Ed 2 Posted March 10, 2009 Report Share Posted March 10, 2009 Why would the expansion tank start pissing coolant out after the car has been run? it clearly has a leak in it! but when i puled over it almost looked like it was overheating an spiriting out the expansion tank! I got my vag com on last night an no fault codes shown!Im going to replace the expansion tank and cap but not sure if there isnt something else rong like a nakerd water pump or sumit! Link to post Share on other sites
rigs 0 Posted March 10, 2009 Report Share Posted March 10, 2009 I could be the cap not holding the pressure in. When the engines hot and you turn it off the pressure builds for a short while.I doubt vagcom will show any codes for coolant temperature / pressure etc... Could be wrong though. Link to post Share on other sites
mpgscott 0 Posted March 11, 2009 Report Share Posted March 11, 2009 Have you tried the water pump??What temp is the oil saying? Link to post Share on other sites
Ed 2 Posted March 11, 2009 Author Report Share Posted March 11, 2009 when you say tried water pump? how do i chck the water pump? oil was reading 96 oc on last run! Link to post Share on other sites
rigs 0 Posted March 12, 2009 Report Share Posted March 12, 2009 If the car drives normally without overheating then the water pump is most likely fine. Link to post Share on other sites
Bobtrude 0 Posted March 12, 2009 Report Share Posted March 12, 2009 It might be because your thermostat is gonne.You can diagnost this by checking if all of the coolanthoses are hot. . . . if the one on the bottom of the radiator is cold while the one on the top is hot (or is it the other way round?) it should be the thermostat.The expantioncap will let out the exessive heat so the coolant hoses dont burst.The thermostat lets hot coolant flow to the radiator so it can get cold again, if its shut the coolant will boil.PS: wouldnt drive the car in this condition. Link to post Share on other sites
Ed 2 Posted March 12, 2009 Author Report Share Posted March 12, 2009 well there is a slight leak from around there so going to replace that all new housing , seals an thermostat! etc Link to post Share on other sites
Bobtrude 0 Posted March 12, 2009 Report Share Posted March 12, 2009 Thats smart, its a weak link in the vr6 engine. Link to post Share on other sites
russvr6 0 Posted March 13, 2009 Report Share Posted March 13, 2009 Mine was doing the same ending up being thermostat Link to post Share on other sites
Ed 2 Posted March 13, 2009 Author Report Share Posted March 13, 2009 well kits here im waiting to get home an get fixiing! Link to post Share on other sites
Bobtrude 0 Posted March 14, 2009 Report Share Posted March 14, 2009 remember to put grease on the O ring so they dont break. . . . Link to post Share on other sites
Ed 2 Posted March 14, 2009 Author Report Share Posted March 14, 2009 qll fitted an not leaking! did it last nite! The coolant has stopped leaking but the misfire when warm is still there! Link to post Share on other sites
Ben Seabrook 4 Posted March 14, 2009 Report Share Posted March 14, 2009 well kits here im waiting to get home an get fixiing!where did you get your kit from mate ? Link to post Share on other sites
Ed 2 Posted March 14, 2009 Author Report Share Posted March 14, 2009 http://search.stores.ebay.co.uk/tierod69_vr6_W0QQfciZQ2d1QQfclZ4QQfsnZtierod69QQfsooZ1QQfsopZ1QQfsubZ404666014QQsaselZ122440964QQsofpZ0 Link to post Share on other sites
Recommended Posts