Engine coolant temp
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01-19-2018, 05:46 PM
#52
I've just always got what the local CarQuest or whatever flavor has and made sure it fit right with the right cracking temperature and never had a problem. Definitely didn't pay $40 for one. The ACDELCO 180F T-stat is on RockAuto for $15. 2006 CHEVROLET COBALT 2.0L L4 Supercharged Thermostat | RockAuto
01-19-2018, 06:24 PM
#54
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Thanks JB I'm on rock auto right now picking up the ACDelco one. Question do I need one of the $3.39 ACDelco seals under thermostat housing water outlet seal ? Or I'm I good just with the TSAT itself ?
01-20-2018, 07:33 AM
#57
I got one without the bleeder jiggle valve because I didn't know about it until I was comparing the T-stats before I installed the new one. Now I can't remember if this was on my truck or my car but I drilled a tiny hole in the new T-stat in the same location. All it is is a hole with a little ball that rolls around and I think it acts like a check valve. I drilled a small enough hole I figured it couldn't flow enough fluid to prevent it from warming up anyway and haven't noticed any issues. I would say though if you aren't comfortable with the hole you may want to go with bleeder valve though I can't speak for the experience without it. I just didn't want to fight any trapped air. It may work fine, idk.
01-23-2018, 02:12 PM
#60
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I have an 07 cobalt that was running between 190-210F and the other day it shot up to 240 when I got on the freeway, so I changed the thermostat and its still doing that.... what else could it be??
01-23-2018, 02:15 PM
#61
Originally Posted by Anita Weier
I have an 07 cobalt that was running between 190-210F and the other day it shot up to 240 when I got on the freeway, so I changed the thermostat and its still doing that.... what else could it be??
01-23-2018, 02:18 PM
#62
T-Stats usually fail open, not closed. It's possible that there is an air bubble in the system, but also unlikely (esp if it's not supercharged). It is likely you have a restriction somewhere, and if so, most likely radiator. Your radiator may be clogged either inside or outside. I'd check that out.
01-23-2018, 02:24 PM
#63
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Sure, why not.
T-Stats usually fail open, not closed. It's possible that there is an air bubble in the system, but also unlikely (esp if it's not supercharged). It is likely you have a restriction somewhere, and if so, most likely radiator. Your radiator may be clogged either inside or outside. I'd check that out.
T-Stats usually fail open, not closed. It's possible that there is an air bubble in the system, but also unlikely (esp if it's not supercharged). It is likely you have a restriction somewhere, and if so, most likely radiator. Your radiator may be clogged either inside or outside. I'd check that out.
I dont think its supercharge not sure though, I dont know anything about cars... its a coupe, temp sensor was changed a few months ago and ran fine til our temperature went into single digits was running around 217 with outside temp 8. It was staying between 210-217 then one day I got on the freeway and it shot up to 240. Will check radiator, thanks for replying.
01-23-2018, 02:29 PM
#65
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I dont know, bought it may last year. Took it to a Chevy dealer and had everything checked out the day I bought it including transmission fluid, so if it coolant was bad wouldnt they recommend replacing?
01-23-2018, 02:43 PM
#69
Dex-Cool lasts a really long time. I think the owner's manual recommends changing after 100k miles. It pretty much only "goes bad" if it is exposed to air or is mixed with standard green coolant. What color is your coolant (green vs. orange vs. brown)?
01-23-2018, 02:48 PM
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01-23-2018, 03:08 PM
#71
That's good. My VW had a clogged radiator. The fins were filled with crud and I think the inside was likely cruddy as well. It ran warm till I replaced it. The water pump also leaked, which likely introduced air into the coolant, which is bad news for OAT/HOAT coolant like Dexcool.
01-23-2018, 05:36 PM
#72
Originally Posted by exninja
Dex-Cool lasts a really long time. I think the owner's manual recommends changing after 100k miles. It pretty much only "goes bad" if it is exposed to air or is mixed with standard green coolant. What color is your coolant (green vs. orange vs. brown)?
01-23-2018, 06:32 PM
#75
What do you know, your right lol. I have the prestone all makes all models formula and it looks like they have prestone dexcool approved too. I can't see there being much of a difference but I'll read up on it.