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Radiator could be plugged or restricted

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Q: What would cause a 91 cavalier to run at high temps while idling with the coolant reservoir still full?
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What is the cause of excessively high coolant level in the coolant recovery reservoir?

coolant fan


Can no coolant in reservoir cause engine not to start?

Coolant is used to keep an engine in a vehicle at a temperature safe for operation. If no coolant is in the reservoir, an engine will not start.


What causes coolant reservoir overflow or backup?

The radiator cap could be the cause of coolant reservoir overflow or backup. Have the cap checked to see if it is bad.


What would cause oil in the coolant reservoir in a 93 buick century?

There are a couple of things that can cause oil to get into your coolant reservoir. A blown head gasket or a broken piston ring are the most common causes.


What would cause 1998 Saturn sl1 coolant light to blink?

Either coolant is low or the sensor in the reservoir is stuck with dirt. Clean the reservoir with soap and water


Could the bottle for the coolant cause over heating if it has a split in it?

If the coolant reservoir can not maintain the proper level of coolant, it is possible the engine could over heat when the level drops.


Why could your 94 BMW be using so much coolant?

It probably has a leak. Here's something to check - the radiator has a tube coming out to the reservoir, so when it gets hot and expands the coolant goes into the reservoir and should go back into the radiator when it cools, but if your reservoir has a crack and the coolant leaks out, well it's gone and can't go back into the radiator - this would cause a lot of loss of coolant.


Oil in coolant reservoir 88 Corvette?

Do you have an oil cooler? I have heard that is a possible cause, as would be the head gaskets.


Idling speed problem of peugeot 406?

A bad coolant temperature sensor is one thing that could cause an idling speed problem with a Peugeot 406. There could also be a problem with the idle control valve.


Does a bad thermostat cause coolant to leak out?

It can if it is stuck closed the engine overheats causing hot air ( steam ) to flow backwards to radiator cap which releases and blows steam pressure into recovery reservoir which starts blowing out the coolant in the reservoir making a puddle on ground.


What would cause the heat in a car to turn cold when the car is idling?

Could be low on coolant, a stuck open thermostat or a partially blocked heater core.


What would cause the coolant to overflow from the reservoir on a 1997 Sable?

This is a indication of a blown head gasket,unless it has been over filled or overheated.If you are getting combustion in the cooling system you will see air coming up through the coolant in the reservoir,be careful it can blow hot coolant out without any warning.Most shops have a tool that will detect combustion gases in the coolant,it should be a inexpensive test.