Question about 1995 Buick Roadmaster

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1995 buick roadmaster/heater and ac fan staying on

I have a 1995 buick roadmaster and the heater and ac fan wont stpo running even when the key is out of the car. what could be the problem?

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  • 267 Answers

There is a module that controls the motor located arend the blower moter that will need to be replaced. Not sure if this is available other than dealer. check with auto parts stores first. I would ask for blower motor control module.If this helps please reply and good luck

Posted on Apr 27, 2010

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If you got the motor to run, then whatever feeds that motor electricity is the culprit. Check the switch.

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Warning! I don't know how to fix this problem but I do know it's very dangerous to work on these fans. THEY CAN COME ON UNEXPECTEDLY WHILE WORKING ON THEM AND INJURE YOU. These fans can run even when the key is off. Take it to a shop that knows how to work on them.

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Both radiator cooling fans won't turn on vehicle overheats


The fans come on only when hot or the AC is on. There are many fuses that have to be good for it to work. The fan relay should have 2 pins hot with the key on, The other 2 should be ground. with the key off one should be hot and the other can then be ground the other pins that are ground one of them is the fan. the other becomes ground when the computer turns the fans on. If you don't have a pin thats hot at the relay all the time then theres a blown fuse or even the power wire from the battery at the battery

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Heater & ac fan only runs at low speed no matter what the setting


You will need to replace the fan. It is located under the Pass dash tucked in the corner. Not to expensive and you could do it yourself I think there are (3) 6mm screws that hold it in place. Correct me if I'm wrong about the size. Good luck.

Chris

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1995 Buick Riviera's fan keeps running even with the car cut off. Have looked at all the relay switches.


The blower control module needs to be replaced. This will fix a ac, heater fan that runs all the time.

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1995 Buick Roadmaster - Can't get warm air from heater


Could be a problem with the auto system, could be a bad blend door, could be a clogged heater core. Are both heater hoses hot? If so, you have eliminated the heater core. If not, probably the heater core. You wil need a computer to diagnose the other 2.

Mar 18, 2009 | 1995 Buick Roadmaster

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1996 buick roadmaster keeps overheating: already replaced the thermostat, water pump, heater core, heater control valve, hoses and anti-freeze


A shotgun approach to repairs can really rack up the bills.

If your symptoms are loss of water and you have replaced the thermostat, you more than likely have an issue with steam. And that steam more than often comes from a bad head gasket. Most head gasket gasket failures seem to be confined to the water side initially, but let it go on bigger damage will occur.
You can buy a litmus test strip to dunk in the coolant. It will indicate if there are exhaust residuals in the water and thus a gasket failure.

However it may just be something simple, given that you have just about replaced everything:

have you given the radiator a good hosing inside and out?
is the radiator fan running when it should be?

Sep 07, 2008 | 1996 Buick Roadmaster

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