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
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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