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Unread 03-15-2014, 02:17 PM   #1
Xeeh
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Wj Leaking coolant.. pic included

So I came outside to do something and noticed a big wet spot in the driveway. After getting up under the jeep and looking around I found out where it was coming from. Here's a pic right after I wiped it clean and saw it start coming out again. What all do I need to do to fix this? Is there a gasket that goes there? My guess was drain the coolant and replace a gasket. Is there anything else I need to know?

1374375_10202289532134481_830680091_n.jpg  
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Unread 03-15-2014, 02:38 PM   #2
Jer-Bear
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That's the thermostat housing. Yes, there is a gasket that goes inside. A lot of guys use RTV on the outside for a better seal but I only use the gasket. There is s bolt on the top and bottom of the housing, 10mm I think. The gasket is pretty cheap at Autozone or O'Reillys, maybe $4. I'd go ahead and replace the thermostat while you have all that off. But remember how it goes in so you don't install backwards! I made that mistake. After draining all the coolant to remove the housing, refill and bleed the system of air once it gets up to operating temperature. The bleeder valve is an allen head on the right side of the engine bay. Be sure not to torque down the two bolts too much so you don't crush the seal. Good luck!
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Unread 03-15-2014, 02:46 PM   #3
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Replaced mine not to long ago, very easy just 2 bolts. *make sure your engine is cold before takin it apart* did mine in a hurry after driving aroun for an hour and it didn't feel good
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Unread 03-15-2014, 03:13 PM   #4
Xeeh
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You think I should replace the thermostat housing and the thermostat while doing this? The parts are cheap enough
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Unread 03-15-2014, 03:19 PM   #5
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Wouldn't hurt I guess
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Unread 03-15-2014, 05:16 PM   #6
narnwv
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Warning:

Go to the dealer and get the thermostat. It comes with a gasket, is MOPAR, and was almost $2 cheaper than the sticky Autozone ones.

Edit: Get the thermostat from the dealer since you'll need to go there for coolant anyway.
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Unread 03-15-2014, 05:21 PM   #7
pinky2252s
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Quote:
Originally Posted by narnwv View Post
Warning:

Go to the dealer and get the thermostat. It comes with a gasket, is MOPAR, and was almost $2 cheaper than the sticky Autozone ones.

Edit: Get the thermostat from the dealer since you'll need to go there for coolant anyway.
Napa sells HOAT
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Unread 03-15-2014, 05:23 PM   #8
narnwv
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Originally Posted by pinky2252s View Post
Napa sells HOAT
Sure, but since he'll need a thermostat anyway--and I've yet to see an aftermarket thermostat work right/fit right on a 4.7, he might as well get "the good stuff" while he's getting the OEM/cheaper thermostat.
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Unread 03-15-2014, 05:37 PM   #9
pinky2252s
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Originally Posted by narnwv View Post
Sure, but since he'll need a thermostat anyway--and I've yet to see an aftermarket thermostat work right/fit right on a 4.7, he might as well get "the good stuff" while he's getting the OEM/cheaper thermostat.
Ah. As a reference, I used an Advance Auto thermostat about a year ago, and it is holding up just fine. If it ever goes though, ill be sure to get the OEM.
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Unread 03-15-2014, 06:32 PM   #10
Xeeh
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Is it actually cheaper at the dealer? I was gonna get the fluid at NAPA and parts from rockauto, but I guess I'll go check out the dealer monday
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Unread 03-16-2014, 10:31 AM   #11
Jer-Bear
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Originally Posted by Xeeh View Post
Is it actually cheaper at the dealer? I was gonna get the fluid at NAPA and parts from rockauto, but I guess I'll go check out the dealer monday
I personally run green coolant in my '02 with a thermostat and thermostat gasket from O'Reilly's for not a bad price. Been running the green stuff for 5+ years with no problem, even took off the water pump to check the timing cover and it looked great. I've had the thermostat and gasket on there for over a year with no problems. That's just me.
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Unread 03-16-2014, 11:15 PM   #12
Jeeples
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Quote:
Originally Posted by narnwv View Post
Warning:

Go to the dealer and get the thermostat. It comes with a gasket, is MOPAR, and was almost $2 cheaper than the sticky Autozone ones.

Edit: Get the thermostat from the dealer since you'll need to go there for coolant anyway.
x2

My local dealer had the thermostat for $17 and some change with the gasket. The local O'Reilly charges $21.99 with the gasket.

FWIW both the Mopar and O'Reilly are manufactured by Motorad in Israel.
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