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Old April 9th, 2014, 04:38 PM   #1
Silver Bullet
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Exclamation 04 Pacifica Electrical Issue

So here is the scoop:

Car periodically was found "dead" in the morning. Dead = no lights, no chime, no crank, nothing.

I have went through about 4 batteries thinking this may have been the problem. 3 tested bad one was still good but they swapped it out anyways. I am thinking a constant discharge-charge cycle is causing them to go bad.

I did a parasitic draw test twice and found nothing out of the normal range. Had a remote start that was reading weird.

Disconnected remote starter still have same problem.

I was thinking this sounds like a module was not shutting down periodically causing a dead battery when left sitting for hours at a time.

Until:

This morning I was on the phone with my wife as she was hooking up the battery charger to jump it. I had her put in on 10amp and it started with in 20 seconds. We all know 10 amps @ 20 seconds is not enough juice to take a battery from stone cold dead to enough to start the car. I have not gotten a voltage reading on the battery while it wont start.

I am now thinking is there a module that is not waking up when the ignition is turned on?

Battery cables are clean. Voltage is good when at idle. It has never not started after being driven around...only not started at our house after sitting.

ground went bad about 2 years ago. Trans line started glowing red hot because it was being used as the ground. I installed a short 4 ga wire to the block. Once I installed this ground her Navigation and motorized hatch started working which had not worked since we bought the car 2 yrs previously.

I need some help on this from guys that are much smarter and have more resources than I.

Let me know your thoughts.
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Old April 9th, 2014, 05:15 PM   #2
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Kill it with fire!
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Old April 9th, 2014, 07:58 PM   #3
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Sounds feasible at this point.
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Old April 22nd, 2014, 10:11 PM   #4
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Turn wheels to the left, look at the trans mount that attaches to the cradle. See if the wiring that runs there is damaged. check the main ground right there also.
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Old April 22nd, 2014, 11:04 PM   #5
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From the drivers or passenger side
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