Question about 2004 Lincoln Navigator

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I have a 2002 Lincoln LS. It has had the check charging system light on for a few minutes and then the card went dead like a dead battery. I hooked it up to a computer that read the code, alternator load input failed? I replaced the alternator, drove it a few miles and the same stuff happened all over again. Any suggestions on what it may be?

Posted by Stephanie-Danny... on


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JonSnell Electronic

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  • Lincoln Master
  • 31,442 Answers

The alternator will only charge if the ECU tells it to. Check the wiring and cable feeding the alternator for bad connections. It is 15 year old wiring.

Posted on Oct 21, 2017


5 Related Answers


  • 4 Answers

SOURCE: Where is the OBD Connector located on a 2002 Lincoln LS

it is on the drivers side, just past the bottom of the knee bolster on the right side, it is flush with the bottom, that is why it is hard to find

Posted on Jan 27, 2009



  • 235 Answers


it is down under the intake manifold. the intake manifold must be removed to get to it. this vehicle is known for developing a vacum leak in the elbow hose that connects to pcv valve, so ive done a few.

Posted on Feb 19, 2009


Chuck Martin

  • 783 Answers

SOURCE: check engine light on.code is po113.sensor 1 circuit high input

If the only code you have is a P0113 then the answer to your question is no it can not be the oxygen sensor. P0113 indicates that the IAT sensor is reading at -46 deg F. With the computer thinking it is that cold it will need lots of fuel,cold air is more dense and com-pack so more molecules of oxygen and therefore needs more fuel to keep correct air/fuel ratio.
Do you have a way to measure voltage across the sensor?
You should have about 5V coming into the sensor and around 1.5 to 3.0V(depending on the temp) leaving it.

Posted on Mar 14, 2009


Joe Lamb

  • 463 Answers

SOURCE: code p1507,what do i do

Hi there. Sounds like you either need to clean the throttle body.If code still comes back on you need to replace the IAC valve.It on the throttle body and controls the idle and air control to the motor.Hope this helps you.Have a great day...

I’m happy to assist further over the phone at

Posted on Apr 01, 2009


  • 9 Answers

SOURCE: 2002 lincoln ls engine light

These cars are famous for leaky seals where the valve cover interfaces with the cylinder head, at the spark plug journals. They fill with oil, short the coils and cause a misfire. Driving it any significant distance can destroy your catalytic converters ad unburnt fuel ignites therein, creating inferno-like conditions and a fire hazard too. You'll get a "300 code", such as 301 if cylinder 1 is misfiring, 302 for # 2, etc. Pull the coil off the spark plug for that cylinder and if it is moist at all, that's your issue. Have new seals put in, or you'll just keep blowing coils at $50 a whack.

Posted on Apr 11, 2009

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