Pedro Posted January 25, 2009 Report Share Posted January 25, 2009 My 94 diesel escort van has no heating and I'm getting fed up with being freezing. I changed the thermostat a few weeks ago, (it ran very cold) and for about 30 seconds heat came out of the blowers. I've bled masses of air out of the valve on the top radiator hose, and again, the heating works for a short while, but then goes back to bloody cold There seems to be an air lock in there somewhere, but I can't flipping get it out. I look ridiculous driving round to Heathrow at 5 in the morning with a bloody great fur hat on, puffa jacket, scarf and gloves, (plus a blanket over my knees ). Any ideas chaps? P. Quote Link to comment Share on other sites More sharing options...
hotshotshooter Posted January 25, 2009 Report Share Posted January 25, 2009 you could try taking bothpipes off the heater matrix and get a hose pipe and flush the matrix out this will ensure the flow of warm water thw other thing to check would be that the temperature knobe is moving the valve to let the warm water flow hope this helps Quote Link to comment Share on other sites More sharing options...
kev 1 Posted January 25, 2009 Report Share Posted January 25, 2009 (edited) :good:Plus flush water both ways and use air line after if possible Edited January 25, 2009 by kev 1 Quote Link to comment Share on other sites More sharing options...
Pedro Posted January 25, 2009 Author Report Share Posted January 25, 2009 I flushed the heater matrix out both ways and there's no blockage in there, (although there's radiator flush in the system at the moment just to make sure). The temperature ***** ok too. Thanks for the reply though. P. Quote Link to comment Share on other sites More sharing options...
kev 1 Posted January 25, 2009 Report Share Posted January 25, 2009 Your water pump hasn't packed up has it? Quote Link to comment Share on other sites More sharing options...
Paul223 Posted January 25, 2009 Report Share Posted January 25, 2009 Keep getting air in there to bleed out, are we talking lots? is it using water? Quote Link to comment Share on other sites More sharing options...
Pedro Posted January 26, 2009 Author Report Share Posted January 26, 2009 It's not a cracked head either - no milky film in the rocker cover and it's not using water. I think I'm just going to have to keep bleeding it. P. Quote Link to comment Share on other sites More sharing options...
codling99 Posted January 26, 2009 Report Share Posted January 26, 2009 take cap of water bottle and run engine for a while,should clear it Quote Link to comment Share on other sites More sharing options...
Pedro Posted January 26, 2009 Author Report Share Posted January 26, 2009 I'll give it a go tomorrow, cheers. P. Quote Link to comment Share on other sites More sharing options...
Paul223 Posted January 26, 2009 Report Share Posted January 26, 2009 If you have to add water to bleed air out, after it has already been bleed and ran fine, then it is using water, your vans engine only holds 8.6 lts of coolant, you can not keep adding 1/2 a ltr to bleed air out with out it going somewhere, the smallest of leaks will leak air in too, air which will trap at the highest point, the heater Quote Link to comment Share on other sites More sharing options...
Pedro Posted January 26, 2009 Author Report Share Posted January 26, 2009 Cheers Paul, I think I may have misled you/put the wrong thing in. I haven't added any water at all to the system, (apart from a bit after fitting the thermostat). My brother, (an ex mechanic), thought it might have been the expansion bottle lid. However, when I released it just now, it hissed, showing a build up of pressure - apparently about 12psi. I'm intrigued by Codlings post, as Bruv reckons it should be built up to pressure, then have the air released from the valve. He even suggested jacking it right up so that's the highest point and then trying. I attempted such a thing on a really steep slope nearby and for about 30 secs got some heat - rapidly replaced by chilliness It's getting to the point where I'm going to take it into Fords and get them to do it, (following an estimate for the job ). Pedro. Quote Link to comment Share on other sites More sharing options...
codling99 Posted January 26, 2009 Report Share Posted January 26, 2009 i had same prob in my escort van,was told to open lid of expansion tank bottle,and rev it for a while,keep n eye on it ,and it was bubbling and stuuf,then it empyied bottle when air came out,topped it up an it been fine since Quote Link to comment Share on other sites More sharing options...
lurcherboy Posted January 26, 2009 Report Share Posted January 26, 2009 PM me Pedro. LB Quote Link to comment Share on other sites More sharing options...
fishman307 Posted January 27, 2009 Report Share Posted January 27, 2009 With engine ticking over, Remove ONE heater pipe end (highest if poss, ) Run hosepipe into rubber hose nice and gentle, When water runs through full system and out of heater stub with NO bubbles, Carefully and quickly replace hose. Make sure engine is warm enough to open thermostat whille you do this, It has got a thermoastat in i presume? Quote Link to comment Share on other sites More sharing options...
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