J50DUB 0 Posted August 12, 2006 Hi my car has air in the coolant system well i think it has when running the water level is just below minimum then once stopped cap open lit just shoots up over max then back down again gradually its making the water level rise but only slightly any tips on what too do.... the bloke who did my eninge was a real :x :x :x :mad: idiot Quote Share this post Link to post Share on other sites
ZippyVR6 0 Posted August 12, 2006 Turn the engine over and leave it running with the cap off the expansion tank. Let the water heat up to about 80 degrees, then the thermostadt opens up and whooshes the water around the system. leave it running a bit and the air should work its way out of the system. to make sure squeeze the hose that leads to teh top of the radiator, that should either create bubbles or raise the level in the tank. then top up with coolant and run for a day or two. then check again. If the system is airtight then all should be good. if it has dropped again you have a leek somewhere. Quote Share this post Link to post Share on other sites
J50DUB 0 Posted August 13, 2006 thankyou :) :) Quote Share this post Link to post Share on other sites
Supercharged 2 Posted August 13, 2006 Also worth trying a new cap for the sake of a fiver too - the pressure relief valves seize up, new ones are blue and have been revised i think... Quote Share this post Link to post Share on other sites
J50DUB 0 Posted August 13, 2006 the expansion tanks only about 2 months old if that and im pretty suretheres pressure!! lol james Quote Share this post Link to post Share on other sites
