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Unread 07-28-2009, 04:55 AM   #1
Wrangler98
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2012 JK Wrangler 
 
Join Date: Jan 2003
Location: Idaho
Posts: 144
Where is the thermostat?

I was changing the oil and just checking things out in the engine bay yesterday. I followed the upper radiator hose to where it connects to the motor and was unable to find a removable water neck. The hose just connects to a large metal section on the front of the block. Where is the thermostat located at on this motor? I dont need to replace it, just wondering where it is for future reference.

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2012 Jeep Wrangler Sahara-3.6/AT
1993 F-250HD SC 4X4-7.3/5spd ATS Turbo
1986 F-250HD 4X4-6.9/T19
1967 Ford Mustang-351W/4spd
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Unread 07-28-2009, 09:06 AM   #2
jeeplibby1
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Join Date: Oct 2008
Location: Leander
Posts: 172
This is for a 2002, but still a 3.7L. It looks as though it is actually where the lower hose connects to the engine block to the left of the pulley. Start on page 21.

http://www.scribd.com/doc/3287046/Je...7-Cooling-3-7L
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Unread 07-28-2009, 12:29 PM   #3
jsc7002
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1966 CJ5 
 
Join Date: Apr 2008
Location: Wichita, Kansas
Posts: 1,428
towards the bottom on the passengers side, just look for a good sized hose coming off the motor and thats probably going to be it.

if you need to change the thermostat, they are a little bit of a pain and you need something under it to catch the fluid thats going to come out
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Unread 07-28-2009, 01:04 PM   #4
Wrangler98
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2012 JK Wrangler 
 
Join Date: Jan 2003
Location: Idaho
Posts: 144
That kind of sucks. Thanks though, at least now I know.
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2012 Jeep Wrangler Sahara-3.6/AT
1993 F-250HD SC 4X4-7.3/5spd ATS Turbo
1986 F-250HD 4X4-6.9/T19
1967 Ford Mustang-351W/4spd
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Unread 07-30-2009, 12:45 AM   #5
Xjay98
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1998 XJ Cherokee 
 
Join Date: Mar 2009
Location: Bolingbrook, IL
Posts: 69
Be very careful with the 2 housing bolts. If you're lucky you wont break any of them. Use BP blaster if they are hard to get out and take your time. The aluminum side of the housing loves to bond with the steel bolt. I had an easy radiator and T-stat change that went to hell.
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