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How hard to install thermostat?

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Old May 27, 2008 | 03:54 PM
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Default How hard to install thermostat?

I just picked up a 98 z28, the previous owner ran without a thermostat. I'm getting it tuned tomorrow and would like to put in a 180* t-stat. just curious as to how difficult it is to replace it in these ls1's?
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Old May 27, 2008 | 03:59 PM
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It's not hard. Just drain the radiator, unbolt the housing, swap stats, and reverse of removal.
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Old May 27, 2008 | 04:04 PM
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that's good... i've owned a truck my whole life and its super easy on that... i was hoping there wasn't some funky setup taht would make it really hard.
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Old May 27, 2008 | 04:08 PM
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btw, i've read a little bit on here about how the thermostats won't fit in the housings... is there a part number for the t-stat I'm looking for (for a dummy like me). i've got autozone, advance, and o'rielly all right near me..
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Old May 27, 2008 | 04:34 PM
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I better get some pics and numbers man I'm so curious...
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Old May 27, 2008 | 04:35 PM
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www.installuniversity.com has a write up on it check it out. not hard at all just takes a little time
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Old May 27, 2008 | 04:37 PM
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Originally Posted by connexion2005
I better get some pics and numbers man I'm so curious...
are you following my threads?
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Old May 27, 2008 | 04:57 PM
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Originally Posted by 5301113
www.installuniversity.com has a write up on it check it out. not hard at all just takes a little time
thanks. anyone on the part number? I'd hate to get this thing off just to have to head back to the store.
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Old May 27, 2008 | 04:59 PM
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Originally Posted by bigburb
I just picked up a 98 z28, the previous owner ran without a thermostat. I'm getting it tuned tomorrow and would like to put in a 180* t-stat. just curious as to how difficult it is to replace it in these ls1's?
Here's the install instructions that came with my powerstat:
http://i275.photobucket.com/albums/j...r/scan0001.jpg
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Old May 27, 2008 | 05:02 PM
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Originally Posted by bigburb
thanks. anyone on the part number? I'd hate to get this thing off just to have to head back to the store.
Here are the part numbers for hypertech powerstats from Jegs:
http://www.jegs.com/p/Hypertech/749154/10002/-1/11189
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Old May 27, 2008 | 07:02 PM
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went by orielly, they only had a 190, advance only had 186, i guess 186 is close enough to 180 to deal with. they even said the 186 was OEM. i figured it was up around 200
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Old May 27, 2008 | 08:48 PM
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well i got it installled with minimal effort... but the SES light came on. weird.
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Old May 27, 2008 | 10:59 PM
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No worries man its just random with the cam and the stock tune and coincidental it came on at that time. That is as long as you didn't crank the car with any of the other sensors unplugged. Then yes that would instantly throw a code.

Oh and im not following your threads really I'm just all over these boards all the time and keep catching your posts...lol. I swear I'm not a stalker but I miss my car and like to keep up with her...
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Old May 28, 2008 | 06:15 AM
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well its installed, not as hard as i thought it would be. is it normal for the temp gage to show 210 even though the thermostat is supposed to open at 186? is that just the fan on temp?
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Old May 28, 2008 | 11:20 AM
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Originally Posted by massls1guy
Here are the part numbers for hypertech powerstats from Jegs:
http://www.jegs.com/p/Hypertech/749154/10002/-1/11189
GET This one

Originally Posted by bigburb
went by orielly, they only had a 190, advance only had 186, i guess 186 is close enough to 180 to deal with. they even said the 186 was OEM. i figured it was up around 200
They came with 180
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Old May 28, 2008 | 12:02 PM
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I would have gotten that one had I more time, but its getting tuned today, 186 will have to do!
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Old May 28, 2008 | 03:29 PM
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"is it normal for the temp gage to show 210 even though the thermostat is supposed to open at 186?"

Mine did that till I got all the air out.
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Old May 28, 2008 | 03:47 PM
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99up fbods got the "fake" water temp gauges. They display a dead on 210 degree at all times the car is warmed up and only change when the temp hits a specified degree. Basically they can be 20-30 degrees off the actual temp...
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