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Unread 07-13-2010, 03:52 PM   #1
firemedicjth
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2001 TJ Wrangler 
 
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Leaking thermostat

I replaced my water pump and thermostat on my '01. I replaced the gasket (after cleaning the old one off) and I keep getting a leak from the thermostat housing somewhere. I thought it wasn't tight enough and with a slight push I managed to crack and break the old housing. 45 minutes and $60 later I had a new housing and it's leaking also. Any suggestions?

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Unread 07-13-2010, 03:56 PM   #2
cajunfireman
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I had the same problems. I always buy a couple extra gaskets any time that I replace a thermostat. I ended up using some silicone gasket and it hasn't leaked since.
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Unread 07-13-2010, 04:11 PM   #3
lamigra
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I just did the exact same thing! The housing breaks really easy. I ended up with a dremel and wire wheel to get ALL the old gasket off and it hasn't leaked.
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Unread 07-13-2010, 04:18 PM   #4
BlueFlame
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2 common problems:
1. Not getting the tstat in straight, so the housing won't tighten down properly.
2. Not putting the housing on straight and not carefully snugging down the bolts evenly, so it gets tweaked and..you guessed it..cracked.
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Unread 07-13-2010, 05:04 PM   #5
biffgnar
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Quote:
Originally Posted by BlueFlame View Post
1. Not getting the tstat in straight, so the housing won't tighten down properly.
x2! My mistake when a changed thermostat a few months ago.
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Unread 04-14-2011, 12:34 AM   #6
martinCT
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having truble to find Wrangler thermostat in SA ( only one shop seling Mopar's thermostat for 70$????)
this is bit too much....
tryed to fit thermostat from sam other cars...what is a diameter of Wrangler thermostat? temp is 195, that i know....
Anybody know for replacement model ?
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Unread 04-14-2011, 07:46 AM   #7
WakeUpTheSun
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The quadratech thermostat housing is $10 lol
http://www.quadratec.com/products/51209_08.htm
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Unread 04-14-2011, 09:28 AM   #8
vosevichs
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South Africa? Local parts stores don't carry the stat?
I put a couple of dabs of silicone on head then installed the stat. The silicone will hold it in place.
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Unread 04-14-2011, 12:00 PM   #9
martinCT
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Quote:
Originally Posted by vosevichs View Post
South Africa? Local parts stores don't carry the stat?
I put a couple of dabs of silicone on head then installed the stat. The silicone will hold it in place.
SA is not really Jeep country - loots if Toyota’s around...keep about 60% of market....and Land Rovers...
Only one jeep dealer have Mopar parts on killer price of 70-$ USA
Having a Jeep here become as luxury...nonsense
I browse other shops and finally found one today with same temp range, size 48mm DIA, and perfectly fits in housing-cost 8$usa and is made for Golf???
Problem solved, thanks for advices...I just like American cars
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Unread 04-14-2011, 12:20 PM   #10
oakmckinley
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Thermostat goes in first, I know one time I had actually put the gasket on then the thermostat, and it looked funky then I realized my mistake.
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Unread 04-14-2011, 12:46 PM   #11
SilverTJMike
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Wet the gasket per the Factory Service Manual, use a torque wrench and never had an issue.
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Unread 07-31-2012, 06:04 PM   #12
BF511
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A dab of sealant to hold the thermostat while carefully positioning the housing is KEY !
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Unread 11-10-2012, 08:45 PM   #13
JeepJohn92
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I busted my housing too, once. Sealant on the housing then place the gasket, doesnt take too much torque which took me 3 sealants to learn. Just get it on finger tight, both, then torque it down snug then about a quater turn. Let it dry for about it hour and you should be alright. I know its not a Wrangler but hey, its the same basic procedure.
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Unread 11-10-2012, 10:03 PM   #14
chris142
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The thermostat is a very common size. It also fits Chevy V8's (283,327,350, 396,454) up to around 1994 or so. It also fits Ford V8's(289,302,351M,351C,351w,400 and 460s from 1960ish to the last year of the 460 which was the mid to late 90's.
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Leaking , coolant , thermostat , water pump , gasket
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