coolant bubbling - PassionFord - Ford Focus, Escort & RS Forum Discussion



Ford Focus This forum is for discussion of all things pertaining to the Ford Focus Range that doesnt belong in the seperate ST & RS sections..

coolant bubbling

Reply
 
 
 
Thread Tools Search this Thread
Old 12-07-2018, 02:52 PM   #1  
fixanycar
Virgin
Thread Starter
 
Join Date: Jul 2018
Location: crawley
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Default coolant bubbling

Hi ford focus (2005) mk2, ( pre-facelift) 1.6 petrol.
Had a leaking heater matrix, which is now done, not a nice job!
Now when you run it up, get warm air in car fine, car runs up & fans kick in. But keep getting boiling inside the expansion tank, temp gauge stays normal.I have since replaced the thermostat & now on idle it is ok, a few bubbles just as the fan kicks in but nothing serious, however if you run it with the cap off then it boils over when the fans kick in, stops when the fans stop. Just taken it for a 20 mile drive, performed as you would expect but again boiling inside the expansion tank and the pressure cap ( which is brand new, 2nd 1 in case 1st was faulty) releases & then coolant leaks on the ground.
Any ideas people?
fixanycar is offline   Reply With Quote
Old 12-07-2018, 07:36 PM   #2  
RichieST
15K+ Super Poster!!
iTrader: (2)
 
RichieST's Avatar
 
Join Date: Aug 2004
Location: Wiltshire
Posts: 18,412
Thanked 381 Times in 334 Posts
Default

It will boil with the cap off. Sounds like head gasket, needs a sniff test to see if it's exhaust gases.
RichieST is offline   Reply With Quote
Old 13-07-2018, 05:36 AM   #3  
fixanycar
Virgin
Thread Starter
 
Join Date: Jul 2018
Location: crawley
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Have done sniff test & cylinder leakage test, both passed fine

Last edited by fixanycar; 13-07-2018 at 05:37 AM.
fixanycar is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Saff 4x4 coolant bubbling RSRoy Ford Sierra/Sapphire/RS500 Cosworth 3 13-05-2009 02:46 PM
Paint bubbling after 18 months, spot repair?? daviddunlop83 General Car Related Discussion. 6 30-06-2006 08:58 PM
Bubbling header tank? MATCOS Ford Escort RS Cosworth 13 05-06-2006 07:50 PM
Overflow tank bubbling on sapph cossie nzcossie Technical help Q & A 3 26-12-2004 06:43 PM
esc cossie lower spoilers - is bubbling up common?? Gadget General Car Related Discussion. 33 21-07-2004 05:59 PM


Tags
air in system, bleeding, coolant, fan, leaks

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

Forum Jump


All times are GMT. The time now is 10:59 AM.


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.