2000 Chevy Venture is overheating

Answer 1

rob ....check the water temp sending switch on the front top of engine ....has 2 small wire connector and if you pull it off the fans should kick in....and if that works then I would assume its a fault in that sensor switch which is in a normally closed position n/c (I think) because when you pull off the wire harness you are opening the circuit which triggers the fan relay in the fuse box under ther hood?? WOW.......does that make any sense?? Oh ...and while your in the fuse and relay box you can check the fan relays by switching them with the wiper relay that is the same relay>>>>>

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Hi,

You will also have to consider if the cooling system is FULL of coolant, and WHEN the engine is overheating. If the engine stays cool, and the temperature gauge stays around the "12 o'clock" position on the gauge, you should be fine. Even another major mark to the right is OK too.

But you might want to take a look at the link I have included, which describes the engine cooling system, and how the fans are supposed to operate.

Good Luck, Greg