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  #1  
Old 08-03-2014, 08:37 AM
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Starter issues

Hello all. New here. I have a 2005 cherokee limited with the 5.7 hemi. My starter wasn't working all I would get is the classic clinking sound. Battery is good so I knew that wasn't it. Now I swapped out starters went to start it and clink again. Brought the starter back and it bench tested good. Know upon installing the second time I noticed that Missed a wire. Earlier I connected the main positive and the silonoid wire. Then I saw the third wire. I connected that with the positive went to reconnect the battery and sparks and molten lead start going. Obviously the other wire is the negative or a grounding wire. Here is the question. WHERE THE HECK DOES IT go????

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  #2  
Old 08-03-2014, 09:17 AM
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Re: Starter issues

Not familiar with the Cherokee, but normally the startermotor ground comes from a thick ground wire connected to the engine block.
Attached how it looks on a WK 5.7, expect it to be more or less the same on yours.
Attached Files
File Type: pdf 5.7 ground lug G105.pdf (321.4 KB, 4 views)
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Old 08-05-2014, 06:48 AM
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Re: Starter issues

My jeep is not running and I figured out the issue. The grounding strap that goes from the firewall to the head on the passenger side was frayed to the point that there was maybe 5 strands holding it together. I ran another ground wire to the valve cover and it came to life. I still have no clue what that 3rd wire goes to but we just fastened it to the frame.

Next project.....ball joints.
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Old 08-05-2014, 08:11 AM
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Re: Starter issues

Quote:
Originally Posted by Kowalzekc View Post
My jeep is not running and I figured out the issue. The grounding strap that goes from the firewall to the head on the passenger side was frayed to the point that there was maybe 5 strands holding it together. I ran another ground wire to the valve cover and it came to life. I still have no clue what that 3rd wire goes to but we just fastened it to the frame.

Next project.....ball joints.
You didnīt open the manual page which i had attached with my post above which is showing the three wires at the starter. The grounding strap at the head is, i believe, not made for the starter current and was most probably damaged due to the high starter currents. The attached manual page shows the third wire attached to the engine block.
If the thick ground wire is attached to the body, then the high starter currents still go through the thinner ground strap at the firewall and will fry it again over time.
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Old 08-05-2014, 08:30 AM
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Re: Starter issues

Quote:
Originally Posted by Frango100 View Post
You didnīt open the manual page which i had attached with my post above which is showing the three wires at the starter. The grounding strap at the head is, i believe, not made for the starter current and was most probably damaged due to the high starter currents. The attached manual page shows the third wire attached to the engine block.
If the thick ground wire is attached to the body, then the high starter currents still go through the thinner ground strap at the firewall and will fry it again over time.
Correct. I didn't notice that sorry. I should have stated that my jeep is running. Typo on my part. I'll have to figure out if it's worth moving that ground back to the block as it is running great now.
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Old 08-05-2014, 08:45 AM
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Re: Starter issues

When iīm not wrong is that third wire there for the return current from the starter. Since this current is very high, it needs to go through a thick wire (to prevent electrical losses in the wire and heating up of the wire) A too thin wire can/will heat up a lot even until glowing red and will finally melt away. The starter current will use any way to ground it can find, so can cause even more serious damage to other components.
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