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

65,425

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

65,425

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.
17,075

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.

17,075

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

Your Answer

Add photo

Related Questions

  • why 3 sensors on exhaust 5 answers

    Why are there 3 sensors on exhaust?

    2006 Ford Ranger

    -

    Maintenance & Repair

  • why vent blows hot on cool day? 2 answers

    2008 Ford ranger. Even on cool or cold day, the vent blows hot air. Also the A/ C lower setting blows hot air, but the max air a/c setting will blow cold air. Is there something I can repair easily my...

    2008 Ford Ranger Sport

    -

    Maintenance & Repair

  • Why

    Why does my engine rev up past the 2 on the rpm when I hit the clutch to put it in nuteral when I'm coming to a stop.

    1995 Ford Ranger XLT Extended Cab 4WD SB

    -

    Maintenance & Repair

  • temp sensors 1997 Ford Ranger 2 answers

    Coming out of the thermostat cover is a metal pipe with a sensor (temp?) and several inches further on is another sensor which also appears to be a temp sensor. My car overheats while the temp gauge...

    1997 Ford Ranger XLT Extended Cab SB

    -

    Maintenance & Repair

  • Why is my check engine light on? Why wont my truck hold break fluid? 10 answers

    I have an 88 ranger 4X4 6 cylinder automatic trans. I got side swiped a couple weeks ago. only seemed to be cosmetic but im starting to wonder. Master cylinder is dry. doesnt leave puddles when parked...

    1988 Ford Ranger

    -

    Maintenance & Repair

Ranger

Looking for a Used Ranger in your area?

CarGurus has 295 nationwide Ranger listings starting at $2,500.

Postal Code:

Search Ford Ranger Questions

Ford Ranger Experts

#1 tennisshoes
tennisshoes
Reputation 1,300
#2 Tracy Hooks
Tracy Hooks
Reputation 800
#3 Tom Demyan
Tom Demyan
Reputation 750
View All

Related Models For Sale

Used Ford F-150
303 Great Deals out of 8,874 listings starting at $1,600
Used Toyota Tacoma
15 Great Deals out of 826 listings starting at $10,500
Used Chevrolet Colorado
12 Great Deals out of 1,330 listings starting at $3,500
Used Nissan Frontier
6 Great Deals out of 373 listings starting at $4,980
Used Chevrolet Silverado 1500
118 Great Deals out of 6,684 listings starting at $2,339
Used Dodge Dakota
10 Great Deals out of 170 listings starting at $1,600
Used Dodge Ram 1500
68 Great Deals out of 545 listings starting at $2,985
Used GMC Canyon
17 Great Deals out of 1,092 listings starting at $1,995
Used Ford Explorer Sport Trac
58 listings starting at $7,495
Used Jeep Wrangler
81 Great Deals out of 1,446 listings starting at $4,900
Used GMC Sierra 1500
158 Great Deals out of 7,843 listings starting at $3,333
Used Ford Mustang
4 Great Deals out of 1,358 listings starting at $5,980
Used Toyota Tundra
10 Great Deals out of 714 listings starting at $4,999

Used Cars For Sale

2011 Ford Ranger For Sale
16 Great Deals out of 67 listings starting at $5,495
2010 Ford Ranger For Sale
7 Great Deals out of 40 listings starting at $7,995
2009 Ford Ranger For Sale
9 Great Deals out of 43 listings starting at $5,999
2008 Ford Ranger For Sale
5 Great Deals out of 73 listings starting at $5,521
2007 Ford Ranger For Sale
29 listings starting at $3,995

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.