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follow the radaitor hose from the top right side it goes directly to the thermostat housing remove the bolt then there is your thermostat
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∙ 18y ago
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Where is the PCV valve located in a 1990 Buick Riviera?
mine does not have one
How do you check the fusible links on a 1990 Buick Riviera?
I believe they are located on the starter.
Where is the thermostat located and how do you replace it located on a 1990 Buick Century?
inside the radiator hose
Where is the ignition coil located on a 1990 Buick Riviera?
It uses a distributorless coil pack and a crankshaft trigger sensor.
Were is the fuse box located in a 1990 Buick Riviera?
inside , right by the drivers right calf, it's hidden behind a pull out panel
How much does a 1990 Buick riviera weigh?
Curb weight, 3,309 lbs
Where is the central power supply located in a 1990 Buick Riviera?
In the Reatta it is located under the dash next to the steering collum. Silver box has "central power supply" printed on it.
What is the original wheel size for a 1990 Buick Riviera?
The original wheel size is 15"
Where is the thermostat located on a 1990 Buick Century 3300 V6?
locate the top hose on the radiator drive side follow it back to thermostat housing it's were the clamp is at on the end of the hose.
What kind of antifreeze do you need for a 1990 Buick Riviera 6-cylinder?
Regular ethylene glycol antifreeze............
Why would a 1990 Buick Riviera stall during idle or at low acceleration?
I just purchased a 1990 Buick Riviera with 45,000 on it for my daughter. However, I did have a brief period that you discribed with the car stalling out. I don't know if this will help, but I just read at another site, that it may have a faulty idle air control.
Where is the fuel filter located on a 1990 Buick Skylark?
The fuel filter is located near the rear of the vehicle, forward of the fuel tank.
