High engine temp warning after changing thermostat
Instructor
Joined: Dec 2006
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From: broussard La
Congrats On Solving Problem
ERIC I wish some of that 65' temp would come down here sooner rather than later. All we have is Hurrican season to look forward to now. Did you lose any of the computer settings when you disconnected the battery? I have to disconnect the power or batt. onmycomputers when they act up but thats another forum. Glad to hear that every thing is fine. Wish I could get my w/s wipers to malfunctiopn when I bring it to dealer. Thats also another thread.
Melting Slicks
Joined: Sep 2005
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From: merritt island fl
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Years ago I read something that Smokey Yurchan[sic] did to his cars its worked for me for many different cars. Here goes by the way I have read this from some other guys here also so I'm not the only one. I drill acouple of 1/8 or slighly large hole . I also insist on fail open thermostats. The good ones always have 2 springs. The holes prevent AIR POCKETS. they also allow enough water to help prevent serious overheating. I just changed my 07 C6 to 160' it drastically lowered the temps from 203-208 to 183-189. this is my experience ,no reprograming in my case. no water wetter either. I do use the AC all the time and keep the dust out. I hope it works out for you try the holes, there is already one there with a swivel thing that must go IMOP
Are you sure you have a "fail open" thermostat?
Safety Car
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From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Safety Car
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From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Team Owner
Joined: Aug 2003
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it is starting to sound like that, but I wonder why it started at the same time he changed thermostats.Also if its the undertemp code, why is it saying that its hot??
In light of whats going on, I would send for a new 160* thermostat or put the stock one back in and see what happens.
Last edited by '06 Quicksilver Z06; Jul 3, 2007 at 04:27 PM.
Drifting
Joined: Jul 2005
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From: az
it is strating to sound like that, but I wonder why it started at the same time he changed thermostats.Also if its the undertemp code, why is it saying that its hot??
In light of whats going on, I would send for a new 160* thermostat or put the stock one back in and see what happens.
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Le Mans Master
Joined: Feb 2006
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From: Chandler Arizona
I found a method off of this forum. It sounds weird, but you take the small rubber hose off the line from the driver's side head. You then take the cap off the coolant reservoir off, put your mouth over the opening and blow until coolant comes out of the tube. Please do not swallow any coolant! It worked great for me.
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Instructor
Joined: Aug 2006
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From: duluth minnesota
I found a method off of this forum. It sounds weird, but you take the small rubber hose off the line from the driver's side head. You then take the cap off the coolant reservoir off, put your mouth over the opening and blow until coolant comes out of the tube. Please do not swallow any coolant! It worked great for me.
Drifting
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From: az
glennhl won't lead you wrong. 
Le Mans Master
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From: Chandler Arizona
Safety Car
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From: Dalllas/Ft Worth Area TX
Thermostat Checks When Installing
I don't think anyone mentioned about turning the heater all the way to hot to get air out of heater core. Also test the termostat on the stove to make sure it opens all the way. Also thermostats use to have a small bleed hole or notch to let trapped air get out when filling. Yes, don't put it in backwards, the bulb goes toward the engine or heat source. Watch your gauges while filling and run about 2k rpm. Aluminium block engines can overheat very, very quickly, it takes just minutes with little or low water circulation.
Melting Slicks
Joined: Sep 2005
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From: merritt island fl
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I don't think anyone mentioned about turning the heater all the way to hot to get air out of heater core. Also test the termostat on the stove to make sure it opens all the way. Also thermostats use to have a small bleed hole or notch to let trapped air get out when filling. Yes, don't put it in backwards, the bulb goes toward the engine or heat source. Watch your gauges while filling and run about 2k rpm. Aluminium block engines can overheat very, very quickly, it takes just minutes with little or low water circulation.
The bleed hole doesn't help either- the stat is not on the top of the engine.
You can't put it in backwards.
Drifting
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From: az
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Instructor
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From: duluth minnesota
i have put on 100 miles on it and all is good. so I guess i must of had air pockets, seems they went away from running car at 2,000 rpm with res. cap off for a couple minutes.