Ford

Have Ford Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Ford
This answer was rated:

97 ford explorer: 4.0L..My check engine light..oxygen sensor..stall

I have a 97 ford...
I have a 97 ford explorer 4.0L 6V SOHC. My check engine light has been on for a long time and has always said that a oxygen sensor is bad. Well here recently my car idles rough and has started to stall out when I press my brake. I took it to Advanced Auto Parts to have them retrieve the codes and now it says system too lean and oxygen sensor malfunction (Bank 2, Sensor 1). what should I do? I'm not sure if that oxygen sensor could be my trouble or if it might be my IAC Valve.
Show More
Show Less
Ask Your Own Ford Question
Answered in 3 minutes by:
7/19/2010
Ron
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 36,848
Experience: 23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
Verified
Chat Conversation Started
Ron :

Hello,

The code is not likely being set by a bad HO2S sensor but instead , a leaking intake gasket, the 4.0 has major problems with the upper intake gaskets leaking causing the problem you are having. Ford has released a new redesigned gasket set along with new isolator bolts that will resolve you concern. This would also cause the engine to idle rough as well as stall//

Customer:

is that expensive to repair

Ron :

Here is the labor and part pricing.


































Intake Manifold Gasket
Manifold Gasket
UpperYL2Z9E436AA$5.07
LowerYL2Z9461AA$2.05









































LaborSkill
Level
Mfg.
Warranty
Standard
Intake Manifold Gasket
Replace
Manifold Gasket
UpperB1.01.4
Upper & LowerB1.52.6
NOTE
With Cruise Control, AddB0.10.1

Customer:

What does it involve? is it something that i regular person could do?

Ron :

It involves removing the upper intake and replacing the gasket, I can send you instructions if you like>

Customer:

please do!

Ron :

Here you go click HERE

Customer:

how would know if it is that? is there a way to test it? I already tried so much that didn't work and don't really have money to spend on another thing that isn't the problem!

Ron :

In some case you can take some carb cleaner and carefully spray around the intake area and it might show the leak, it dosnt always work but is a very commom fix for yhis problem and code.

Customer:

do you have a diagram of where the oxygen sensors are located?

Customer:

you know just in case

Ron :

They are in the exhaust pipe just below where the pipe bolts to the exhaust manifold.

Customer:

the heated one for bank 2 is located before the converter, right? is it hard to get to?

Ron :

Yes that is correct , bank 2 is the drivers side. Yes they are pretty tight and not a fun job.

Customer:

well i askd you because the people at advance told me it was on passenger side

Customer:

sorry i'm glad i ask you

Ron :

Well they are wrong, bank one is the passenger side (same as the #1 cylinder)

Full Size Image

Customer:

so if it has a leak will i see bubbles or will it just suck it in when i spray that stuff! They seem to always be wrong and they give me wrong parts for my truck

Ron :

Yes it will change the way the engine runs. It wery common as well. You could unplug both HO2S sensors and the car will not run rough. A leak will tho.

Customer:

thats what i thought!! I tried telling them that didn't think it would that sensor bc it just tellings the computer something is wrong but doesn't change anything!

Ron :

Well they dont fix cars but they love to sell parts.

Customer:

My brother said the same thing was happening to his van and he took it somewhere to get it fix and it was something under the distributor cap he said they described to be like the butterfly thing in a carburator. does the explorer have anything like that in it or that would do this?

Customer:

thats so true!!

Ron :

You do not have a distributor.

Customer:

really?

Customer:

what do i have instead of that?

Ron :

You have a crankshaft sensor the send the signal to the PCM (computer) which in turns fires the coil on the coil pack.

Customer:

ok well thank you so much for your help! i really hope that this is what is wrong!

Customer:

it seems like an easy fix

Ron :

Your very welcome,thank you as well.

Ron
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 36,848
Experience: 23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
Verified
Ron and 87 other Ford Specialists are ready to help you
Ask your own question now
Ask Ron Your Own Question
Ron
Ron
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 36,848
36,848 Satisfied Customers
Experience: 23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Ron is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on.

Rich DUSA

Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me.

MollyUSA

I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service.

Jason V.Kirkland, WA

I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there.

BRNew Jersey

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

< Previous | Next >

Meet the Experts:

Ron

Ron

ASE Certified Technician

36,848 satisfied customers

23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

Chris (aka- Moose)

Chris (aka- Moose)

Technician

28,139 satisfied customers

16 years experience

John Mc

John Mc

Ford Technician

5,495 satisfied customers

19 years Ford Lincoln Mercury experience

Chuck

Chuck

ASE Certified Technician

1,685 satisfied customers

33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance

Cam

Cam

Journeyman Automotive Technician

10 satisfied customers

GM Grand Master Technician 2007. 14 years Automotive experience.

Richard

Richard

ASE Certified Technician

1,524 satisfied customers

12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.

Mike V.

Mike V.

Auto Service Technician

1,380 satisfied customers

25 years experience on all makes and models, Licensed NYS Inspector.

< Previous | Next >

Related Ford Questions
I replaced the cruise control switch on my 2000 explorer and
I replaced the cruise control switch on my 2000 explorer and all I get is the flashing green light . The cruise control does not work. … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
Cruise control stopped working. Checked brake pressure
Cruise control stopped working. Checked brake pressure switch, clutch engagement switch, brake pedal switch, and brake lights. Horn works. Checked connections coming from steering wheel and plugs are … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
I need to change the cruise control module on the bottom of
I need to change the cruise control module on the bottom of master cylinder on my Ford f350 … read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
Cruise control is not working. No I did not, it is Eddie
No I did not, it is Eddie Bower 2002, 6 Cylinder. I think it is 4.0 liters … read more
Ron
Ron
ASE Certified Technician
36,848 satisfied customers
Need a fuse panel diagram. Cruise control inoperative abs
Need a fuse panel diagram JA: Okay, I'll connect you to the mechanic to go over that information regarding your Ford. Before I do, is there anything else you want him to know? Customer: Cruise control… read more
Cesar Jimenez
Cesar Jimenez
Owner/CEO
Vocational, Technical or Trade School
85 satisfied customers
I have a 2004 f350 diesel and the cruise control stopped
Hi I have a 2004 f350 diesel and the cruise control stopped working after hitting a deer but there was no damage to the vehicle at all! I checked all fuses and I replaced the switch on the master cyli… read more
Edward Clayton
Edward Clayton
Associate Degree
1,033 satisfied customers
The buttons for my cruise control have broken off How much
The buttons for my cruise control have broken off How much to replace them … read more
Eric
Eric
Retired
N/A
31,322 satisfied customers
How do you remove and replace cruise control buttons on 2005
Hello how do you remove and replace cruise control buttons on 2005 excursion with leather steering wheel, have removed airbag and pulled wheel but don't see how to replace button module. after studyin… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
28,139 satisfied customers
My 2000 ford excursion's cruise control stopped working
my 2000 ford excursion's cruise control stopped working while my husband was driving. … read more
Ron
Ron
ASE Certified Technician
36,848 satisfied customers
Cruise control stopped working. Could it be a fuse? Control
Cruise control stopped working. Could it be a fuse? Control buttons on steeri … read more
Shawn Few
Shawn Few
AS
70 satisfied customers
Ron - The cruise control will not engage when activate nor
Ron - The cruise control will not engage when activate nor will the cruise light come on in the dash. This car only has 49,000 miles on it, was driven by older people who probably never used the cruis… read more
Ron
Ron
ASE Certified Technician
36,848 satisfied customers
Cruise control does not work on 2010 ford f-150.need
cruise control does not work on 2010 ford f-150.need solution … read more
Todd M
Todd M
Owner
ASE Certification
1,484 satisfied customers
My Cruise Control won't engage. When I press the SET button,
My Cruise Control won't engage. When I press the SET button, the dash light flashses and it won't engage. For awhile I could tap my brakes a couple times and then it would work. I just replaced the br… read more
Scott W.
Scott W.
Line Technician
Vocational, Technical or Trade Scho
3,354 satisfied customers
Cruise control not working 2004 ford expedition. 5.4.
cruise control not working 2004 ford expedition JA: Have you checked the fuse? What size is your engine? Customer: yes 5.4 JA: Are you fixing your Expedition yourself? What have you tried so far? Cust… read more
Michael Solis
Michael Solis
363 satisfied customers
2002 f250 super duty V10 cruise control stopped working. did
2002 f250 super duty V10 cruise control stopped working. did self test. flash entering diagnostic, flash depressing on switch....no flashes after that. Problem???? I'm not a mechanic. … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,228 satisfied customers
2007 Territory cruise control not working, Engine 4litre
Engine 4litre petrol Can't find fuse ID in manual or on car … read more
Gary
Gary
Senior Technician
Vocational, Technical or Trade School
58 satisfied customers
Cruise control & speedometer stopped working when on road.
cruise control & speedometer stopped working when on road. Turned off engine then restarted it works … read more
A. Penland
A. Penland
Ford Senior Master Technician
Vocational, Technical or Trade School
6,690 satisfied customers
No cruise control. Trying to locate the brake pressure
No cruise control. Trying to locate the brake pressure switch so I can diagnose it. … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,228 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x