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car wont start


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thunderbird64
User

Dec 22, 2013, 11:15 AM

Post #26 of 46 (1503 views)
Re: car wont start Sign In

it still wont start


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Dec 22, 2013, 11:17 AM

Post #27 of 46 (1502 views)
Re: car wont start Sign In

Your going to need to test the electrical portion of the starting system by taking some voltage measurements. Your going to need a volt meter. If you can get your hands on a digital volt meter, that would be a good tool to use to see if you can find the source of your issue.





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(This post was edited by Discretesignals on Dec 22, 2013, 11:19 AM)


thunderbird64
User

Dec 22, 2013, 11:31 AM

Post #28 of 46 (1496 views)
Re: car wont start Sign In

ok thanks i noticed alot of wires under the dash are spliced together


Discretesignals
Ultimate Carjunky / Moderator
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Dec 22, 2013, 11:33 AM

Post #29 of 46 (1495 views)
Re: car wont start Sign In

Does this have an aftermarket alarm or remote start system installed?





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thunderbird64
User

Dec 22, 2013, 11:39 AM

Post #30 of 46 (1490 views)
Re: car wont start Sign In

no it has an aftermarket stereo and theres a wire running along the door to the trunk


Discretesignals
Ultimate Carjunky / Moderator
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Dec 22, 2013, 11:50 AM

Post #31 of 46 (1489 views)
Re: car wont start Sign In

One thing that you can do is try to isolate where the problem is by separating the starting system into two parts. What I mean is that there is an electronic starter relay in the fuse box under the hood that is used to control the high current side of the starting system. The high current side is from the relay to the starter solenoid to the starter motor itself. The low current side is the control side that comes from the ignition switch(PCM) to the starter relay. You can do what is called a bypass test.

To do a bypass test remove the starter relay from the relay cavity in the fuse panel. Take jumper wire and connect terminal 87 to 30 in the relay cavity. There are numbers on the bottom of the relay that correspond to the terminals in the relay cavity. When you install the jumper this will send battery voltage to the starter solenoid and should make the starter motor crank the engine. Make sure the ignition is turned off and the transmission is in park when you do this.

The results of this test will help you isolate which side of the starting system you need to make your checks. Your owners manual should give you the location of the starter relay in the fuse panel.

Example of relay bypassing:






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(This post was edited by Discretesignals on Dec 22, 2013, 12:07 PM)


thunderbird64
User

Dec 22, 2013, 11:59 AM

Post #32 of 46 (1484 views)
Re: car wont start Sign In

thanks but i dont have the owners manual


Discretesignals
Ultimate Carjunky / Moderator
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Dec 22, 2013, 12:05 PM

Post #33 of 46 (1482 views)
Re: car wont start Sign In

Making it difficult, aren't ya? LOL <kidding>







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thunderbird64
User

Dec 22, 2013, 1:33 PM

Post #34 of 46 (1474 views)
Re: car wont start Sign In

sorry bought car used


thunderbird64
User

Dec 22, 2013, 1:34 PM

Post #35 of 46 (1471 views)
Re: car wont start Sign In

thats the box at front by hood release?


Discretesignals
Ultimate Carjunky / Moderator
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Dec 22, 2013, 1:38 PM

Post #36 of 46 (1466 views)
Re: car wont start Sign In

Yes...the one by the hood release.





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thunderbird64
User

Dec 22, 2013, 1:53 PM

Post #37 of 46 (1459 views)
Re: car wont start Sign In

thanks


Discretesignals
Ultimate Carjunky / Moderator
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Dec 22, 2013, 2:12 PM

Post #38 of 46 (1458 views)
Re: car wont start Sign In

Just be careful and don't jumper the wrong terminals. That would be a bad thing. It wouldn't be a bad idea to install a fuse (around 15 amp) in your jumper, just in case.

connect terminal 87 to 30 in the relay cavity





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(This post was edited by Discretesignals on Dec 22, 2013, 2:15 PM)


thunderbird64
User

Dec 22, 2013, 2:15 PM

Post #39 of 46 (1452 views)
Re: car wont start Sign In

ok doing it


Spanky
Novice

Dec 25, 2013, 12:41 AM

Post #40 of 46 (1445 views)
Re: car wont start Sign In

Check your battery connections. Also the ground wire. A loose or corroded cable will cause all kinds of trouble.


thunderbird64
User

Dec 25, 2013, 1:38 AM

Post #41 of 46 (1441 views)
Re: car wont start Sign In

had to send it to a shop


Discretesignals
Ultimate Carjunky / Moderator
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Dec 25, 2013, 7:23 AM

Post #42 of 46 (1433 views)
Re: car wont start Sign In

Let us know what they figure out. Smile





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thunderbird64
User

Dec 26, 2013, 6:41 PM

Post #43 of 46 (1426 views)
Re: car wont start Sign In

got car back it was the starter still need an altonater


Discretesignals
Ultimate Carjunky / Moderator
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Dec 26, 2013, 6:50 PM

Post #44 of 46 (1424 views)
Re: car wont start Sign In

Glad to read they figured it out. That relay bypass test is a good way to find out which direction in the starting circuit to focus on. They may have used the same test or just checked for power at the starter bat and S terminal.





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thunderbird64
User

Dec 26, 2013, 6:52 PM

Post #45 of 46 (1419 views)
Re: car wont start Sign In

hope so now for altanator battery lite comes on and off when i drive


Discretesignals
Ultimate Carjunky / Moderator
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Dec 26, 2013, 7:05 PM

Post #46 of 46 (1415 views)
Re: car wont start Sign In

With the engine running wiggle the connections on the alternator while someone watches for the charging light. Could be a bad connection, wiring problem, or the alternator itself.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.






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