Switching Thermostats....
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194 Posts
I could be way off base, but I seem to remember that GM started running 194-196 degree thermostats back in the early 70's, when I still had the desire to rebuild engines and trannys. Of course muscle cars were tapering off, and pollution was becoming a concern....just thinking out loud....[/SIZE]
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2,233 Posts
Hey Boosted,
I agree that we should lower the thermostat, but I would recommend the 180 instead of the 160. The computer like a little heat and once I get my diagnostic tool so I can change the fans to come on earlier, I think it will really make a difference....... READ THIS!
Let us know how yours works out.
I agree that we should lower the thermostat, but I would recommend the 180 instead of the 160. The computer like a little heat and once I get my diagnostic tool so I can change the fans to come on earlier, I think it will really make a difference....... READ THIS!
Let us know how yours works out.
Switching Thermostats
Boy, this is an old thread that never seems to go away. BEWARE in changing thermostats unless you have a true overheating problem (bad thermostat). The aluminum block engines do run hot (as GM readily admits). Changing the thermostat can change many vital settings (fan ignition, etc.) and if engine is not running at "optimum engine temperature", you probably have a cooler engine, but less performance and lower gas mileage. Just my two cents since I've been thru this on C5 Vettes and Dodge Vipers. Have fun...and drive safe. CARNUT
Boy, this is an old thread that never seems to go away. BEWARE in changing thermostats unless you have a true overheating problem (bad thermostat). The aluminum block engines do run hot (as GM readily admits). Changing the thermostat can change many vital settings (fan ignition, etc.) and if engine is not running at "optimum engine temperature", you probably have a cooler engine, but less performance and lower gas mileage. Just my two cents since I've been thru this on C5 Vettes and Dodge Vipers. Have fun...and drive safe. CARNUT
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290 Posts
I sat in stop and go for about two hours last week and watched it go up and down. I use to turn on the heater to help the problem but I decided to just watch what it did. What I saw was at 220 the fan came on and drove it down to 195 and shut down. I watched it over and over and it never over heated. Us old guys are not use to these kind of temps on and engine so it is hard for us to go along with. Every thing I have read says it is normal. I have a 100K bumper to bumper warranty so I will give it a chance. I have nothing to loose. :cool :cool
How Will You Know There's a Problem
Guys,
It is all well and good that the engine is supposed to run hotter (210-220) degrees Fahrenheit, but is that really the operating temperature? If the gauge reads 240 degrees Fahrenheit is that okay?
People have reported that their temperature gauage has pegged to the right and they took it to get serviced. Great! But how do you know when it is malfunctioning otherwise? Why does someone have to wait until it pegs to the right before they realize it is running hotter or too hot? Shouldn't there be a way of telling before it gets to this point?
Also I am fortunate enough to have the gauge package but what happens to those who do not have the gauge package? Are they to just drive around until their temperature light activates?
Anyone have anything to add?
E :confused
Guys,
It is all well and good that the engine is supposed to run hotter (210-220) degrees Fahrenheit, but is that really the operating temperature? If the gauge reads 240 degrees Fahrenheit is that okay?
People have reported that their temperature gauage has pegged to the right and they took it to get serviced. Great! But how do you know when it is malfunctioning otherwise? Why does someone have to wait until it pegs to the right before they realize it is running hotter or too hot? Shouldn't there be a way of telling before it gets to this point?
Also I am fortunate enough to have the gauge package but what happens to those who do not have the gauge package? Are they to just drive around until their temperature light activates?
Anyone have anything to add?
E :confused
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1,775 Posts
well I am getting 348 miles on a tank right now and that is refueling at an 1/8th tank. I have only used 1 tank of fuel since the swap but I did put another 16 miles on this tank..Could be driving speed or what not but I haven't lost anything with it yet... :thumbs
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