REPAIR
1987 Chevrolet Chevette L4-98 1.6L
Accumulator HVAC: Service and Repair
1987 Chevrolet Chevette L4-98 1.6LSECTION Service and Repair
1. Disconnect battery ground cable, then discharge system refrigerant.
2. Disconnect low pressure switch or pressure cycling switch (if equipped).
3. Remove accumulator guard (if equipped).
4. Disconnect accumulator inlet and outlet lines. Until accumulator is about to be installed, inlet and outlet fittings must remain plugged to prevent moisture contamination from atmosphere. While new units are supplied with caps for this purpose, plastic sheet and elastic bands may be used on units removed from vehicles.
5. Remove accumulator bracket retaining screws, then remove accumulator from vehicle.
6. Reverse procedure to install. If installing new unit, measure level of refrigerant oil in old unit. Add this amount of clean 525 viscosity refrigerant oil, plus 2 fluid ounces, to new unit. Install new O-rings coated with clean refrigerant oil when installing inlet and outlet lines.
RENDER: 1.0x
NO RELATED
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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.