Dismiss Notice



Register Today It's free! This box will disappear once registered!

check engine light

Discussion in 'General Explorations!!' started by mrplow, December 15, 2004.

^^Searches ExplorerForum.com^^
  1. mrplow

    mrplow New Member

    Joined:
    December 1, 2004
    Messages:
    47
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    Florida
    Year, Model & Trim Level:
    '98 Sport
    today my check engine light came on. the engine is running fine though. It has good power, no wierd noises. what could it be???
     
  2. Support EF

    Join the Elite Explorers for $20

    Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose fix problems yourself and learn which modifications work without having to experiment on your own. Elite Explorer members see practically no ads, can add their own profile photo, upload photo attachments in all forums, and Media Gallery, create more private Conversations, and more. Join Today. Your support is greatly appreciated.



  3. Robb

    Robb Explorer Addict

    Joined:
    February 13, 2002
    Messages:
    9,716
    Likes Received:
    3
    Trophy Points:
    0
    You need to get the codes read. There is no way to tell you what the problem could be.
     
  4. mrplow

    mrplow New Member

    Joined:
    December 1, 2004
    Messages:
    47
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    Florida
    Year, Model & Trim Level:
    '98 Sport
    how much does that cost to have done?
     
  5. bluevolume

    bluevolume Active Member

    Joined:
    May 2, 2000
    Messages:
    201
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    Rochester, NY
    Year, Model & Trim Level:
    2001 XLT
    $0 at Autozone
     
  6. bstarz65

    bstarz65 Active Member

    Joined:
    October 25, 2004
    Messages:
    116
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    Bellmawr, NJ
    Year, Model & Trim Level:
    '97 xlt
    I have a 97 and the check engine light also comes on only when the temputure is below 25deg. I bought a obdII at pep boys for 99 dollars, the code came up LEFT BANK LEAN RIGHT BANK LEAN . I have no idea what that means thought.
     
  7. 99EURO

    99EURO New Member

    Joined:
    November 4, 2004
    Messages:
    23
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    K-Town Germany
    Year, Model & Trim Level:
    99 High Class
    Intake Manifold Gaskets

    I am having the same problem right now. The local Ford dealer said its the intake manifold gaskets. I have read on this forum that its a common problem with the 4.0 SOHC. They are going to do the front timing tensioners when they fix the intake also.
     
  8. 00XLS

    00XLS Well-Known Member

    Joined:
    January 13, 2004
    Messages:
    1,008
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    Frackville/State College PA
    Year, Model & Trim Level:
    Explorer 00 XLS
    Sounds like an O2 sensor problem, take it to autozone and have them scan it for free, write down the codes they tell you and we can help pinpoint it.
     
  9. Four0Sport

    Four0Sport Jack Pewe Elite Explorer

    Joined:
    August 26, 2004
    Messages:
    2,989
    Media:
    36
    Albums:
    1
    Likes Received:
    66
    Trophy Points:
    58
    City, State:
    West Virginia
    Year, Model & Trim Level:
    1993 2dr
    LEFT BANK LEAN RIGHT BANK LEAN ... what this means: there is an oxygen sensor on both sides of the exhause manifold, hence right bank and left bank, both are reading lean, meaning your oxygen sensors most likely need replaced, lucky for you both came up.. on some cars the code only reads bad o2 sensor, not which bank.. i run obd scans every day, its not that bad, youll just get piss poor as mileage
     
  10. TPLYNCH

    TPLYNCH Well-Known Member

    Joined:
    November 19, 1999
    Messages:
    3,196
    Likes Received:
    2
    Trophy Points:
    0
    City, State:
    Brewster, NY
    Year, Model & Trim Level:
    1999 XLS
    Do you have the SOHC 4.0 engine? The info above is correct that the o2 sensors are reading lean. Do not just throw new sensors in though, cause 95% of the time it is another issue that is causing the o2's to read lean. Generally, it's a sign that unmetered air is entering the engine. In the SOHC engine, the intake manifold o-rings leak.
     
  11. Glacier991

    Glacier991 EF Tranny Guru Moderator Emeritus

    Joined:
    February 8, 2003
    Messages:
    9,835
    Likes Received:
    22
    Trophy Points:
    48
    City, State:
    Sacramento, CA 95827
    Year, Model & Trim Level:
    1992 XLT
    AMEN, THANK YOU TPLYNCH!

    I am sorry that we have gotten to the point that well intentioned and intelligent folks have been brainwashed to think every CEL is an 02 sensor waiting to be replaced. I'm gonna post a link and I plead for someone to nominate it for USEFUL THREAD status. I didn't write it. I merely posted it.

    Here it is:

    http://www.explorerforum.com/forums/showthread.php?t=82038

    MORAL: A CEL can be 100's of things, and often they only reflect a problem in a SYSTEM, not pinpoint a bad sensor. (Although to be fair, they CAN)
     
    Last edited: December 18, 2004
  12. mrplow

    mrplow New Member

    Joined:
    December 1, 2004
    Messages:
    47
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    Florida
    Year, Model & Trim Level:
    '98 Sport
    is there anyway to read the code with out one of those testers. I know that on some cars you can put a paperclip into a certain hole on the clip and coun the number of times the light flashes, then look that up somewhere. Can you do this on explorers??
     
  13. dreamr

    dreamr Well-Known Member

    Joined:
    October 5, 2003
    Messages:
    3,658
    Likes Received:
    2
    Trophy Points:
    48
    City, State:
    Lynnwood WA
    Year, Model & Trim Level:
    99 XL / 4x4 / 4.0 ohv
    To check your codes having the OBDII system.

    Under your steering column next to the hood releas is a plastic cover.
    Remove this and you will find a data port. Simply plug in and follow the instructions on your scanner.
     
  14. Robb

    Robb Explorer Addict

    Joined:
    February 13, 2002
    Messages:
    9,716
    Likes Received:
    3
    Trophy Points:
    0
    Nope, not on OBD-II ('96+) Explorers. The codes have to be pulled with a scanner or reader.
     
  15. My98xplorer

    My98xplorer Active Member

    Joined:
    July 28, 2004
    Messages:
    108
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    lakeland fl
    Year, Model & Trim Level:
    1998 Sport
    MY check engine light is on and i had Autozone pull my codes today. 3 different things came up, but i already know its my IAC, but i wanted to see what they said. It said that i was running lean on 2 of the codes, and the other code said that only the factory can tell me what it ment. I know its the IAC because it was howling and i took it off to clean it out, then when i put it back in the light came on. I guess you can only clean them so many times??
     
  16. aldive

    aldive Elite In Memoriam

    Joined:
    January 17, 2001
    Messages:
    24,719
    Likes Received:
    6
    Trophy Points:
    0
    Year, Model & Trim Level:
    1999 XLT
    Say what?

    What was that trouble code number?
     
  17. adz1308

    adz1308 New Member

    Joined:
    December 24, 2004
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    Chicago, IL
    Year, Model & Trim Level:
    99 Eddie Bauer
    I had the same problem on my 99 4.0 SOHC, LEFT BANK LEAN RIGHT BANK LEAN. It was the lower intake mainifold gasket. Easy way to check is to spray carb cleaner towards the intake seals. If the engine starts to idle rough you have a leak.
     
  18. 2talll

    2talll Member

    Joined:
    December 25, 2004
    Messages:
    50
    Likes Received:
    0
    Trophy Points:
    0
    City, State:
    Ansonia, CT
    Year, Model & Trim Level:
    99 Explorer Sport
    Just came across info on other messageboards today about recall 00m12. Ford will replace the intake manifold gaskets- the leaks in the o-rings cause the engine light to come on. You can google it for more info because I'm not to smart when it comes to cars.
     






We Support Our Troops!