Question about 2004 Ford Taurus

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Will not start,battery good,checked all basics.can problem be with anti theft and key

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  • Anonymous Aug 01, 2008

    changed starter no start anti theft system i need to know how to reset it

  • second_gen Aug 02, 2008

    checked battery tested the starter replaced the batter terminals still wont start

  • TexasIvory Sep 12, 2008

    2004 Will not start - no sounds when try to start, battery good, new starter 11 months ago - 6,000 miles driven since then. The not starting thing happened once, then started fine for about 3 weeks. Then suddenly wouldn't start yesterday. Repair shop is saying they think the anti-theft system is kicking in and keeping it from starting, possibly caused by a bad key. Is this possible?

  • n8g8 Oct 06, 2008

    drivers air bag went off now car doesn't start does nothing when you turn key!

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Thanks to everyone for your ideas.

Turned out it IS a bad key. In answer to the symptoms --- no sound whatsoever when you try to start it. But the theft light on the dashboard blinks very fast when you try to start the car with the bad key. We did test it by using the good keys and then the bad key several times. The bad key NEVER started the car - the good keys always did.

A couple of weeks have passed since then, and no problems.

Posted on Sep 26, 2008

Usually chip in key

Posted on Sep 26, 2008

Will engine crank over try nuteral still no crank try hittin on starter could be bad starter

Posted on Jul 27, 2008

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My cadillac 04 cts wont start. Thinks its the scurtiy feature. Any1 have a idea


Is the security light lit ? Car an pad lock symbol . If any of these are lit it is the anti-theft system . Does the engine crank over but won't start an run ? The anti-theft system will allow the engine to crank but not start , disables fuel injectors . If the anti-theft light is lit there are DTC'S diagnostic trouble codes stored in the theft deterrent module an or the ECM .
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1 Answer

How to disconnect anti theft


It is hard to give a definite answer because I don't know which and how many wires were damaged...Anti theft can be a real HEADACHE.....You can begin by disconnecting battery cables..Use your VIN number for parts,Get new ignition with a programmed factory key from dealer only.....They probably blew certain fuses and or relays when this happened...Or maybe not..Install new ignition connect battery cables..,turn switch on just to check for bad fuses and relays...Disconnect battery again...replace any fuses blown...Connect battery again...( Each time you disconnect battery it resets the computer system and should clear anti theft codes..)..make sure all doors are unlocked by using door remote key fob....Now see if vehicle will crank..If all is done correctly it should start...However I don't know how much damage was done.....It may possibly be too much work to totally disengage anti theft....You could start with removing all fuses and relays related to anti theft but disconnect battery before...I DO NOT RECOMMEND trying to disable the theft system.....You may create more headaches that you want.......Begin by trying what I described just to be safe...!!....

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Jun 10, 2011 | 1998 Buick Regal

1 Answer

Dash dead ,turn key nothing happens,no click,battery good,ignition switch is new,starter turns over when jumped with screwdriver,lights,horn,acc.work.


It there is a problem with the dash, there is probably no power to the anti theft module in your ignition. The car is in anti theft mode due to not being able to read your key transponder. Basically if it cant read the key, it thinks its being stolen. Either fix the dash lights, or fully bypass the security. All the security info you need is on here including how to bypass it.
http://vatspasslockpasskeysecurityhelp.yolasite.com/

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1 Answer

Rx8 2008-My battery was dead after being stored for 5 months. I did not not disconnect the battery (I know I should have). I had my battery jumped with my husband's car. As soon as I connected the cables...


You should have disconnected the battery and fully charged it before starting the car.
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Charge the battery fully, then reconnect it and see if that helps.

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2 Answers

The car wont start, the brake pedal is locked like the anti-theft is active, the anti theft light is flashing when the keys are in the ignition. when i try to turn it on it doesnt turn over, just makes...


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