Question about 2003 Ford Explorer

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2003 ford explorer 4.0 no ckeck engine light working

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  • squeely May 07, 2015

    Hi mark sims, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?

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  • Ford Master
  • 2,963 Answers

What? YOiu mean your have error codes but the check engine light does not come on. Normal operation is no check engine light is on. When there is a sensor failure the engine "brain" detects a problem and set's error codes. And this "set" turns on the check engine usually with a red light. Other wise there is a problem with your engine's brain (ECU) or other names.

Posted on May 25, 2015

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  • 2 Answers

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Posted on Jan 02, 2017

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  • 625 Answers

SOURCE: check engine light codes, p0171,

this fords have very comun problems with maf sensors geting contaminated, if you have not or can hear any vacium leaks, the problem is goin to be a conataminated mas air flow snsor (maf)
allow the engine to cold down for at least 15minutes and the remove the air filter hosing and inside has to have a sensor, clean the two liitle resistors inside with brake or carburetor cleaner, allow it to dry and reinstall it.
if this inf help please mark it as fixya ranking after you try what i said

Posted on Jun 30, 2008

moparownr
  • 667 Answers

SOURCE: 2003 Ford Explorer Fan Blower Motor

Jeff, If I understand you correctly you say your blower motor only works on high? check your blower motor resistor, located next to blower motor. The resistor makes the other speeds availiable, high bypasses the resistor, let me know if that fixes you up

Posted on May 27, 2009

  • 16 Answers

SOURCE: 2003 ford explorer battery light on

Are you sure the alternator isnt "over" charging? if not, you may have a "loose" connection somewhere with the cables, or a malfunction in the dash cluster. Also, are you positive the battery is forsure good?

Posted on Jun 02, 2009

SOURCE: 2003 ford explorer blower motor works but weak

The doors in the blower/heater/evap housing are sticking because of an issue with the vacuum or elec servo motors or improper computer command

Posted on Sep 28, 2009

  • 18 Answers

SOURCE: how do i reset the check engine light on my 2003

Unplug the battery for about 10 min then plug it back up start the engine. the computer should reset, if the light comes back on then u still have problems.

Posted on Jan 07, 2010

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1 Answer

2003 ford explorer xlt battery good but engine will not turn over


Keep in mind that the engine takes a lot more Amps to turn then it takes to light lights and open windows.
If it is as cold outside by you as it is here, a weak battery may not turn over an engine even with lights lighting and windows opening. First thing... clean connections at the battery

Jan 05, 2016 | 2003 Ford Explorer

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Explorer 2003 break lights and signal lights do not work on the back. Third break light on gate works


Have you checked the stop lamp isolation relay on the engine compartment fuse box? I think that could be damaged. Good luck.

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Mar 11, 2014 | 2003 Ford Explorer

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I got a 2005 ford explorer. the check engine and the check advancetrac message comes on. how can i fix this?


Lincoln LS or 05 Explorer?

Check for Codes,you should know and have done that already

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Sep 24, 2012 | 2002 Lincoln LS

1 Answer

Electric windows and radio stopped working in my 2003 Ford Explorer XLT and the door ajar light randomly comes on.


check for fuse at the engine compartment for windows.For door ajar spray lubricant on all door latches and try to close/open several times.

Jan 31, 2010 | 2003 Ford Explorer

1 Answer

How do i reset the check engine light on my 2003 ford explorer sport trac?


Unplug the battery for about 10 min then plug it back up start the engine. the computer should reset, if the light comes back on then u still have problems.

Jan 04, 2010 | 2003 Ford Explorer Sport Trac

1 Answer

P2195 CODE ON 2003 FORD EXPLORER SPORT TRAC 4.O SOHC. I CHANGED OUT ALL THREE OXYGEN SENSORS, AS ADVISED, AND STILL COMING UP WITH P0171, P0174, AND NOW P2195. HAVE ALSO CHECKED ELECTRICAL CONNECTIONS,...


Hello,
Very common concern with the Explorer, Explorer Sport Trac and Ranger with the 4.0l SOHC engine! The upper and lower intake manifold gaskets fail, causing vacuum leaks..It can be Extremely difficult to detect these leaks, because they only leak intermittently (usually in the AM after a cold soak)... As the engine warms up they seal back up! Sometimes the vehicle will idle rough, surge or stall after initial start up, then the symptoms will clear after it gets to operating temperature... Usually there will be no driveability symptoms at all, except the engine light coming on and setting lean codes.. The gaskets have been redesigned to correct this concern..


Bill Andrade Ford Master Technician/ASE Master Technician

Sep 22, 2009 | 2003 Ford Explorer Sport Trac

1 Answer

2003 ford explorer sport turn signals blink rear brake lights


The ford explorer sport track. Will have a short either at the plug of the multi-function switch or 6 inches down where the column bends the wires during tilt.

Sep 05, 2009 | 2003 Ford Explorer Sport

1 Answer

When my trailer is hooked to my 2003 explorer all the lights work except for the running lights.


Sorry have to ask. Did everything work before? Does vehicle have one color for blinkers (amber) & another for (red) brake lights?. Is it a flat 4 connection or 7 pin?

Aug 25, 2009 | 2003 Ford Explorer

1 Answer

Idle too high


The throttle linkage may be sticking. May have a vacuum leak at the intake manifold or with the hose connections.

Jan 01, 2009 | 1999 Ford Explorer

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