2002 GT KILLS BATTERY - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 19 Old 09-07-2016, 02:34 PM Thread Starter
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2002 GT KILLS BATTERY

If it sits more more than a day or two the battery goes stone dead. Odometer has ------- across it when key is off and out of switch and the check engine light is dimly lit. The instrument cluster should not have power when key is off right? Any ideas would be helpful.

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post #2 of 19 Old 09-07-2016, 05:10 PM
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Yes, either you have a bad ignition switch or something has a short around it or the multifunction switch.

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post #3 of 19 Old 09-07-2016, 05:25 PM Thread Starter
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Also when running it has no check engine light and the odometer reads correctly. Starts great no dragging or anything.
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post #4 of 19 Old 09-07-2016, 05:31 PM Thread Starter
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ignition switch is cheap enough to replace to see if that clears it up. thanks
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post #5 of 19 Old 09-10-2016, 11:14 AM
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before throwing parts at it

why dont you find the source of the current draw?
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post #6 of 19 Old 09-10-2016, 12:47 PM Thread Starter
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I am going to put my meter on it tomorrow, but I did go ahead and get the switch for 12.00 to have it with me just in case. I was just asking in hopes that someone else might have already fixed a similar problem.
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post #7 of 19 Old 09-10-2016, 10:10 PM Thread Starter
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Ok so #6 maxifuse under the hood is pulling 0.5 volts with key off. Owners manual says instrument cluster and pcm. Pulled fuse and car cranks but check engine light comes on and dome/trunk lights don't work. Also power locks/keyless remote stops working. The ---- on the odometer and dim check engine light went away. I left the fuse out and I'm gonna see if battery is still charged tomorrow. Any ideas?
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post #8 of 19 Old 09-10-2016, 10:14 PM Thread Starter
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I might pull the cluster and reinstall fuse to see if draw is still occurring with it unplugged. Every heard of a cluster being shorted causing this?
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post #9 of 19 Old 09-11-2016, 09:53 AM
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you measred a voltage potential NOT current draw

you need to find the circuits drawing current
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post #10 of 19 Old 09-11-2016, 01:58 PM Thread Starter
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i found it this am #39 fuse. the dreaded gem. ugh.

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post #11 of 19 Old 09-11-2016, 07:12 PM
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how many amps??
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post #12 of 19 Old 09-11-2016, 09:49 PM Thread Starter
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My meter crapped out so I had to borrow a friends. Set on 200ma and probing across the top of the mini fuse in the interior fuse box I got 3.9.
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post #13 of 19 Old 09-12-2016, 09:48 AM
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3.9 milli amps is not a draw to worry about

are you sure its not 3.9 amps??
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post #14 of 19 Old 09-12-2016, 08:52 PM
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He went in parallel of the fuse, reading is useless.
OP, do you need more help with this? In order to read current you have to be in series with the circuit or use a dc clamp on.
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post #15 of 19 Old 09-12-2016, 11:23 PM Thread Starter
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I got a gem on the way. Yes I need all the help I can get but I'm handicapped now because my meter crapped out. I'm just gonna install new gem and wait on my meter to get back from getting repaired. Thanks for all the input so far.
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post #16 of 19 Old 09-13-2016, 12:31 AM
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gem on the way?

how do you know anything is wrong with it?

you pooched your meter's fuse

by not using it correctly??

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
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post #17 of 19 Old 09-13-2016, 09:24 AM Thread Starter
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No I checked the fuse and replaced it just to be sure. It was a older Snap on one. I sent it to be repaired. I have a friend with a mustang salvage yard and got one cheap just to see if it fixes my problem. I will know more in a couple of days.
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post #18 of 19 Old 09-13-2016, 06:44 PM
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cheap meter from a friend from a salvage yard?

89 GT gr-40, KB2200(10psi), tweecer R/T,LC-1, 22gal cell, w/tailpipes.
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post #19 of 19 Old 09-14-2016, 12:04 AM Thread Starter
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Got a gem cheap to try from a friends salvage yard. I sent meter off to get repaired.
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