Right I have a problem with my impreza (2003 blob eye with 59k miles on clock), there seems to be an intermittent over heating problem. It started when we had severe snow/icey weather, the car was working fine but all of a sudden the temp guage jumped to just under the red. Now when this did this the heater inside the car started to blow cold air. I turned off the car and luckily i was near a garage so i bought some coolant. Recently before this happened i had a problem with a hose that split and spilt coolant out of the car. I took it to my local garage and they replaced the pipe BUT i dont think they replaced the coolant!!! So when i filled the car, it took almost 5 ltrs of coolant!!!(just to note the coolant was full in radiator as it over spilt out of rad and expansion tank - but car wasnt cold)
Anyway ever since then it was working fine no issues, then again just recently the car over heated after putting my foot down and the heaters inside the car blew cold air. But as i let it cool and then drove off slowly the heaters kicked in and the temp stayed normal until i got home, no issues. Recently i put some more coolant in the radiator when the car was stone cold and it didnt fill to brim! I put about 0.5 ltrs in + 1 ltr of water. But the expansion tank was half full...i checked the header tank on engine and that feels empty or close as damn it (i stuck my finger in!).
Can anyone explain this problem to me?! Ive had a look on loads of forums and alot of people are saying thermostat? and dreaded head gasket!!!!
Bit more info on this- the fan kicks in as normal but only passanger side fan not drivers side. The top of radiator is hot but bottom is cold. Do you think it could be an air lock?! Its going in to the garage i use next week, my issue is that this garage is 20 miles away! as ive moved house! Any ideas or pointers on how to get it there? If heater kicks inside car then temp will stay normal but if it starts blowing cold air im screwed!!! Also i have checked oil to see if there is any gunk on cap or dip stick and there isnt, NO white smoke either..car feels same kind of power i think?? erm and expansion tank doesnt smell like sulpher... does this rule out HG? But i did realise before that both the rad cap and the header tank cap rubber seals are damaged..would that change anything?
ANY HELP WILL BE APPRECIATED!!! I just want it fixed so i can sell it! Ive had it four months and theres been nothing but problems! Bad engineering...give me a Honda Type R any day!