Hi everybody!, I have just bought an used 96', 2.4 Cavalier

I'm not sure but I think it's working a little hot.

In normal operation, it reaches this point, when the fan starts:



The fan is starting a little bit late? Or that it's a normal operation temperature?

The fan only reduces the temperature very little, then stops. It's never "tries" to get the indicator in the middle. ¿It's Fine?

Thanks!!

(Sorry my bad english, I speak Spanish)

PS: The previous owner used just destilated water on the cavalier, not dex-cool. I should immediately change the water and use dex-cool?

Esteban Cuevas wrote:Hi everybody!, I have just bought an used 96', 2.4 Cavalier

I'm not sure but I think it's working a little hot.

In normal operation, it reaches this point, when the fan starts:



The fan is starting a little bit late? Or that it's a normal operation temperature?

The fan only reduces the temperature very little, then stops. It's never "tries" to get the indicator in the middle. ¿It's Fine?

Thanks!!

(Sorry my bad english, I speak Spanish)

PS: The previous owner used just destilated water on the cavalier, not dex-cool. I should immediately change the water and use dex-cool?

oh dude .. get a radiator flush asap... just water? bad idea. once water heats up. it does nothing but evaporate. 50/50 .

I'll do it as soon as possible!

And about the temp? It's Ok?

That's about when my fan comes on in my car. It's not the same year but I'd say that's normal. I think it should try to get it down to half way, but I'm not sure in your car. Definitely do what AZ24Ncav said.


http://www.youtube.com/watch?v=GEtZlR3zp4c

if it's been just water in the cooling system for this long, i wouldnt put dex cool back in. i would go with the all-makes antifreeze. as for how your fan is operationg, thats completely normal.

AZ24Ncav wrote:once water heats up. it does nothing but evaporate.

at atmospheric pressure. im not saying some boil-off doesnt occur, but it doesnt simply just go away.



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A friend told me that if the car has normal antifreeze for many years there is rust in the system, so if I put dexcool now, it's gonna eliminate the rust, and this rust can damage the engine, radiator, water pump... what do you think? True? After years of normal antifreeze.... should I put dexcool?

PD: Again, sorry for the english, It was kinda hard to say this.

Rich Grayo Jr. wrote:if it's been just water in the cooling system for this long, i wouldnt put dex cool back in. i would go with the all-makes antifreeze. as for how your fan is operationg, thats completely normal.

AZ24Ncav wrote:once water heats up. it does nothing but evaporate.

at atmospheric pressure. im not saying some boil-off doesnt occur, but it doesnt simply just go away.[/quote

yea i didnt mean dissappear out of thin air.. but it wouldn't stay in his system for to long. might just be me, but i dont trust just water. but you are right though.

Esteban Cuevas wrote:A friend told me that if the car has normal antifreeze for many years there is rust in the system, so if I put dexcool now, it's gonna eliminate the rust, and this rust can damage the engine, radiator, water pump... what do you think? True? After years of normal antifreeze.... should I put dexcool?

PD: Again, sorry for the english, It was kinda hard to say this.

no. flush it and go with a different antifreeze, prestone or peak, the yellow stuff.



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