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 DIAGNOSISTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSA/C - TOOL AND EQUIPMENT MAINTENANCE
1990 Chevrolet Lumina APV V6-191 3.1L
A/C - Tool And Equipment Maintenance
1990 Chevrolet Lumina APV V6-191 3.1LSECTION A/C - Tool And Equipment Maintenance
File In Section: 1 - HVAC
Bulletin No.: 63-12-08A
Date: April, 1997
INFORMATION
Subject:
A/C Tool and Equipment Maintenance; Tune-Up Spring Reminder
Models:
1997 and Prior Passenger Cars and Trucks
This bulletin is being revised to add the 1997 model year and to update
"Maintenance/Tune-Up" information. Please discard Corporate Bulletin Number 63-12-08 (Section 1 - HVAC).
Your A/C tools and equipment were built for long use, but certain parts were designed to need periodic service. Inadequate maintenance can significantly reduce the performance on the following tools and equipment:
J 39851 PureGuard (R12)
J 38100, J 38750-A ACR3 (R12)
J 38100-30 ACR3 30 lb. Replacement Tank (R12)
J 39400 Electronic Leak Detector (R12 & R134a)
J 39500 ACR4 (R134a)
J 41810 PureGuard 2 (R134a)
Contact Kent-Moore at 1-800-345-2233 for assistance or to order the above tools.
Notice:
When using any R12 or R134a Recovery Station equipped with a refrigerant monitor (PureGuard or PureGuard 2), always inject oil and charge refrigerant into vehicles through the HIGH SIDE ONLY. Injecting oil or charging refrigerant through the low side WILL damage the PureGuard and PureGuard 2.
Important:
Never open low side manifold valve when injecting oil.
Parts Information
Parts are currently available from GMSPO.
Bulletin No.: 63-12-08A
Date: April, 1997
INFORMATION
Subject:
A/C Tool and Equipment Maintenance; Tune-Up Spring Reminder
Models:
1997 and Prior Passenger Cars and Trucks
This bulletin is being revised to add the 1997 model year and to update
"Maintenance/Tune-Up" information. Please discard Corporate Bulletin Number 63-12-08 (Section 1 - HVAC).
Your A/C tools and equipment were built for long use, but certain parts were designed to need periodic service. Inadequate maintenance can significantly reduce the performance on the following tools and equipment:
J 39851 PureGuard (R12)
J 38100, J 38750-A ACR3 (R12)
J 38100-30 ACR3 30 lb. Replacement Tank (R12)
J 39400 Electronic Leak Detector (R12 & R134a)
J 39500 ACR4 (R134a)
J 41810 PureGuard 2 (R134a)
Contact Kent-Moore at 1-800-345-2233 for assistance or to order the above tools.
Notice:
When using any R12 or R134a Recovery Station equipped with a refrigerant monitor (PureGuard or PureGuard 2), always inject oil and charge refrigerant into vehicles through the HIGH SIDE ONLY. Injecting oil or charging refrigerant through the low side WILL damage the PureGuard and PureGuard 2.
Important:
Never open low side manifold valve when injecting oil.
Chart:
Chart:
Parts Information
Parts are currently available from GMSPO.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.