Question about 1990 Buick Riviera

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My 90 Buick Riviera also has the fan that won't shut off, was wanting to know how to put the toggle switch on and where to put it. I am now disconnecting the battery each time I stop.

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Just cut either the positive or negative feed to motor. Connect 1 side of the wire to a 2 terminal on/off toggle switch & the other side to the the other side of a toggle switch. You can extend wires from both end & mount under dash if you like.

Posted on Oct 09, 2010

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Fan relay is stuck in the open position, or you have a bad coolant temp sensor.

Posted on Nov 08, 2012

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Where do I find air shocks or air struts for my 90 Buick riviera and which one do I have I'm so confused


i'm not sure that you have "air " shocks or struts , follow this link to an automotive parts site , put in your vehicle details and it will show exactly the type of suspension components you require
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Mar 30, 2015 | Buick Cars & Trucks

1 Answer

1993 buick riviera....stated it and backed out of the garage. shut it off and went inside to get my wallet. Came back out and when I turn the ignition switch......nothing!


Do your head lights come on? If not check your battery connections. If they do then go to the starter and check all connections there. Let me know how you do with this and let me know if thia=s helped or if you need further assistance. Thanks

Dec 18, 2010 | 1993 Buick Riviera

1 Answer

1996 Buick Riviera Cooling fan won't shut off. we


COOLING FAN IS CONTROLLED BY COOLANT TEMPERATURE SENSOR (CTS). REMOVE THE CONNECTOR FROM IT AND IT SHOULD STOP THE FAN.
OR JUST REMOVE BATTERYGROUND CABLE.
ITEMS TO CHECK OUT :

CTS,RELAY,CIRCUIT FOR SHORTS.
NOT LIKELY BUT IS A POSSIBILITY, THR ECU.

Jun 09, 2010 | 1996 Buick Riviera

1 Answer

Buick review


Good engine 28 mpg+ hwy. These 3800 engines had upper intake problems and would leak coolant into the combustion chamber. The new ones were re-designed and do not give any trouble. My 90 buick 3800 has 295000 miles on it. If yours is supercharged it does not have that intake problem.

Jul 06, 2009 | 1995 Buick Riviera

2 Answers

Heater/AC fan won't operate


your blower motor has gone bad and it over heats and shuts down

May 31, 2009 | 1996 Buick Riviera

1 Answer

Hard to start and won't stay running


Put fuel in it,then check the fuel pressure with a gauge. The tank unit maybe giving a false reading.

Apr 18, 2009 | 1993 Buick Riviera

1 Answer

1996 buick riviera blower motor will not shut off


The blower motor control module needs to be replaced, that will solve the problem. The module is underneath the hood on the firewall in the back. It has 2- 6mm screws. Unplug it, pull it out, put the other one back in. Plug it in. This is common for this model buick.

Jan 13, 2009 | 1995 Buick Riviera

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