excel8tortogo

my ZO6 runs hot any problems I should know about, suggestions welcome

racebum

radiators need to be cleaned every 20-30k miles, they suck up a LOT of grime

you can try to do it on car and or pull the radiator and pick and and use compressed air to blow out all the crap stuck in the fins. you also could just replace the radiator if it's a 100k mile car. a new ac delco radiator is $200 shipped

very common issue. the other is a failing thermostat and the water pump if OE is on borrowed time if you have an 02 as well. same with the hoses. at 15yrs the cooling system on basically any car needs to be refreshed

BurntNoodle

http://www.toquez06.com/radiator.html

I also have a 2002 Z06, and followed this guide when I blew out the radiator and AC Condenser, it worked extremely well. At the same time I flushed the old coolant out because I think it was original. Replaced with fresh dexcool and water.

Car runs 20 degrees cooler than it did.

HTH

John

racebum

that's also a very good point. the old dex cool needs to be flushed and replaced at this age. should be done at 10yrs or 100k max