What coolant do I use for my 2000 oldsmobile bravada?

If you are looking for some sort of water valve that diverts water to/from the heater core, forget it. They don't exist anymore. They went away shortly after the widely adapted use of air conditioning in today's modern cars. Now, hot coolant is routed thru the heater core at all times, but is controlled by a cable-operated, or vacuum operated "blend door" located inside the heater box. If you are not getting heat to the vehicle, there are a few possible problems:

1. Bad thermostat - thus low coolant temperature and lack of heat.
2. Clogged heater core - no water flow thru core, thus no heat.
3. Broken control head - loss of cable or vacuum actuation of blend door.
4. Broken heater box/vacuum tank - no actuation of blend door.

Of the items listed above, based on the age of the vehicle and the likelihood of occurrence, I would investigate them in the order of 2, 4, 1, 3.

1997 Oldsmobile Bravada heater core removal - YouTube

? 3:22
www.youtube.com/watch?v=7OwIuiYqt0s

Oct 25, 2012 - Uploaded by Lloyd Ankney
1997 Oldsmobile Bravada heater core removal ... How can I replace a blend door actuator on a 99 Bravada? .... Heater core replacement 2000 S10 4.3L ( slideshow picture ) - Duration: 3:52. by Joe Lleras 169,585 views. 3:52.

Oldsmobile bleed air in heater core Cars & Trucks ... - Fixya

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If your cooling system has any bleed screws incorporated, crack them once in a while as well. 2000 Oldsmobile Bravada heater blows cold air. Had a new heater .

for that vehicle, these sites differ from 17.5 to 18.6 gallons

courtesy of the following link from doing a simple google search:

2000 Oldsmobile Bravada Base 4dr SUV 4 3L V6 AWD 4 speed Automatic...

http://www.cars.com/oldsmobile/bravada/2000/specifications

Used 2000 Oldsmobile Bravada Performance Specs 2000 Oldsmobile Bravada...

2000 Oldsmobile Bravada

2000 Oldsmobile Bravada Fuel Economy

do you have coolant flow through heater core? Does the blower motor work? If that checks out, maybe a temp door under the dash has a problem?

The 2000 Oldsmobile Bravada spindle nut is 36mm, and the Torque specification is 203 ft-lb.
To remove the nut you need a very powerful impact drive, or 1 inch drive socket tool.

I do believe it is a maxi fuse in a little fuse box in the fender right beside the battery.

a common problem is the intake gaskets will leak between the cylnder head and ihe intake

Hello the bravada and the s10 blazer are bad about the heater cores air locking or either stopping up. Disconnect the heater hoses at the firewall and run a water hose to the inlet then try the outlet until the water is clear of debris then reconnect and refill with coolant remember 50/50 coolant water. Pure coolant will freeze and so will pure water. Thank you

check the thermostat and coolant level

Key on 5 minutes, off 5 secs. Fire it up, easy as that.