car gets cold when driving?
#1
car gets cold when driving?UPDATE!/FIXED
Ok so today I let my car get to temperature before I head out and as I'm driving on the high way the temperature starts to do towards C.now mind you I do live in nyc and have the heat on due to it being 37 degrees here. I checked both lower and upper radiator houses and both felt some what hot. It does idle at perfect temperature until I start to put a load on it. Could this be my temp sensor and is there a way to tell if it's bad by checking voltage some how before I replace it our is it my thermostat just giving out on me slowly? Thanks in advance and wanted too get some insight so I can fix the problem tomorrow as we are expecting snow and do all my work in front of house unfortunately.
Last edited by NOLAGG; 01-11-2015 at 09:32 AM.
#4
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My '8 did this a month or so ago. Heater performance suffered. The car warmed up to what seemed to be within normal temperature range but when in motion, the gauge would indicate a lower temperature. I removed the thermostat and the plunger looked normal and it sat fully, but I replaced it (with another OEM) anyway. Coolant temperature gauge has been steady ever since and the heater performance is back.
#6
My '8 did this a month or so ago. Heater performance suffered. The car warmed up to what seemed to be within normal temperature range but when in motion, the gauge would indicate a lower temperature. I removed the thermostat and the plunger looked normal and it sat fully, but I replaced it (with another OEM) anyway. Coolant temperature gauge has been steady ever since and the heater performance is back.
#10
Or not...lol well to update I realized it only happens when driving on the high way..But get this,I drive on the high way both heat and ac off and it doesn't drop.soon as the blower goes on it drops whether heat or ac on.I picked up the thermostat but since it's freezing and raining here in nyc I'm going to wait and just pick up and change the coolant temp sensor as well for piece of mind.first thing though I will add coolant to my over flow tank since when I checked it is bone dry.I'll let every one know how things turn up.
#12
So basically start the car after topping off the over flow tank to max line with the rad cap off?
#13
Registered User
my car used to do that, I have videos of the temp gauge moving from operating temp down to C while revving, nobody knew why. I found that it was air in the system due to being slightly low on coolant, found my radiator leaking at the seams.
#15
UPDATE!!!!!
I changed my thermostat and coolant temp sensor, added coolant to reservoir to max line and all is well. didn't have to bleed it out nothing and the car is holding prefect temperature and heat is blasting nice and hot.
I changed my thermostat and coolant temp sensor, added coolant to reservoir to max line and all is well. didn't have to bleed it out nothing and the car is holding prefect temperature and heat is blasting nice and hot.
Last edited by NOLAGG; 01-11-2015 at 09:31 AM.
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