GolfGTIforum.co.uk

Model specific boards => Golf mk4 => Topic started by: greenhornetgti on 11 February 2012, 18:56

Title: Heater problems after head gasket change. HELP!!!
Post by: greenhornetgti on 11 February 2012, 18:56

Hi ive just changed the the head gasket on my 1.6 golf e/c AEH but the heaters are blowing cold, i have tried bleeding but it makes no difference. has anyone got any ideas or know if theres a specific way to bleed them? Any help is much appreciated.

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: jonnyturbo on 11 February 2012, 18:57

themostat ?

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: greenhornetgti on 11 February 2012, 19:09

cheers i thought i might be that, i'll change it and see what happens. do you know if you have top bleed them in a specific way?

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: jonnyturbo on 11 February 2012, 19:32

Could well be temp sender also

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: greenhornetgti on 12 February 2012, 10:33

just changed the thermostat and its still blowing cold air. any other ideas. does it need jacked up and bleed or something?

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: badboybunty on 12 February 2012, 10:53

flush coolent system if coolent/oil mixed :smiley:

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: badboybunty on 12 February 2012, 10:55

also put heaters on full blast on windscreen might have a airlock

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: greenhornetgti on 12 February 2012, 11:00

cheers mate i'll give it a go now and let you know how i get on

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: greenhornetgti on 12 February 2012, 12:02

i've tried all the above but still no joy, i also flushed the heater matrix and refilled the water system but when i feel the matrix pipes one is hot and the other is cold. is there anyway i can force the air locks?

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: badboybunty on 12 February 2012, 12:48

did oil/water mix in the expansion bottle sounds like blockage or air lock

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: badboybunty on 12 February 2012, 12:57

if no joy at end of day take for a spin with heaters full blast park up take cap off slowly and leave to cool over night trapped air will escapeas cools down :wink:

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: greenhornetgti on 12 February 2012, 13:36

yeah the oil got into the water. how do i get a blockage out, do i flush it with a hose pipe?

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: badboybunty on 12 February 2012, 13:44

taken from another site while searching but never done this before:

Simply mix a solution of 50% bleach and 50% water. Drain the vehicles cooling system and then refill with the new mixture. Run engine until at normal operating temp and then switch off. When engine has cooled sufficiently, drain and refill with the correct antifreeze/ water mixture. The cooling system of your engine will have been thoroughly cleaned by this method (as recommended by Vauxhall).

http://www.honestjohn.co.uk/forum/post/index.htm?t=51700

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: badboybunty on 12 February 2012, 13:50

or try

http://www.autokits.co.uk/forte-bio-degreaser-p-36.html?zenid=6f62be5b744ea55f4b53b3eb6f19b11c

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: greenhornetgti on 12 February 2012, 14:46

cheers i'll give it a go next, thanks for all your help mate

Title: Re: Heater problems after head gasket change. HELP!!!
Post by: badboybunty on 12 February 2012, 15:07

no worries mate keep us informed how you get on :wink: