Important! : Still Overheating after bleeding, Need help

  1. Newbie Joined: May 2010 Halifax Posts: 11 1998 Citroen Saxo 1.6 VTR
    #1
    We have replaced the radiator on our Citroen Saxo VTR and have bled the system, tried to purge with hose, re-bled, pumped hoses and everything else we can think of.
    However we still can not stop the car overheating, there is a gurgling noise from the heater matrix which indicates air still in system . Please help were out of ideas !!!!!!!!
  2. Forum Section Moderator Joined: Apr 2009 Orpington Posts: 1406 My son drives a Poseidon Blue Saxo Mk2 1.6i VTR.
    #2
    Hi, have you changed the thermostat?

    You may need to use a header tank (2L empty bottle of cola). I'll see if I can find a picture.
  3. Forum Section Moderator Joined: Apr 2009 Orpington Posts: 1406 My son drives a Poseidon Blue Saxo Mk2 1.6i VTR.
    #3
    Here is a guide to bleeding the system: http://www.saxperience.com/forum/showthread.php?t=98877
  4. Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R
    #4
    Did it overheat before you changed the radiator?

    How does the car run?
  5. Newbie Joined: May 2010 Halifax Posts: 11 1998 Citroen Saxo 1.6 VTR
    #5
    We have gone through 3 thermostats and fitted brand new radiator and due to the old radiator being dodgy when we bought it we can not be sure.
    The car has since we bought it run freely but also as moments where the revs drop and its lumpy
  6. Newbie Joined: May 2010 Halifax Posts: 11 1998 Citroen Saxo 1.6 VTR
    #6
    Also we have done exactly what that link has told us. It seems we have an airlock that we cant get rid of.
  7. Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R
    #7
    Could it be a dash temperature sensor fault?

    Going through 3 thermostats doesn't sound right? Are they Citroen thermostats or a different make?

    Does your fan cut in when it gets hot?

    No gunk on your oil cap?
  8. Forum Section Moderator Joined: Apr 2009 Orpington Posts: 1406 My son drives a Poseidon Blue Saxo Mk2 1.6i VTR.
    #8
    Did you use a header tank/bottle filled so the coolant level is higher than any bleed point?
  9. Saxperience Forum Bum Joined: Oct 2004 South Posts: 3638
    #9
    firstly, does the fan kick on and off?

    did you bleed all 3 bleed points? as thats the only way any air will be trapped if not doing all of them in the order...
  10. Newbie Joined: May 2010 Halifax Posts: 11 1998 Citroen Saxo 1.6 VTR
    #10
    No the gauge is fine, we can hear water in the heater which means that there is air in there.
    No oil anywhere. Headgasket was replaced and they are citroen thermostats 2 were second-hand.
    fan kicks in as it should
    and we have bled from the three points
  11. Frequent Poster Joined: Jun 2006 Cannock Posts: 973 Citroen AX VTS
    #11
    Turn the heater onto full and bleed again as normal, you'll notice it takes alot longer to heat up, the air lock you can hear is in the heater matrix. If that fails to work start looking at head gasket
  12. Newbie Joined: Jun 2010 Posts: 1
    #12
    Hi I'm over heating to my light keeps coming on and off Im not Tamils to theses radiators I was wondering where I bleed it from or how to bleed them useually they have a screw can find a bleeding point if this doesn't work I'm gonna try a new thermostat and then change the water pump are I getting a screetching sound with this over heating if so sounds like u need a new water pump to !
  13. Saxperience Post Whore Joined: May 2010 Posts: 6234
    #13
    change ur thermo, and semor if nothing works and you changed ur radiator its your head casket, mine went 2 months back and sounds like the same prob, you can always look at ur water pump, it might not be feeding enough water around fella