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2001 Cadillac EL Dorado oxygen sensors

Tiny
BOBALOUIE
  • MEMBER
  • 2001 CADILLAC ELDORADO
  • V8
  • FWD
  • AUTOMATIC
  • 80,000 MILES
Location of pre cat oxygen sensors and how difficult to replace? My mechanic wants 150 labor, plus 240 parts almost 400 I would like to do it myself would I need to work under the car or can you do this from under the hood? Catalytic convertor is new and also the post cat oxygen sensor
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Wednesday, March 3rd, 2010 AT 2:13 PM

1 Reply

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
Bank 1 can be accessed from under the hood, it is between firewall and engine about the center of top. You will probably need a special socket or crowfoot to R&R. The bank 2 sensor is under the front, in the manifold just before the flange of the crossover pipe.
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Monday, March 8th, 2010 AT 10:31 AM

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