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Old 10-24-2006, 05:21 AM   #1
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Not reaching operating temp

Well winter is here once again, this morning it was 40 degrees out, And as usual my 02 wouldn't reach the proper operating temp. The head has a safety feature to prevent overheat in case the thermostat sticks shut. Has anyone else had this problem and if so how did you get it to run at the proper temp when cold out. I've tryed everthing I could think of besides placing a thermastatic valve in the second line at the head.

Thanks for any info Y'all can provide.
Odhinn

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Old 10-24-2006, 05:09 PM   #2
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Have you checked the temperature with a manual gauge? Or are you going just on the temp gauge in the instrument cluster? If you have confirmed with another gauge, then I would guess that you actually have a thermostat that is stuck open, or you have the wrong thermostat installed in the Jeep. Other than that, I got nothin', sorry.

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Old 10-25-2006, 05:10 AM   #3
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Yeah checked with a manual temp gauge. T-stat is good, dealer 195 deg, this is definately getting frustrating. If it idles to long the temp drops to about 120-130 degrees. Which in turn trips my check engine light and puts the computer/engine in a cold run condition. Wouldn't be a big deal except I'm a little worried about having a rich run condition from home all the way to work. The head works great for the Texas heat and if the T-Stat slams shut but if I get transfered to Minnesota, I would definately have problems. I was actually thinking of putting a heater hose manual valve in the line linked with a cable in the cab (like the old Manual chokes). I would just have to get in the habit of shutting it off on cold days until the jeep warmed up.

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Old 10-25-2006, 07:29 AM   #4
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Did the dealer recently replace your t-stat? If not, it could be bad. I would definitely try to replace that if it hasn't been in the last couple years. They are only a few dollars at Napa...
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Old 10-25-2006, 11:38 AM   #5
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Thats the first thing I checked, I changed it with a dealer part just to make sure. I guess I will pull the houseing off again to verify, it does actually act like a bad thermostat, and i have gotten parts before that were bad out of the box. So I have a project on my days off along with pulling my lights and light bar off the top of the jeep. I just have to clear a spot in the garage due to the home owners association frowning on people working on their vehicles in their driveways.
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Old 10-25-2006, 02:43 PM   #6
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to heck with them you pay for the joint is what i say
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Old 10-25-2006, 03:41 PM   #7
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Now, I know the homeowners association is just trying to keep the place nice, but, if you own the house, you should be able to work on your stuff in the driveway. Period. Did you hear about the HOA that won a case against a veteran who put a flag pole in his yard, lights and all so he could fly the flag at night. Court ordered to take it down after he fought the HOA to keep it. That's ridiculous.
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Old 10-25-2006, 04:05 PM   #8
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Something wrong with that, imo.

I don't think there is anyone big enough around here to make me take my flag down.
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Old 10-25-2006, 08:04 PM   #9
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Heck I have even heard somewhere up north (cant rememeber where exactly) a family was evicted and lost their home to their HOA because they painted their house without permission. It's amazing how powerful they have gotten. Give me 1000 acres and i will build my house right in the middle of it.
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Old 10-26-2006, 07:59 AM   #10
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I hate to take the side of the HOA on this one, but as a builder consultant I can say that we are required to share all of the restrictions of the HOA before a purchase is made. So if they don't fit what you are looking for, there is always somewhere to purchase. I agree that some are a litle crazy, but when your neighbor parks his '73 Gremlin on the front yard to rot while you are trying to sell your home, you appreciate having a HOA around...
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Old 10-26-2006, 12:50 PM   #11
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Quote:
Originally Posted by Odhinn
Heck I have even heard somewhere up north (cant rememeber where exactly) a family was evicted and lost their home to their HOA because they painted their house without permission. It's amazing how powerful they have gotten. Give me 1000 acres and i will build my house right in the middle of it.
I hear you on that and think of all the wheeling you can do on a 1,000 acres.
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Old 10-28-2006, 02:58 AM   #12
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I think I finally narrowed it down and its a strange one. The fan clutch is on permanently for some reason so After replacement I will have to cut it open just to see why. Ive seen them not engauge solidly before but have never seen them stick on. Oh yeah, the T-stat checked good but replaced anyway.
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Old 10-28-2006, 08:04 AM   #13
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I love obscure problems! Gotta love Jeeps!
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I like "prick".

Go ahead...quote me on that.
"Hold my beer while I kiss your girlfriend... you have to be good for something"

--Aaron Pritchett

If you have to ask what it is or what it does, you don't need it, and you will need help to install it!
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Old 10-28-2006, 04:43 PM   #14
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Quote:
Originally Posted by Odhinn
I think I finally narrowed it down and its a strange one. The fan clutch is on permanently for some reason so After replacement I will have to cut it open just to see why. Ive seen them not engauge solidly before but have never seen them stick on. Oh yeah, the T-stat checked good but replaced anyway.
Uh, that's not that strange. Just replace the fan clutch, you'll be good to go. I think that is a common failure for the fan clutch.
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Old 10-28-2006, 08:24 PM   #15
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I have had at least 4-5 fan clutches fail like that. It's just a pain in the a$$. Makes you want to go to an electric, just to make things easier.

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