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  1. Gen1 1.4L Turbo
    So "the thermostat doesnt open just by coolant getting hot. Theres also an ECM controlled heater that'll make the t stat open earlier if greater cooling is needed under certain conditions. Normally, it starts to open at 221*F and is fully open at 248*F with no assist. When the electric...
  2. Gen1 Service Issues
    Hey Everyone, So I have just started to have an odd issue with my 2011 Cruze LT with about 63,000 miles on it. If i turn my heat on full blast the thermostat next to the fuel gauge actually goes down. So the temp will be at the normal level, turn fan onto level 4, and the thermostat goes...
  3. Gen1 Powertrain
    The cruze just started doing this yesterday. Engine temp wont get up to normal operating temperature at all. After its been running for about an hour it only gets to about here : Hard to see but its about a stick under a quarter of the way. No check engine light. Is it the thermostat? 1.8L...
  4. General Discussion
    47,000 miles in, my check engine light rears its ugly head. The next day I notice that the radiator fan is spinning like a jet engine even with my A/C off (normally it is about half the speed and only if driver temp controls are engaged). Took it into service, they said they had to do some...
  5. Gen1 Engine/Transmission Tutorials
    The OEM oil pan heater on theCruze has a built in thermostat that keeps it from working at temps below 0F (-18C). This was done to keep the temperatures from interfering with the Engine Coolant Temperature sensor diagnostic that runs when the vehicle is started. There is some simple logic that...
  6. Gen1 Service Issues
    my wifes 2011 cruze has had the thermostat housing replaced 3 times already. now i am in wisconsin on business and it is leaking again. will be back to ky on thursday and have an appointment at the dealership to get it fixed AGAIN. is there anything that can be done so this thing dont start...
  7. Gen1 Service Issues
    I have a base model 2012 cruze and I am starting to think my thermostat is not operating properly. I live in northern minnesota and we are in a bit of a cold snap, currently -18F in my town. But my car will not get up to temp when idling or when I am driving it for 20 minutes. Most of the time...
  8. Gen1 Powertrain
    somewhere between being very unlucky or every cruze thermostat not working properly, i had yet another thermostat replaced on a 2012 cruze 1.4. both cars had the same exact issue of not getting to op temp after 25 min of driving when temps outside were below 40 degrees. the thing that made me...
  9. Gen1 1.4L Turbo
    Since the 1.4 runs a little hot, has anyone tried a lower temp thermostat? Is there one even available. I did do a search and could not find anything.
  10. Gen1 Service Issues
    GM just released a tsb for thermostat housing gasket leaks. Subject: Coolant Leak at Thermostat Housing to Cylinder Head Models: 2011-2012 Chevrolet Cruze 2012 Chevrolet Sonic Equipped with Engine RPO LUW...
  11. General Discussion
    Bought my cruze about a year ago this month. Last few weeks the check engine light has been coming on, stay on for a few days and then go off for a few days. Thought it was related to the gas cap as it seem to happen when I filled up. Went in for my oil change today and they pulled off the...
  12. Gen1 Service Issues
    So far we've had some trouble free and dare I say wonderful experience with our 6MT Eco. Wife comes home (like the car enthusiast in training that she is) and says "Come outside quick I want you to hear a noise!!!!" I run outside and I hear what sounds like an electrical relay or component...
  13. Gen1 Powertrain
    I don't understand the reasoning behind the computer controlled thermostat. Sometimes I've heard people say it allows the motor to warm up faster but I don't see any difference between my Cruze and my GMC pickup with an old-fashioned mechanical thermostat. The Cruze doesn't warm up any faster...
  14. Gen1 Powertrain
    What is the thermostat temperature rating on the 2011 2LT Cruze. After driving the car for around fifteen to twenty minutes the temp guage reads normal but when I open the hood and feel the radiator hoses the hose on the left feels cool. The top of the hose where the thermostat is feels hot but...
  15. Gen1 Powertrain
    In my other thread about the 1.8 valve adjusters one of the replies had a link to the GM Powertrain web site. I read through the specs on the 1.8 Cruze motor and it said the 1.8 has a computer controlled thermostat. Somehow I thought only the 1.4 turbo used that and the 1.8 has a conventional...
  16. Gen1 Service Issues
    Just thought i would post this one out of curiosity and to help anyone with the same issue out. Back in May i had driven my new Cruze (purchased in February) to work for the first time. 15 mins into my drive i noticed the temperature had not risen on the dash. No sooner did i see this then the...
  17. Gen1 Service Issues
    Subject:10399 - Service Update for Inventory and Customer Vehicles - Thermostat Sticks in Open Position and Shift Quality- Expires with Base Warranty Models:2011 Chevrolet Cruze Equipped with a 1.4L Turbo Engine (LUJ) This service update includes vehicles in dealer inventory and...
  18. Gen1 Service Issues
    I have not paid my first month yet and my Cruze has been in the shop since Tuesday :mad:. I called the Service department today and they told me that the part is on back order and it will be a while until it comes in. I have 600 miles on my car, haven't even revved the engine up in it yet and...
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