'07 g35s sedan Temp Gauge all the way down
Hello! Just purchased a 2007 G35S Sedan. :JAMIN:
I noticed last night that the temp gauge was all the way down. (C) I assume it's the thermometer that is done(?) Air in the system maybe? (The previous owner said he had just had the coolant changed) * Happens when i accelerate and highway Thanks! |
Originally Posted by mikeG35S
(Post 6973551)
Hello! Just purchased a 2007 G35S Sedan. :JAMIN: I noticed last night that the temp gauge was all the way down. I assume it' the termometer that is done(?) Air in the system maybe? (The previous owner said he had just had a coolant change) I'll try again now and see what happens. Thanks! Now, in the interest of being overly cautious (and because you can't always assume that everyone agrees on which way is "down"), if the gauge is all the way toward H (hot), then you should stop driving it immediately until you can get it resolved, as it could do irreparable damage to the engine. |
Thanks for the welcome!
It hits C when i accelerate or highway. The previous owner had a recent coolant change and complained that the heating (in the car) was was so-so. I'll burp the car and see if this helps. Thanks! |
Originally Posted by mikeG35S
(Post 6973591)
Thanks for the welcome!
It hits C when i accelerate or highway. The previous owner had a recent coolant change and complained that the heating (in the car) was was so-so. I'll burp the car and see if this helps. Thanks! FYI: The coolant temp sensor is on the driver's side of the rear mixing manifold, beneath the engine cover, in back of the heads, and near the firewall. There's two bleeder valves on the driver's side of the car. One is in the heater hose, just adjacent to the shock tower, and the other is on the upper side of the radiator, just behind the air filter housing. |
Is it possible the thermostat is stuck open? I hate to mention it but I really hope the previous owner didn't pull the tstat out to hide a HG issue.
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I'll be burping the car tomorrow and hopefully it's air.
What's HG? |
Originally Posted by mikeG35S
(Post 6973836)
...
What's HG? |
Head Gasket...i hope not.
I just went out to burp the G but noticed that the coolant in the Reservoir tank is FROZEN!!!!!!! The coolant is green but frozen solid... I assume i need a full coolant flush(?) |
yikes, I would.
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Originally Posted by mikeG35S
(Post 6974228)
Head Gasket...i hope not. I just went out to burp the G but noticed that the coolant in the Reservoir tank is FROZEN!!!!!!! The coolant is green but frozen solid... I assume i need a full coolant flush(?) |
Ice will certainly make things cold.
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Originally Posted by G force
(Post 6973764)
Is it possible the thermostat is stuck open? I hate to mention it but I really hope the previous owner didn't pull the tstat out to hide a HG issue.
Then, as soon as I started moving and air started flowing over the car the temp gauge would go down (cold) and stay there until I came to an idle. Pulled the thermostat and it was mechanical, just had a tempered spring that expanded/compressed depending on temperature and 1/2 of the face of the thermostat was broken so coolant was flowing freely. Hence, stopped, car is hot, thermostat is all the way open. Moving and air flowing, it would cool down and close to restrict coolant but couldn't since half of it was broken off (where the other part went ill never know) I am hoping that is your issue since it was a simple fix on the Honda and ideally on the G as well. Just my thoughts. _Michael |
Got a new thermostat , bled the coolant.
I noticed that Only the big coolant tube was connected and the other smaller port (for the oil coolant) was closed off. (no tube attached). Should i now be concerned? ... Also where can i grab a diagram of where exactly the temp sensor is. Thanks!! |
Here's a copy of the FSM: http://www.nicoclub.com/FSM/G35/Sedan/2007_G35_Sedan/
Look in the CO (cooling) section and it will cover everything. (see page CO-24 for a pic showing the coolant temp sensor. It's item #8 in the diagram.) Given that someone has worked on the car, I'd make sure that sensor is still plugged in properly. It sounds like someone has done some modding to your car. Perhaps they didn't want the oil cooler to function because you're in such cold territory ( ?? :dunno: ). Anyway, if that were indeed the reason, it would probably be foolish to have done so, because the oil "cooler" really serves to warm the oil initially, since water temps rise much faster than oil temps. If you're actually looking to bring your oil up to operating temps faster, then you definitely want your oil cooler connected to your engine coolant circuit. Once the engine oil and coolant have come up to full operating temp, only then does the oil cooler actually draw heat out of the oil, as it is thermostatically maintained to a lower temp range than the oil is. |
Thanks for the feedback! The thermometer was non functionel. Swapped it out and it now all is 100% :)
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