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Code po139 caddy eldorado 1997 - Eldorado Cadillac Cars & Trucks

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Posted on Jan 02, 2017

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ftw1952
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SOURCE: Where is the fuel filter 84 Cad Eldorado?

A few feet in front of the gas tank

Posted on May 08, 2010

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SOURCE: Need to replace a turn signal flasher on a 1997

Hello i can help in front of your knees when you sit in drivers seat that panel has to come off along the bottom edge 4 Philips screws remove them panel comes off you will See the black square box 1inch by 1 inch or a round clear flasher 3 prong when unplugged.

Posted on Jan 03, 2011

Testimonial: "The response I recieved was right on the money! I was able to replace the part on my Cadillac Eldorado. Many Thanks!!!"

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SOURCE: pcm code po139 eldorado

P0139: O2 Sensor CKT Slow Response (Bank 1 Sensor 2)

- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Faulty Rear Heated Oxygen Sensor Bank 1
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks

Posted on Feb 07, 2012

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Pcm code po139 eldorado


P0139: O2 Sensor CKT Slow Response (Bank 1 Sensor 2)

- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Faulty Rear Heated Oxygen Sensor Bank 1
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Hello i can help in front of your knees when you sit in drivers seat that panel has to come off along the bottom edge 4 Philips screws remove them panel comes off you will See the black square box 1inch by 1 inch or a round clear flasher 3 prong when unplugged.

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