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'13 JK Overheating

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Old 03-30-2015, 06:13 PM
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Default '13 JK Overheating

I just got my Jeep back from the collision shop today, and they said one of the techs broke the mount for the engine hoist while removing the engine. The mount just happens to be on the same piece of aluminum that the entire pulley mounts onto. Everything was fine until I drove it about 10-12 miles and I saw the coolant temp on my Bullydog go straight to 238 degrees. I was close to home so I pulled in and the fan was running full speed. Is it possible the tech (I'm assuming he's a new guy) installed the thermostat backwards? or could something else be wrong? Either way I'm going to call the collision shop in the morning. Or should I just call the dealer?

The new part is the aluminum that's not covered in mud
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What I'm pretty sure is the thermostat
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coolant level after it was sitting for about an hour, coolant 170 degrees
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Old 03-30-2015, 06:42 PM
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They were lifting at that hole in the casting next to the alternator?
Old 03-30-2015, 06:52 PM
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Originally Posted by ronjenx
They were lifting at that hole in the casting next to the alternator?
That's what I'm assuming, he said it broke when they were pulling the engine.
Old 03-30-2015, 07:00 PM
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Originally Posted by ChairRepairHeatnAir
That's what I'm assuming, he said it broke when they were pulling the engine.
That's what I thought. The engine isn't supposed to be lifted at that point.
Notice it's not used in the proper method to do it.


Old 03-30-2015, 07:00 PM
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More than likely they didn't get all the air bleed out of the cooling system when refilling the cooling system. This can actually be tricky to do and will deff cause over heating.... Jack your front end up to an angle that allows the radiator fill to be the absolute highest point in the cooling system. Then start the truck turning the heater to full blast, let it run till it comes to operating temp. This should bleed the system of any air pockets. If this doesn't work it could need to be pressure bled which most established automotive shops will have. Hope this helps, we run into this problem often in our body shop normally the issue arises when the radiator fill is not the highest component in a cooling system.

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Old 03-30-2015, 07:13 PM
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Originally Posted by karmynsbeep
More than likely they didn't get all the air bleed out of the cooling system when refilling the cooling system. This can actually be tricky to do and will deff cause over heating.... Jack your front end up to an angle that allows the radiator fill to be the absolute highest point in the cooling system. Then start the truck turning the heater to full blast, let it run till it comes to operating temp. This should bleed the system of any air pockets. If this doesn't work it could need to be pressure bled which most established automotive shops will have. Hope this helps, we run into this problem often in our body shop normally the issue arises when the radiator fill is not the highest component in a cooling system.

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Cool. I'll try this tomorrow morning.
Old 03-30-2015, 07:17 PM
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Also be sure to remove the rad cap while doing so that crucial lol and I'm an idiot for not explaining that

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Old 03-30-2015, 07:23 PM
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Originally Posted by ronjenx
That's what I thought. The engine isn't supposed to be lifted at that point.
Notice it's not used in the proper method to do it.
Now it makes sense why the owner of the shop sounded a little irritated when he told me what happened.
Old 03-30-2015, 07:32 PM
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Originally Posted by karmynsbeep
Also be sure to remove the rad cap while doing so that crucial lol and I'm an idiot for not explaining that

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Good point. Otherwise I'd just be sitting there looking like a jackass running at idle with a Hi-lift holding my Jeep up. Dumb question - Does it have to be on jacks, or can I just park it on a steep grade?
Old 03-30-2015, 07:51 PM
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Steep grade is fine it's the angle that matters not the way in which it gets there


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