Question about 2006 Pontiac Grand Prix

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After having my radiator flushed i havent seen my fans come on is that normal?

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No it is not. But then when you have it flushed they take out the thermostat which you need to heat up water and then the fans come on via a heat sensor on the block or thermostat housing.

Posted on Nov 03, 2010

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Thanks for choosing FixYa and welcome to the site. You need to make sure your fans are working properly. If they are not, check the fuses. If the fuse is good, test the fan and the wires to the fan for current. You could have a bad water pump or water pump impeller. It may be a bad head gasket. Make sure the radiator is working correctly. Make sure that there are no leaks on the engine. Start the vehicle and inspect the engine for leaks. Check your oil and make sure coolant is not inside it. It is possible for it to leak inside.

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How do you flush rusty water out of the radiator on my 2004 LeSabre


Its best to replace radiator. You can purchase a flush kit from Auto Zone and back flush the system ( meaning go against the normal flow of coolant with a garden hose). But Rust usually means Radiator seen better days and you don't want this stuff causing problems around the head.

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How long do you have to run the engine before the radiator fan cuts on... We flushed the radiator and ran the car for a 1/2 hour but the fan still didn't cut un..is this normal


The fan will only come on at a preset temperature. If you don't reach this temp the fan wouln't come on. I had a 1998 olds and took it back to the dealer because I had never heard the fan come on. As long as the temp does not gotoo high it is normal


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Jeep Grand Cherokee running hot. I've changed the


Check your radiator for external and internal obstructions (leaves, bugs etc on the a/c condenser or leaves between the condenser and radiator, rust or calcium deposits inside the radiator core all cause loss of heat transfer)
Also make sure that the system is full and that the electric fan and the clutch fan are operating properly. (electric fan should come on just above normal operating temp and clutch fan should not be "freewheeling" above temp either)
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Over heating


try having your radiator pressure checked , or replacing your cap

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