hey guys...i drive a 91 crx si with b16........when bleeding the coolant system,does the car need to be on? and how long do i bleed it for? and do i need to flush the radiator as well?..i wanna make sure i do this right..thanks in advance

 

Yes car running, let it warm up, turn heat to hot on heater controls.

then open bleed valve slightly, you'll see coolant come out and if its bubbly then let it run until a steady stream of coolant comes out with no air in it.

 

 

need to have the cap off too

 

where is the valve? im doing the same...

 

 

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Nice first couple'a posts there

The bleeder valve is located on the upper water neck (where your upper rad hose connects to the cyl head).

 

you can also just jack the front of the car up and leave the rad cap off and wait for the fan to come on a couple times. you want to get the top of the rad the highest point of the collant system.