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#1
09-11-2006, 04:30 PM
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o2 Sensor location on 97 GMC Sonoma
A very close friend has a 97 GMC Sonoma 4.3 L V6 and when we read the OBD it gave us a code PO147 and the readout stated "o2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 3)
My question is; where is o2 sensor # 3 located specifically so I can remove and replace it for him. I'm an old Corvette guy and don't know anything about his GMC Sonoma but trying to help him out. Thank you in advance for any help, Kurt 
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