Almost have a 99' Blazer...
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Starting Member
Joined: Dec 2009
Posts: 119
Almost have a 99' Blazer...
Can someone explain what the code PO147B indicates and perhaps the required fix options?
Also, why would there be a fluid leak from the tranny output gasket on a recently rebuilt transmission? Is this a common problem with Blazers?
Also, why would there be a fluid leak from the tranny output gasket on a recently rebuilt transmission? Is this a common problem with Blazers?
BF Veteran
Joined: Aug 2009
Posts: 3,424
From: munster indiana
out gaskets seem to leak on almost every vehicle i see. i have a few trucks and even after replacing them they seem to instantly leak no idea why so i just ignore it.
P0147 Heated Oxygen Sensor (Bank 1 Sensor 3) Heater Circuit Malfunction
Possible CausesSetting Conditions
P0147 Heated Oxygen Sensor (Bank 1 Sensor 3) Heater Circuit Malfunction
Possible CausesSetting Conditions
- HO2S heater ground circuit is open or has high resistance
- HO2S heater power circuit is open (test O2S fuse in fuse block)
- HO2S heater element has failed
- PCM has failed
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