o2 sensors

Asked by Aug 05, 2016 at 09:46 PM about the 2003 Chevrolet Blazer

Question type: Maintenance & Repair

How many o2 sensors do my 03 blazer have and
where are they located?

1 Answer

10,795

There are 3 O2 sensors on the '03' Chevy Blazer. 2 upstream of the CAT and 1 downstream of the CAT (Which is the easiest to find). The two upstream are the "bank 1" (driver side) and "bank 2" (passenger side) Sensors. They are a little more difficult to locate but if you trace the exhaust manifolds off each side of the engine, you will see them tucked up in there between the wheel well.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Chevrolet Blazer Questions

Chevrolet Blazer Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 1,920
#2 yetilikesbeer
yetilikesbeer
Reputation 1,210
#3 Rowefast
Rowefast
Reputation 910
View All

Related Models For Sale

Used Chevrolet TrailBlazer
72 Great Deals out of 4,365 listings starting at $650
Used Chevrolet Tahoe
641 Great Deals out of 27,810 listings starting at $600
Used Chevrolet S-10
6 Great Deals out of 1,453 listings starting at $1,495
Used Chevrolet Silverado 1500
2,061 Great Deals out of 159,888 listings starting at $999
Used GMC Jimmy
237 listings starting at $2,295
Used Ford Explorer
766 Great Deals out of 74,828 listings starting at $750
Used Ford F-150
2,453 Great Deals out of 210,800 listings starting at $895
Used Jeep Grand Cherokee
836 Great Deals out of 70,488 listings starting at $995
Used Chevrolet Camaro
144 Great Deals out of 35,549 listings starting at $1,995
Used Chevrolet Colorado
242 Great Deals out of 22,140 listings starting at $2,495
Used Chevrolet Suburban
403 Great Deals out of 18,702 listings starting at $2,000
Used Chevrolet Impala
597 Great Deals out of 29,137 listings starting at $1,300
Used Jeep Wrangler
293 Great Deals out of 19,256 listings starting at $3,295

Used Cars For Sale

2005 Chevrolet Blazer For Sale
19 listings starting at $4,587
2003 Chevrolet Blazer For Sale
99 listings starting at $2,995
2001 Chevrolet Blazer For Sale
158 listings starting at $1,995