Question about Buick Rendezvous
Hose leaking and rad needs flushed and coolant replaced
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Posted on Jan 02, 2017
you should have hot water on all rad. hoses when the motor is running at a norm. temp. the water is not going through the heater core like it should. you have cutoff valve bad low water are a stopped heater.try a hoter thermostat if none of the above are true.
Posted on Jan 18, 2009
SOURCE: coolant problem
Sounds like you might have an air pocket in the cooling system. This can develop, usually after a service, where the cooling system has to be opened to replace a water pump, thermostat, or other reason. When refilled, the air displaced by coolant has to go somewhere. In many cases, youll find that air is trapped in the highest place it can go...above the level of the radiator cap or overflow bottle. This can be a portion of the upper rad. hose, a heater hose, or a coolant line running thru various parts of the intake/throttle body area. What I do after topping up the system, is let the engine warm to normal op. temp./ W radiator cap still off. When upper hose becomes hot, you know thermostat is open. Now, if a bleeding device is not present, back off a hose clamp at the highest point in the system. Take a pair of pliers and twist the hose just enough to break the seal. You should see steam or drops escaping from your "breach". Once the steam stops and becomes all coolant, you have likely bled all air from the system. Top up radiator and coolant bottle to proper mark and close the system. (tighten your hose clamp) Check for leaks. Keep an eye on your system for a day or two, to insure no leaks are present.
Caution! As with any task that involves opening the cooling system...Coolant and water can become very hot. Hot water and steam can be very dangerous. If you dont feel qualified to perform this task, let a mechanic do it!
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Posted on Feb 04, 2009
check the heater hoses and if both are hot then the mode door is broken
i have replaced 2 in the torrents(not a nice job)
Posted on Jun 21, 2009
take the thermostat out and heat it up in a pan of water to see if it will open when it gets hot.
you should see it open when it gets hot.use a cooking thermometer to watch the temp. it should open between 180 and 225 deg.
Posted on Aug 04, 2009
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