Located on the very bottom of the radiator is a Large hose and the Drain Valve is there, open the valve, drain all the fluid, open the top of the radiator, hold a running water hose to fill the radiator, start the car find the balance of water flow, in the water hose and the drain. When the engine is warm about 3-5 minutes. It will then start cycling through the engine you may need to increase water hose flow now to keep the radiator full. Flush for 2-3 minutes or until crisp clear water is draining from the Drain valve. Turn off the car let all water drain completely. Then fill with Coolant. Water mix of 50%/50% coolants are suggested for summer time operation.
GoodLuck!!!
SOURCE: 2000 Pontiac Water Pump Location
dont get rid of the dex cool. there made just for gm's and is better than the green. and the water pump should be on the back side of the motor half way down
SOURCE: cant find bleeder valve foe coolant system on 96
dr_greg is incorect. The bleeder valve is on the thermastat housing near the intake manifold. Follow the hose from the top of the radiator to the the engine. Look for something that looks like a 12mm head nut with a metal nipple comming through it. If you change your coolant but do not open this valve untill coolant flows from it you may cause an air pocket to remain in your engine, possibly causing your car to over heat.
SOURCE: proper method on coolant system flush
Best way is to buy a flush kit. It is an adaptor that you put in your heater hose and can hook up a garden hose to. You cut the hose and put this device permanently in the line. Remove the thermostat, don't put the new gasket in there yet just put the outlet pipe back on and bolt it down. Run the car when cold with your hose running for about 10 minutes with the radiator drain valve open on the bottom of your radiator and the cap loose, water should come out of the drain valve and the radiator cap. This will flush your engine adequately, why waste money on distilled water, save that for topping off your battery. Turn off your engine continue to allow water from your hose to flow as long as you are seeing any thing other than clear water flow until it flows clear. Turn off the hose, put the cap on the flush port you installed. the port stays under your hood and allows you to flush your engine as needed. Let the water drain through the drain valve. Put in a new thermostat, with a gasket this time. Refill with water and antifreeze as directed in your manual. You should be good to go.
SOURCE: where is the coolant bleeder valve on 2000
On the engine next to the thermostat housing on most cars. It is a regular flathead screwdriver type screw. if you can't find it. Then slowly , without removing it, turn the radiator cap at operating temperatue. Until you hear it hiss and only coolant will come out. Do this very slowly andd carefully. The water is hot. Be careful.
SOURCE: 2000 Boxster overheating, blowing coolant out of
Whatever you do, do not drive.
I got the same problem about 4 hours ago and tried to get home.
Half way, no oil pressure, overheat, silly noise from the engine.
Take your Boxster to a shop with a truck, you'll save money.
"One Unhappy Boxster Owner"
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I don't have access to a radiator cap only my reservoir
Same use it as the fill with the hose
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