Recently my car has been acting a bit funny. I can be driving in the street and all of sudden my temp gauge goes to the 2nd highest line and eventually goes back down to normal. On the freeway, it will go up and then go back down right away. Should i begin to worry more

What is weird is that this begins after a while of driving and it has become an annoyance having my gauge go up. Any idea what it could be?

 

Air pocket in the coolant - not good. Follow the procedure in the FSM for getting rid of it. With the car warm, when you turn the heat on, is the air that comes out hot or cold?

 

When I turn on my heater, it doesn't heat up until I drive fast what fsm sectioned would you speak of . And thanks for the help.

 

Hey, i'm actually have the same problem with my coupe. I'll be driving and the temp would shoot up to the same spot and stay there. When i do turn on the heater to try and get the temp down, it'll only blow out cold air. Sometimes it does blow out warm air and that's when the temp needle drops. Any suggestions?

Same question with MetalCow. Which section?
And sorry if i'm barging in on your thread

 

There is a little valve on the heating system - passenger side close to the firewall. You can bleed off air from there. (Make sure the car is cold enough to remove the radiator cap first.)

 

my car is doing the same thing.i replace the thermostat and did a coolant flush and a drain refill,still doing it.is there in easy why to bleed the coolant system,or is there something major wrong with the car.

 

bump need help

 

ttt still have not figure out the problem....

 

This is the highest point in the cooling system. Bleed from here and everything will be peachy.

 

i have done that...
its like one air bubble that i can't get out,or something really major.

 

bump still doing it....

 

what i did was flush the coolant and afterwards i would leave the coolant cap off then turn on the ngine until the coolant flows out. than cap it about a second afterwards. that worked for me. good luck with yours.

 

Ok I had this exact problem. First off I replaced my Thermostat with the nismo, but I don't think that alone did the trick. What I did was took the cap off both the radiator and the small cap on the hose in the back left of the engine bay. I let the car heat up with the caps off. It allowed the air bubbles to flow out of the radiator cap and the small hose cap. It bubbled for some time and I had to add a good amount of coolant. This process took about an hour but after a good amount of time and coolant the small hose had a steady flow of coolant flowing out with no bubbles at all. I will do a DIY if you guys still dont figure it out.

 

thanks for the info.
i did the same process to my car still no result.i even left up front part of the car and had a a coolant funnel on the radiator still no result. do you thank it could be something major, like radiator or heater-core clogged.
thanks,
corey

 

Did it bubble at all?