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Porsche
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1988
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928 S4 V8-4957cc 5.0L
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Repair and Diagnosis
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Relays and Modules
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Relays and Modules - HVAC
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Control Module HVAC
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Technical Service Bulletins
Control Module HVAC: Technical Service Bulletins
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Customer Interest
Fresh Air Fan - Changes Speed
All Technical Service Bulletins
Fresh Air Fan - Changes Speed
A/C - Bimetal Temperature Switch Modified