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Old 12-28-2008, 12:22 PM   #1
wildman
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Mad t-stat

i know another one. mt t-stat is stuck open, my guage reads about 1/4 the ects is new and the connector is good. the ects is brass.the t-stat i think is the original because i can not get the bolts remove from the housing an ideas. i think the bolts are seize where they are at. the car is a 1997 sl2 with 205,000 miles on it. who ever had the car before me did put a new connector on it, but the spliced it instead of soldering it,i think that might be the problem, but not sure. i still would like to put a new t-sta in it. i lve in PA and in does get a little nipy here. i am new on this forum and thanks for any insight. what they should have done was put studs in with nuts. put steel in to alumanum seems kinda stupid.
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Old 12-28-2008, 12:37 PM   #2
redkees@msn.com
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2004 VUE 2.2L
2008 AURA XE
Default Re: t-stat

Spray some PB Blaster on those T stat bolts and let it soak for awhile.
Then use a 6 point socket, (I think they are 10mm bolts) and try to get them off.

I would solder your ECTS wire connector. If the connection is not good then it is as if the ECTS is bad--no signal is sent to to PCM to turn the fan on.

You can idle the car for a while and see if the fan kicks on to test if the connection is good, if you don't have an electical tester.

The fan usually kicks on when the needle hits between half way (middle) or 3/4 before H (hot). It can be different for each s series.

When I had 2 s series cars, on one the fan would start when the needle went
just beyond half way 12'o'clock position.
On the other 98 SL the fan would start before 3/4 before H-hot.

As long as it never goes into the H-red zone, and the fan comes on, you are
good to go.
...
Previously Owned 98 SL2, Sold
98 SL, Sold
When your Saturn is well kept YOU are well kept.

Second Car: Buick LaCrosse 2006
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Old 12-28-2008, 09:55 PM   #3
WingsOfSaturn
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1998 SL2
1995 SL2
Default Re: t-stat

PB Blaster and a (good) six point socket. Yes they are 10 mm. If you have to, move the AC out of the way to give you more leverage room.

Just changed my t-stat on my 97 SL2 and they were tight as @#$%. Used a 3/8 drive breaker bar with a 10 mm 6 point socket. Once loose the bolts turned out by hand. Did have to use a short extension for the outside bolt. My temp was always running at 135 degrees but now runs at 190+. Used a NAPA 268 t-stat.

I had tried using a cheap (foriegn) 6 point socket and it split, use a good one.
...
"When you stop to fill up on oil, don't forget to check the gas"
98 SL2 MT 213K+ Daily Driver 38+ mpg
97 SL2 AT 150K Original Owner
95 SL2 MT 220K+
My Saturns have BRASS ones!
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