Weird Coolant leak. I have some pics attached.
Thread Starter
Registered!!
Joined: Oct 2016
Posts: 1
Likes: 0
Rep Power: 0 
Weird Coolant leak. I have some pics attached.
Leaking only when the revs get around 3 grand? Oil is fine but im just lost. Cant tell where its exactly coming from but the route it has taken is coming off of that plastic above the oil filter. 2004 civic 450k miles. 5speed lx.
OF top 99.5% creator (Formerly of the Puffinblunts variety)
Joined: May 2012
Posts: 3,634
Likes: 109
Rep Power: 209 
Re: Weird Coolant leak. I have some pics attached.
Have you removed the air box and air intake hose and inspected from the top? Could be as simple as a coolant or heater hose leak. Possibly the water outlet O-ring or seal.
Do a coolant pressure test while engine cold.
Do a coolant pressure test while engine cold.
Last edited by Wankenstein; Oct 30, 2016 at 02:55 PM.
Registered!!
Joined: Aug 2014
Posts: 43
Likes: 0
From: London, ON,
Rep Power: 0 Re: Weird Coolant leak. I have some pics attached.
there is a coolant transfer pipe runs across the back of the motor from the back side of the water pump around to the front PS near the thermostat. I had to replace mine when I had the head off as the pipe had heavy rust on it and was easier to replace with the head off. Was only ~ $50 from stealer.
Gotta love the road salt
Gotta love the road salt
Registered!!
Joined: Mar 2011
Posts: 2,499
Likes: 5
Rep Power: 208 
"Marge, anyone could miss Canada! All tucked away down there."
Joined: Feb 2016
Posts: 9,629
Likes: 1,282
From: Barrie, ON Canada
Rep Power: 221 
