where are the o2 sensors located on 99 explorer?

Asked by Aug 10, 2014 at 12:47 PM about the 1999 Ford Explorer 4 Dr Limited 4WD SUV

Question type: Maintenance & Repair

after starting motor idles in park fine. when put in drive the engine stalls

3 Answers

17,930

There should be two, but could have four. They are always located in the exhaust pipes. If there are two, one is before the cat converter and the other past it. Referred to as upstream and downstream O2S. They look like a spark plug screwed into the pipe. It has an electrical wire attached to the top. You may want to check on the internet for the procedure to test them. They are not cheap and usually not refundable

1 out of 1 people think this is helpful.
20

Howmuch do they cost

2 out of 2 people think this is helpful.
10

If you are either doing the job yourself or having someone do it for you, but you are buying the parts go to rockauto.com They are about half the cost of local chain automotive stores and probably almost 3 times cheaper than a garage will charge you for them.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Explorer

Looking for a Used Explorer in your area?

CarGurus has 74,624 nationwide Explorer listings starting at $750.

ZIP:

Search Ford Explorer Questions

Ford Explorer Experts

#1 OJ
OJ
Reputation 9,950
#2 Tom Demyan
Tom Demyan
Reputation 4,000
#3 tennisshoes
tennisshoes
Reputation 2,290
View All

Related Models For Sale

Used Jeep Grand Cherokee
1,011 Great Deals out of 73,105 listings starting at $950
Used Ford Expedition
398 Great Deals out of 25,158 listings starting at $1,000
Used Chevrolet Tahoe
566 Great Deals out of 27,189 listings starting at $999
Used Ford F-150
2,229 Great Deals out of 208,628 listings starting at $1,499
Used Dodge Durango
253 Great Deals out of 22,834 listings starting at $1,500
Used Toyota 4Runner
257 Great Deals out of 20,308 listings starting at $1,995
Used Nissan Pathfinder
266 Great Deals out of 21,881 listings starting at $2,250
Used GMC Yukon
351 Great Deals out of 16,934 listings starting at $2,500

Used Cars For Sale

2017 Ford Explorer For Sale
50 Great Deals out of 47,199 listings starting at $22,639
2016 Ford Explorer For Sale
149 Great Deals out of 5,448 listings starting at $20,000
2015 Ford Explorer For Sale
124 Great Deals out of 4,127 listings starting at $14,000
2014 Ford Explorer For Sale
182 Great Deals out of 6,186 listings starting at $11,495
2013 Ford Explorer For Sale
107 Great Deals out of 3,140 listings starting at $7,950