cobaltdrag0615

okay so when i drive and my heater is on im average 180-190 which is good. when im at idle and my heater is on only the past 2 days has it started but itll go as high as 229 from what ive seen.. what in the efff? a chevy service advisor told me to check my relays. no coolant leaks. and coolant is still a nice color. helpppp!


Posted from Cobaltss.net App for Android

victory_red_SS

iTrader: (2)

Check your thermostat. It may be sticking. Remove it all together and if the problem stops, go buy a new on and reinstall.

Sox-Fan

iTrader: (7)

so when you drive and air is flowing through the radiator it's 190 and when you sit still and no air is going through the radiator it's 229.

flip on the defroster, does it go down?

turbosmart4

iTrader: (18)

Your thermostat might be bas as stated already... Or ur fans are not coming on. Best way to check is by turning ac on with defroster, on high, like stated also. If u see ur fans coming on and temps not dropping, it might be ur tstat

cobaltdrag0615

fan does come on. and only with the heat. AC at idle is fine


Posted from Cobaltss.net App for Android

Sox-Fan

iTrader: (7)

So you're saying the fans only come on at idle with the heat or A/C on?

cobaltdrag0615

the fan came on for AC at idle. didn't think to try heat. may be a bad relay


Posted from Cobaltss.net App for Android

Sox-Fan

iTrader: (7)

or temperature sending unit whatever the might be and where ever that might be.

turbosmart4

iTrader: (18)

If fans came on and kept temp down then u should try replacing the tstat...

Sox-Fan

iTrader: (7)

Um, if the fans did not come on automatically with the temperature, and did come on when he turned on the AC then the thermostat is doing it's job. It's staying open allowing the fans to cool the coolant as it passes through the radiator. The question is why are the fans no coming on by themselves.

LS6Rally

iTrader: (14)

^ this

sounds like a temp sensor to me.

mmcgee123

iTrader: (1)

coolant level is low or thermostat is sticking makesure the coolant level is okay if it still does it buy a
tstat cheap and very easy install

LS6Rally

iTrader: (14)

^ then why arent the fans on at 229?