hey guys got my 07 ss/sc back in jan and it was freezing out now its getting nicer out side 60 degrees f.

I was just doing a little driving around town today and i noticed my coolant temp was reading at 232F+

should i be worried? and what do you think a safe zone for the temp is.

thanks guys

 

Umm .. I think I would be a little worried .. i drive mine around in 80-90 degree weather and it never goes past 178 .. so you might wanna do a lil checkin .. see if your thermostat is stuck. but GL

 

You were DRIVING and it was that high? It usually goes to 220-230 when sitting still...

 

Cruising, mine is at 178-182, if I sit for 10 minutes, goes up to about 202-206.

 

well everyday normal traffic- nothing out of the ordinary just redlights and whatnot. but yeah on the highway it was down to 180f but sittin @ red light i def hit 232.

 

id be worried

 

Normal for when your sitting still for a period of time.

 

mine gets up to 212 when i run it really hard in hot weather............and that seems high to me so 232 might be a problem

 

yea mine is usually around 182 but when i sit idle for a while it goes past 200

 

Wow .. are you guys sittin at idle for like 30 minutes or sumthin? Seriously tho, I have ran the **** out of my car all day in 90 degree weather .. never see past 178 .. even sittin at idle for 5 to 10 minutes most it never passes 182

 

the car is programed when it hits 230 to kick on the secondary fan along with the first rad fan from what I can see in HPT along with the termostat to flow completely in the open position. How I fixed this was to have HPT kick on the second fan regardless of temp in a normal idle situation (i.e traffic or waiting at the track). When the car detects netural or idle for longer then a minute it turns it on for me now.

It is completely normal for an aluminum motor to get this hot, I would really only worry if the temperature reaches beyond 240 +. If we were talking back in the 50's - 70's the cars should NEVER get this hot and is an easy indication that something has gone wrong or the car was just driven really freaking hard.

 

i was at the track this past thursday and did 5 runs...my low was 178 degrees on my wa back from a run but while i was sittin in the staging lane it went all the way to 223 then slowly came back down just in time for my next run. AND i had ice on the SC.

 

Here's the info from the GM Service Manual, I'd say no worries.
But always keep an eye on your coolant temp.


Cooling Fan Control 2.0L (LSJ)
The engine cooling fan system consists of 2 electrical cooling fans and 3 fan relays. The relays are arranged in a series/parallel configuration that allows the powertrain control module (PCM) to operate both fans together at low or high speeds. The cooling fans and fan relays receive battery positive voltage from the underhood junction block. The ground path is provided at G105.

During low speed operation, the PCM supplies the ground path for the low speed fan relay, which is relay 1, through the low speed cooling fan relay control circuit. This energizes the cooling fan 1 relay coil, closes the relay contacts, and supplies battery positive voltage from the cool fan 1 fuse through the cooling fan motor supply voltage circuit to the left cooling fan. The ground path for the left cooling fan is through the cooling fan s/p relay and the right cooling fan. The result is a series circuit with both fans running at low speed.

During high speed operation the PCM supplies the ground path for the cooling fan 1 relay through the low speed cooling fan relay control circuit. After a 3 second delay, the PCM supplies a ground path for the cooling fan 2 relay, which is the high speed relay, and the cooling fan s/p relay through the high speed cooling fan relay control circuit. This energizes the cooling fan s/p relay coil, closes the relay contacts, and provides a ground path for the left cooling fan. At the same time the cooling fan 2 relay coil is energized closing the relay contacts and provides battery positive voltage from the cool fan 2 fuse on the cooling fan motor supply voltage circuit to the right cooling fan. During high speed fan operation, both engine cooling fans have their own ground path. The result is a parallel circuit with both fans running at high speed.

The PCM commands Low Speed Fans ON under the following conditions:

• Engine coolant temperature (ECT) exceeds approximately 106°C (223°F).

• A/C refrigerant pressure exceeds 1 310 kPa (190 psi).

• After the vehicle is shut off, the ECT at key-off is greater than 140°C (284°F) and system voltage is more than 12 volts. The fans will stay on for approximately 3 minutes.

The PCM commands High Speed Fans ON under the following conditions:

• ECT reaches 110°C (230°F).

• A/C refrigerant pressure exceeds 1 655 kPa (240 psi).

• When certain DTCs set

When the request for fan activation is withdrawn, the fan may not turn OFF until the ignition switch is moved to the OFF position or the vehicle speed exceeds approximately 10 mph. This is to prevent a fan from cycling ON and OFF excessively at idle.

 

For peace of mind, the coolant will protect the car to at least 260+ degrees. Beyond that, depending on the coolant / water mixture, as well as how old it is, you run the risk of it turning into steam and losing the ability to remove heat from the engine.

 

we use dexcool coolant i dont believe there is water correct me if im wrong.

 

Dexcool blows anyways. You have to babysit it and change it often if you like your motor working properly.

Read up.

http://www.consumeraffairs.com/autom...m_dexcool.html

Also, flush your radiator often, the GM book says you don't have to change your Dex Cool fluid until like 100-150k miles (I forget which one came first). They are full of lies.

 

your fine dude. mine does the same thing. just sitting around or not doing anything itll go up to like 220+ but just around there the fan will kick in and bring it back to 180-90s. when its hotter outside your fans will go on earlier versuses it being cold out. when driving u should be around 185

 

**** i was a bit worried when my car hit 210. I had only been driving for about 10 minutes, no idling at all. Im usually around 185-192. I put some more coolant and it hasn't hit over 192 now. Now i feel stupid lol

 

Did you all read that article about Dex Cool antifreeze?

 

thats it mombo jombo? lol yeah

 

(I know this thread is old) Im curious. I read the article about the dex cool stuff. What would be a good replacement?

 

it's fine.

07's run hotter than any other year for some reason.

 

im with this guy, while either at idle or right after i hit 130 i never seen my temp raise highter then 182F.

however, the past couple of days i have seen the temp go up to 185 and the low coolant sign has been coming on, i lost my manual does anybody know how to add coolant to this car?

thanks

 

so today while cruising my coolant started to steam for some reason....its like it wasnt flowing at all....it was starting to surge through the lil bubble on the driver side in the engine bay if u know what im talkin about....u know where u add the coolant if u need any.....well that thing i forget what its called. i went through the drive through i was only idling for mayb 3 to 5 mins and i happend to seen that my coolant temp was at 230+ its like my fan did not kick on at all....then i parked and thats when all the action happend....it was just steaming for some odd reason.....so let it cool down and i added some more coolant....luckily there was an autozone in front of me. but now i notice that when ever i idle it just climbs real fast and it really never goes down to 180 unless im doing highway speeds which is really the air passing through it thats keepin it cool i believe. i checked my fan fuses both of them and they are good.. is there a sensor or something that controls them coming on and where is it?

 

after looking real carefully i have found my problem....i had noticed some coolant before on my engine but now i realize that it just keeps dripping constantly....my fan does come on but since i ran out of coolant i guess i got some air in the hoses which pretty much fucked me up...but its all good....ill probably see if the dealer could hook me up with a new hose or something.....it mayb like a drop every minute but still its enough to get anyones attention as it could get worse