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Thermostat question
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=60883		 Page 1 of 1
Author:  scubadvr1999 [ Wed May 25, 2011 4:38 pm ]
Post subject:  Thermostat question
So I dont know when or if the thermostat has ever been replaced (bought the libby at 70K) and it has always sat right at the 25% line maybe a little bit over for the past 6 mos or so. Then a few days ago I had to pull out in front of a car at a light and put the petal to the floor to get out of the way and stayed on it for just a few seconds. I looked back to my enjoyment to see the car behind me following me and coming out of a nice cloud of smoke :P . Then a few mins later I noticed that my gause is not sitting inbetween the 25% and 50% marks. Has anyone else had this happan to them or noticed it? I wa going to change it soon but now I am tempted to wait. As for the exhaust, all my hoses and intake are good, im not worried about the little bit thats normal.
Author:  papaindigo [ Wed May 25, 2011 5:32 pm ]
Post subject:  Re: Thermostat question
If your temp gauge on a warmed up engine is not sitting dead vertical or no more than 1 tic left of vertical then your tstat has failed. Kapalczynski has done a lot of research on this as part of his tstat project and found that the tstat spring weakens over time causing the tstat to open too early and stay open hence the engine never really warms up in cooler weather (below 70 degrees F or so and without AC) unless it's pushed hard. Eventually it gets to the point where the temp gauge won't go any higher than 1 tic right of the 1/4 mark.

Smoke under hard throttle is not abnormal but it's not desirable. Mine did that until I got the GDE EcoTune.
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