why 3 sensors on exhaust

Asked by Mar 06, 2017 at 03:37 PM about the 2006 Ford Ranger

Question type: Maintenance & Repair

Why are there 3 sensors on exhaust?

5 Answers

82,825

I am guessing you have a V6 in the Ranger. There are two pre-cat O2 sensors and one after the cat O2 sensor. They help the computer set the fuel/air ratio.

Thanx,do they all go bad? 3 @ $50.00 is stiff for disabled vet that has little funds

82,825

Of course they go bad but not necessarily all at the same time. If the CEL is on have the codes read which may tell you which one(s) are bad.

1 of 1 people found this helpful.
20,915

They may be good so first check all the possible reasons for one to set a code if one has been set and you think you need new O2's. I will post a url copy & paste it to a new browser window. It will give information on what to check for, Like you said all going bad at same time is most often something causing them to set code so check all possible causes before replacing.

20,915

https://www.engine-light-help.com/oxygen-sensor-codes.html

Your Answer

Ranger

Looking for a Used Ranger in your area?

CarGurus has 319 nationwide Ranger listings starting at $2,900.

Postal Code:

Ford Ranger Experts

  • #1
    tennisshoes
    Reputation
    1,450
  • #2
    F_O_R
    Reputation
    900
  • #3
    Tracy Hooks
    Reputation
    860
View All

Related Models For Sale

Used Ford F-150
589 Great Deals out of 10,677 listings starting at $3,300
Used Toyota Tacoma
37 Great Deals out of 1,017 listings starting at $5,999
Used Chevrolet Colorado
19 Great Deals out of 1,785 listings starting at $1,999
Used Nissan Frontier
31 Great Deals out of 507 listings starting at $5,674
Used Chevrolet Silverado 1500
172 Great Deals out of 9,782 listings starting at $1,700
Used Dodge Dakota
9 Great Deals out of 152 listings starting at $999
Used Dodge Ram 1500
40 Great Deals out of 498 listings starting at $3,488
Used GMC Canyon
23 Great Deals out of 1,578 listings starting at $3,995
Used Ford Explorer Sport Trac
4 Great Deals out of 64 listings starting at $1,800
Used Jeep Wrangler
109 Great Deals out of 1,922 listings starting at $1,990
Used GMC Sierra 1500
240 Great Deals out of 9,965 listings starting at $399
Used Toyota Tundra
48 Great Deals out of 1,200 listings starting at $2,500
Used Ford Mustang
9 Great Deals out of 1,075 listings starting at $3,000
Used Ford F-250 Super Duty
31 Great Deals out of 802 listings starting at $6,857

Used Cars For Sale

2011 Ford Ranger For Sale
21 Great Deals out of 62 listings starting at $3,900
2010 Ford Ranger For Sale
10 Great Deals out of 48 listings starting at $4,995
2009 Ford Ranger For Sale
7 Great Deals out of 35 listings starting at $4,994
2008 Ford Ranger For Sale
16 Great Deals out of 86 listings starting at $3,000
2007 Ford Ranger For Sale
3 Great Deals out of 44 listings starting at $4,300

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.