My 2000 Chevy venture is overheating. I replaced the radiator, thermostat and radiator cap. What else could it be?

SOURCE: 1999 Chevy Venture continuosly overheating

sounds like u might have a blown head gasket is your oil milky colored

SOURCE: 1998 aurora overheating

I had the same problem and tried several things that didn't help. A friend introduced me to a Northstar mech. that explained the real problem. Internal engine relief was faling which created overheating between cylinder sleeves and engine block creating blow back pressure in cooling system. There is a fix for this. The mechanic helped me with the problem and car is running once more... Anyone thinking they have a head gasket, intake gasket, or thermostate problem should look at this fix.

SOURCE: my car keeps overheating while it is idling.

If it's only happening while sitting at a stop light and idling, the problem is probably in the cooling fans. Turn your A/C on high and pop the hood. Check your cooling fans to see if they're running. If they aren't running, it's the fan relay. In my 99 Taurus, the high speed fan relay is located in a slim black box next to the battery, it's the large square relay right up front. Use a known working relay of the same size and pop it into this relay. If the fans turn on, there's your problem. Replace the relay. Try the same with the A/C on low, but this relay is in the power distribution box (number 31). The 2002 may have a CCRM (Constant Control Relay Module). The CCRM is an expensive part (over $100.00). You'll be able to tell because the CCRM is a very large box that is mounted next to the battery and contains relays that are not replacable. It'll have a part number followed by a large letter/number. You'll need this part number and large letter/number to order the new.

SOURCE: I have a Chevy Venture 2001 that has serious

You should probably replace the temperature sensor first, make sure the car is indeed overheating.

If after replacing the temp sensor, and the problem does exist, then buy a flush kit, and back flush the system, it may be clogged.

SOURCE: saturn L200 keeps overheating , I have replace

Either the coolant is escaping, or not circulating. If there is coolant in a puddle under where the car is usually parked, then I would look above that point, track the leak back to its origin and fix the leak. If the exhaust smells of coolant, then you need a real shop repair for a gasket or worse.
If the coolant is not circulating then I would check for a bad water pump or a blocked radiator. Lots of the L Saturns had leaking heater cores, a slippery wet passenger floor and stink was the indicator.