2007 Civic Coolant issues - Honda Civic Forum



Mechanical Problems/Vehicle Issues and Fix-it Forum If you've got a problem you just can't figure out, a noise you can't diagnose, or a Check Engine Light that won't go away, ask about it here!

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 08-21-2017   #1  
Registered!!
Thread Starter
 
Join Date: Aug 2017
Age: 25
Posts: 2
Rep Power: 0
flyhotstuff is an unknown quantity at this point
2007 Civic Coolant issues

Just recently bought a 2007 Honda civic, I keep losing coolant in both the reservoir and the radiator. No white smoke, plugs look okay, no overheating, car is running like normal, I'm not sure what i could be.
The system seems to be holding pressure as the hoses are kinda hard when I run it. When i top it up and drive for a few KM and i check it, it's takes a lot of coolant to full up again, I am not seeing any visible leaks. Not sure what's going on.
flyhotstuff is offline   Reply With Quote
Old 08-21-2017   #2  
cj1
Registered!!
 
Join Date: Feb 2016
Age: 63
Posts: 13
Rep Power: 0
cj1 is an unknown quantity at this point
Re: 2007 Civic Coolant issues

Pressure test on cooling system to help locate leaks.
cj1 is offline   Reply With Quote
Old 08-22-2017   #3  
The Dongerator
 
Megalodong's Avatar
 
Join Date: May 2012
Posts: 2,374
Rep Power: 98
Megalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to behold
Re: 2007 Civic Coolant issues

Quote:
Originally Posted by flyhotstuff View Post
Just recently bought a 2007 Honda civic, I keep losing coolant in both the reservoir and the radiator. No white smoke, plugs look okay, no overheating, car is running like normal, I'm not sure what i could be.
The system seems to be holding pressure as the hoses are kinda hard when I run it. When i top it up and drive for a few KM and i check it, it's takes a lot of coolant to full up again, I am not seeing any visible leaks. Not sure what's going on.
To start with fill up both radiator and reservoir. Place a large piece of cardboard under car and run engine for 20 minutes. Pull cardboard out and check for leaks on cardboard. Also place cardboard under car for a period of operating temp to cold engine (overnight) and then check cardboard for leaks.

As CJ1 suggested do a coolant system pressure test when engine is cold. If no externals leaks are seen then your looking at an internal leak/blown head gasket or crack in cylinder head or block. The typical sign of a breeched head gasket in Honda engines is coolant loss in radiator with coolant gain in reservoir. Do a Block Test on it ..block tester is a free rental tool at Autozone or O'Reilly's..test fluid is $10. Youtube block test.
Megalodong is offline   Reply With Quote
Old 08-22-2017   #4  
Allow me to explain through interpretive dance
 
ezone's Avatar
 
Join Date: Dec 2011
Location: Deep in the midwest, aiming about mid-chest
Posts: 29,056
Rep Power: 391
ezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond reputeezone has a reputation beyond repute
Re: 2007 Civic Coolant issues

Suspect cracked block.
Check if your oil level is mysteriously rising and the oil looks like chocolate milkshake.

Here's where to look for the evidence, usually only one cracklocation is found.

Image links:
http://photobucket.com/gallery/user/Jaralaccs/media/bWVkaWFJZDo3MjU2NTY4Mw==?ref=

.
http://photobucket.com/gallery/user/Jaralaccs/media/bWVkaWFJZDo3MzAwNjI1NQ==?ref=


http://photobucket.com/gallery/user/...NTMzMQ==/?ref=



If it's been overheated, suspect warped cylinder head.
ezone is online now   Reply With Quote
Old 08-23-2017   #5  
Registered!!
Thread Starter
 
Join Date: Aug 2017
Age: 25
Posts: 2
Rep Power: 0
flyhotstuff is an unknown quantity at this point
Re: 2007 Civic Coolant issues

Well to update you guys, it was a leak, Didn't pressure test anything. It was the Gooseneck/connector going to to the heater core next to the airbox. it noticed what looked like rust on the rim of the hose, turned out it was dry coolant, when i removed the hose, the neck was filled with built up corrosion, i scraped it off, there was no pitting, so i used 600 sandpaper to sand it smooth and i used a hose clamp to secure it, running like a champ now. So if anyone has this issue always take a look.

It seems the coolant was spraying out and drying on the block/ transmission so i never saw it falling. this car is new to me btw. it has never overheated.
flyhotstuff is offline   Reply With Quote
Old 08-24-2017   #6  
The Dongerator
 
Megalodong's Avatar
 
Join Date: May 2012
Posts: 2,374
Rep Power: 98
Megalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to beholdMegalodong is a splendid one to behold
Re: 2007 Civic Coolant issues

Quote:
Originally Posted by flyhotstuff View Post
Well to update you guys, it was a leak, Didn't pressure test anything. It was the Gooseneck/connector going to to the heater core next to the airbox. it noticed what looked like rust on the rim of the hose, turned out it was dry coolant, when i removed the hose, the neck was filled with built up corrosion, i scraped it off, there was no pitting, so i used 600 sandpaper to sand it smooth and i used a hose clamp to secure it, running like a champ now. So if anyone has this issue always take a look.

It seems the coolant was spraying out and drying on the block/ transmission so i never saw it falling. this car is new to me btw. it has never overheated.
Good find. Best to bleed air from coolant system again if you haven't done so already since finding /fixing the leak.
Megalodong is offline   Reply With Quote
 
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 12:06 AM.


All Content Copyright 2017 CivicForums.com
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.