Thread: Radiator vendors???

So i've spent the better part of the last few hours looking for a radiator for my car. The other day I had some cooling issues and thought I resolved it by bleeding the coolant. It worked for a few days and now whenever my cars not driving the temp skyrockets. Anyone have any suggestions where to start looking??? I've got an 04 Competition group. Would prefer aftermarket upgrade but I need some cooling so I don't overheat. Dealer is not an option unless its my only one I'll also be upgrading my thermostat but I already have that.

Also had a question about radiator fluid. I've read on several sites people are draining the dexcool and adding the green coolant. Why??? Is this provide better cooling?

people tend to have problems with dexcool... i would only switch if you were replacing the radiator or if you plan on flushing it out multiple times... what happens when you mix the two coolants is it begins to gel up and clog the radiator. have you checked you readiator cap and looked at the fluid? it may be overheating because the dexcool gunked up already and needs flushed out. it should look like an amber type color... if it looks like mud.. chances are you need it taken care of

No I'm not sure what the problem is. I only assumed it was the radiator because of the rust colored radiator fluid when I did the flush a few weeks back. I thought the core was rusting and then this started happening. So if I do a complete flush again, is it more beneficial to use dexcool or the green coolant???

Your actual radiator is fine and is capable of cooling a 500WHP setup without any issues.


Explain to us the problem a little more in detail. Did you bleed the air out of the system with the bleader screw on the thermostat housing water neck?

I did a fluid flush a week or so, maybe 2 weeks ago because I noticed the color around the cap and neck were mud like and it was running a little hotter than normal. I completely drained it out. Fluished with water then drained that and then vaccumed it out with a wet vac. I refilled but I forgot to bleed it out at the thermo housing. A few days back I noticed it running even hotter than before so I asked around and realized I skipped the bleeding process. I have since bled it but just yesterday i got stuck in traffic and I looked down and noticed my temp was borderline over heating. It actually went into the red for a few seconds but then never got back to that point. I also noticed my center console was very warm. I checked my trans temp and that checked out good. So its only the engine. Water pump maybe? but that cause overheating instantly at highway driving wouldn't it? The problem mainly occurs when I have no airflow into the front of the car ie stopped(lights, traffic etc.) Driving makes the temp drop down substantially.

I also want to note that yesterday while I was stuck in traffic the temp outside was in the 90's

What can I use to make sure I get all of the old fluid out? I was thinking of taking out the radiator and using a pressure washer???

Your fans are coming on, arent they?

Yes, they come on just fine and I will also be replacing the thermostat

Thanks guys, again.