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 MANUALSCHEVROLET1990LUMINA APV V6-191 3.1LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCOMPRESSOR HVACSERVICE AND REPAIRCOMPRESSOR AND/OR BRACE
1990 Chevrolet Lumina APV V6-191 3.1L
Compressor and/or Brace
1990 Chevrolet Lumina APV V6-191 3.1LSECTION Compressor and/or Brace
A/C Compressor Brace:
A/C Compressor Coupled Hose Assembly:
High-Low Pressure Compressor Cut-Off Switches:
Remove or Disconnect
1. Negative battery cable.
2. Discharge A/C system.
3. Electrical connectors from compressor.
4. Serpentine belt from compressor pulley by releasing belt tension at tensioner.
5. Belt off compressor pulley.
6. Raise vehicle.
7. Right front wheel for easier access to compressor and attaching hardware.
8. Right front wheel splash shield.
9. Bolts (2) from front engine bracket securing compressor (front).
10. Bolt (1) from rear engine bracket securing compressor (rear).
11. Engine block stud nut securing A/C compressor brace.
12. Bolt (1) attaching brace to compressor.
13. Compressor. It may be necessary to remove rear mounting bracket and bolts (3) for clearance.
Install or Connect
1. Compressor by reversing removal steps.
2. Battery negative cable.
3. Recharge and leak test A/C system.
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.