Cadillac Escalade, EXT and ESV Forum - 1999 - 2006 Discussion, 02 sensors for 2002 ext in Cadillac Escalade Forums; I have a 2002 EXT, the service engine soon light came on. We used a Car MD and it said ...
- 04-15-11 10:51 PM #1
02 sensors for 2002 ext
I have a 2002 EXT, the service engine soon light came on. We used a Car MD and it said the 02 sensors needed changing. My husband changed 2 of them. Then we found out there are actually 4 of them. Can you tell me the locations of the 4 sensors? Then I can relay the info to my husband.
I appreciate your help. Sandy
- 04-15-11 11:43 PM #2
Re: 02 sensors for 2002 ext
there are 2 on each side .... one before the cat (#1) and one after (#2)