Question about Ford Mustang

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When i get a jump the car will run but if i turn on headlights it dies

Change the alternator

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Alt.may to shot what year stang?

Posted on Nov 26, 2014

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 1999 Regal GS Super charged, Starts,runs 3-5 sec and dies

i gaurantee that it is the fuel pump ressistor up on the passenger side front behind head lamp assembly you will find the connector with two wires going to it. no need to remove old one install new one and connect wires to new one leave old in. dealer only part but not expensive. dont belive dealer when they try to talk you out of it. This is a kit to relocate a ressistor that has been installed in a poor location. I promise this will fix it. My wifes car did the same thing, took 20 minutes to fix and that is only because i am an electrician and am finicky about where to locate wires etc. the kit comes with installation instructions however they are a little vague. trust me. easy fix. my dealer tried to get me to leave car for repair and said it sounds like the theft detterent system. they were wrong and i was right. dont trust em

Posted on Sep 03, 2008

bunnydawg
  • 5158 Answers

SOURCE: car keep dying

something is not shutting off when you shut off the car... if you have a multimeter check for current drain on the battery with the key off.

Robert

Should be a small miniscule amount of drain (keeps the memory on your radio)

Posted on Sep 20, 2008

  • 6982 Answers

SOURCE: alternator and electrical problems ive changed alternator twice,now clicking noise under dash bat. light comes on and dash lights flicker

check all battey connections and system grounds. Check that the battery has 12v and holds properly when load tested. To check charging system, don't disconnect any battery leads...put a volt meter across the battery. when running, you should have at least 12.9v and volts should not drop. (usual reading is generally at or near 13) at idle with all accessories on voltage should be close to that as well. voltage should not exceed 14.Also make sure that drive belt is not slipping.

Posted on May 12, 2009

  • 1752 Answers

SOURCE: car dies when i turn headlights on

Either your alternator or your battery is dying.

Posted on Nov 06, 2009

  • 3640 Answers

SOURCE: Battery died. Vehicle runs

the best solution is to check voltage at battery, car off. it should read at least 13 volts. with it running at battery should be about 14-14.2 volts. if the alternator does not put out 14-14.2 volts then thats your problem, unless you have a slipping belt or a wire problem.as for the battery, fix voltage and replace or jump start battery. and let it run for about 15 minutes to charge it up. if not replace battery.

Posted on Sep 24, 2010

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If the headlights are dim when the engine stops, the alternator is not charging the battery.

A lead-acid battery will "recover" slightly when the engine is turned off. The recovery may be enough to allow the engine to be started again but if the battery is not being charged adeqautekly, the engne wills top running when the battery voltage falls too much. It won't last long, though. The battery terminal voltage should be around 14.5 Volts with the engine running. If it is 12V or less then the alternator is defective.

There are diodes in alternators to convert AC into DC for the battery. If you "jump start" cars with yours, its alternator diodes or the alternator's internal regulator circuit can be damaged due to excessive loads and/or what is called "inductive kickback" from the other car's starter.

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I would say change the alternator out. Start with the simplest and cheapest factor first. Without the alternator keeping the engine running its hard to put it any gear.

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