03 ZX5 2.0L coolant loss problem - Ford Focus Forum, Ford Focus ST Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum > Ford Focus Tech Discussions > General Technical Chat

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 04-15-2014, 11:41 AM   #1
marsdog
Focus Rookie
 
Join Date: Feb 2012
Fan#: 94801
Location: Atlanta, GA
What I Drive: 2003 red ZX5

Posts: 11
FF Reputation: 1 marsdog Good Standing Member
Buy-Sell-Trade Rating: (0)
03 ZX5 2.0L coolant loss problem

Noticed my 03 ZX5 2.0L is 'burning' coolant recently -- lose coolant at approximately 1qt/100mile driving, no trace seen on the ground or from above the engine, no loss sitting in the garage overnight, oil looks clear so far, coolant temperature can still reach the normal range but goes up much slower than normal (e.g. reach the normal mid-range after 30+ min driving).

Any suggestion on diagnose the problem?

BTW: it has 96k miles and I changed the coolant couple weeks ago.


marsdog is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 04-15-2014, 04:02 PM   #2
Leora83
Focus Addict
 
Join Date: Sep 2009
Fan#: 69136
Location: Ottawa, Canada
What I Drive: 2003 ZX5 chrome yellow

Posts: 582
Points 448, Level 8
Points: 448, Level: 8 Points: 448, Level: 8 Points: 448, Level: 8
Level Up 96% Completed
Level up: 96% Level up: 96% Level up: 96%
Forum Activity 1%
Activity: 1% Activity: 1% Activity: 1%
FF Reputation: 1 Leora83 Good Standing Member
Buy-Sell-Trade Rating: (0)
Check the black plastic pipe that runs along the top of the radiator. Both my Foci have had splits in this little inlet pipe, along the bottom where it's invisible until it blows. I couldn't figure out where my coolant was going either, and it turned out it was spraying a fine mist over the rad and evaporating.
Leora83 is offline  
    Reply With Quote Quick reply to this message
Old 04-15-2014, 09:36 PM   #3
marsdog
Focus Rookie
 
Join Date: Feb 2012
Fan#: 94801
Location: Atlanta, GA
What I Drive: 2003 red ZX5

Posts: 11
FF Reputation: 1 marsdog Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by Leora83 View Post
Check the black plastic pipe that runs along the top of the radiator. Both my Foci have had splits in this little inlet pipe, along the bottom where it's invisible until it blows. I couldn't figure out where my coolant was going either, and it turned out it was spraying a fine mist over the rad and evaporating.
Do you mean the hard plastic tube with two smaller branches, one of which runs into the thermostat housing? Took a quick look there but couldn't find any sign of leaking. How did you eventually figure it out, before it blows?
marsdog is offline  
    Reply With Quote Quick reply to this message
Old 04-15-2014, 10:18 PM   #4
marsdog
Focus Rookie
 
Join Date: Feb 2012
Fan#: 94801
Location: Atlanta, GA
What I Drive: 2003 red ZX5

Posts: 11
FF Reputation: 1 marsdog Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by marsdog View Post
Noticed my 03 ZX5 2.0L is 'burning' coolant recently -- lose coolant at approximately 1qt/100mile driving, no trace seen on the ground or from above the engine, no loss sitting in the garage overnight, oil looks clear so far, coolant temperature can still reach the normal range but goes up much slower than normal (e.g. reach the normal mid-range after 30+ min driving).

Any suggestion on diagnose the problem?

BTW: it has 96k miles and I changed the coolant couple weeks ago.

Took a closer look at the area below the infamous leaky thermostat housing -- does the very light green stuff look like coolant stain? there is grease-like stuff around the PCV valve, is it relevant?
Attached Thumbnails
Click image for larger version

Name:	IMAG0498.jpg
Views:	7
Size:	233.9 KB
ID:	41074  

Click image for larger version

Name:	IMAG0499.jpg
Views:	7
Size:	230.9 KB
ID:	41082  


Last edited by marsdog; 04-15-2014 at 10:20 PM. Reason: typo
marsdog is offline  
    Reply With Quote Quick reply to this message
Reply

Bookmarks & Social Networks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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

Forum Jump


All times are GMT -5. The time now is 08:44 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Cadillac ATS-V, Ford Fusion and Acura TLX. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.