crawleysam Posted August 6, 2014 Share Posted August 6, 2014 My radiator overheated on sunday due to a crack, I had to drive home with it nearly off the temp scale and stop often to let it cool down. Ive since bought and fitted a new radiator and new coolant and still it overheats? any idea as to why Much appreciated Sam Quote Link to post Share on other sites
Ollieh17 Posted August 6, 2014 Share Posted August 6, 2014 Headgasket possibly, driving it hot would not have helped Quote Link to post Share on other sites
morgey Posted August 6, 2014 Share Posted August 6, 2014 Are you 100% sure youve bleed the system properly? Quote Link to post Share on other sites
crawleysam Posted August 6, 2014 Author Share Posted August 6, 2014 i got all the coolant out I could. It just continuely overheats and literally nothing stops it. Having the fan on seems to do jack all and no amount of airflow helps Quote Link to post Share on other sites
morgey Posted August 6, 2014 Share Posted August 6, 2014 Jack the front of the car up. Heaters on hotRad cap off. Fill coolant systemStart car with cap off.Get up to temp topping up with coolant all the time. (It will splash everywhere)Put the cap on and let the fan cut in and out. Turn it off, fill header tankLet it cool down for a few hours or over nightCheck coolant levels and top up if requiredTry it again and see if thats solved it. Quote Link to post Share on other sites
crawleysam Posted August 6, 2014 Author Share Posted August 6, 2014 i'll give that a go, thanks Quote Link to post Share on other sites
crawleysam Posted August 6, 2014 Author Share Posted August 6, 2014 the fan doesnt seem to engage at all? not volunterily anyway Quote Link to post Share on other sites
Jamie5414 Posted August 6, 2014 Share Posted August 6, 2014 try driving uphill/downhill if all else fails and you think it's not bled properly, i've had a huge airlock before and that's solved it, you will hear it glugging away when the air tries to reach the highest point, pull over and let the air out and top up Quote Link to post Share on other sites
Beastmode panda Posted August 6, 2014 Share Posted August 6, 2014 Why hasn't anyone said thermostat yet.... I bet the thermostat seal is fucked. Quote Link to post Share on other sites
crawleysam Posted August 6, 2014 Author Share Posted August 6, 2014 it looks to be an actual blockage, put coolant in the top hose and it didnt come out the bottom at all, then turned the car on and still didnt come out? was only for a couple of seconds Quote Link to post Share on other sites
TurboTobz Posted August 6, 2014 Share Posted August 6, 2014 Bleed it.Change stat.Check pumps working.Check systems not over pressurisingCheck for headgasket with dye test Quote Link to post Share on other sites
crawleysam Posted August 6, 2014 Author Share Posted August 6, 2014 Bleeding the system, must of done 8-9 times now and still when on boost the temperature rises. Any ideas? Quote Link to post Share on other sites
_shaun_ Posted August 6, 2014 Share Posted August 6, 2014 Just remove the thermostat And try it like that will let you no what's going on. Its only 2 bolts and 5min job Quote Link to post Share on other sites
TurboTobz Posted August 6, 2014 Share Posted August 6, 2014 I was going to say the above but deleted what I was typing for some reason. I cut the centre out of an old stat and bolted it back up with the seal in place. Worked a treat. Quote Link to post Share on other sites
crawleysam Posted August 18, 2014 Author Share Posted August 18, 2014 its not thermostat, anyone got any ideas Quote Link to post Share on other sites
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