Where is the coolent upper engine block drain plug on a 1998 Accord v6 sedan? I have air mixed in with my coolent and what i need to do is run the car and losen that bolt to let the air out and then tighten it back up. If you could tell me where it is located or post a diagram that would be great! Thanks!

 

http://www.hondaautomotiveparts.com

try this website and search for a diagram.

I've drain my coolant and seldom drain the block, there should be a bleed bolt to burp the system (usually located on the T-stat housing), unless your V6 is different from the Inline 4 accords.

 

u can purge air from coolant system by removing the radiator cap and letting the car run til the fans turn on..

 

there you go.

Per AllData

 

Thanks for the help but wont the coolent spill out if the cap is off while the car is running?

 

No. Practically, this is done every time someone change the coolant and purges the system of air.