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1990
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DeVille V8-273 4.5L
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Repair and Diagnosis
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Service and Repair
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Guidelines For Retrofitting R-12 Vehicles to R134A
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Bulletin No.: 43-12-07E
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A. Retrofit Procedure
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Accumulator /Dryer
Accumulator /Dryer
If the vehicle is more than 5 years old, the Accumulator/Dryer (A/D) should be replaced to ensure that moisture is removed from the system. See the instructions for proper A/D identification in General Information.