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

96,045

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

96,045

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.
22,055

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.

22,055

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

Your Answer

Ranger

Looking for a Used Ranger in your area?

CarGurus has 4,999 nationwide Ranger listings starting at $1,299.

ZIP:

Ford Ranger Experts

  • #1
    tennisshoes
    Reputation
    1,520
  • #2
    F_O_R
    Reputation
    1,000
  • #3
    Bob Beaman
    Reputation
    910
View All

Related Models For Sale

Used Toyota Tacoma
540 Great Deals out of 41,033 listings starting at $2,500
Used Ford F-150
3,016 Great Deals out of 229,513 listings starting at $1,300
Used Chevrolet Colorado
318 Great Deals out of 42,437 listings starting at $1,299
Used Nissan Frontier
442 Great Deals out of 25,090 listings starting at $1,400
Used Chevrolet Silverado 1500
2,725 Great Deals out of 156,612 listings starting at $1,000
Used Dodge Dakota
81 Great Deals out of 3,427 listings starting at $1,475
Used Dodge Ram 1500
324 Great Deals out of 10,665 listings starting at $1,988
Used GMC Canyon
107 Great Deals out of 14,801 listings starting at $1,500
Used Jeep Wrangler
349 Great Deals out of 20,373 listings starting at $2,500
Used Ford Mustang
337 Great Deals out of 42,077 listings starting at $1,488
Used GMC Sierra 1500
1,106 Great Deals out of 61,529 listings starting at $1,295
Used Ford Explorer Sport Trac
52 Great Deals out of 1,771 listings starting at $1,800
Used Toyota Tundra
625 Great Deals out of 36,104 listings starting at $1,500
Used Ford F-250 Super Duty
443 Great Deals out of 47,415 listings starting at $695

Used Cars For Sale

2011 Ford Ranger For Sale
30 Great Deals out of 747 listings starting at $3,988
2010 Ford Ranger For Sale
18 Great Deals out of 388 listings starting at $2,900
2009 Ford Ranger For Sale
8 Great Deals out of 273 listings starting at $3,495
2008 Ford Ranger For Sale
14 Great Deals out of 388 listings starting at $3,399
2007 Ford Ranger For Sale
14 Great Deals out of 271 listings starting at $1,999

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.