Hi got in to my car this morning everything was ok as normal was traveling to work in heavy traffic. temp guage went up to 3/4 so i flored it to stop in the hard shoulder the minute i put the foot down guage went down to normal so i said will be ok once moving put the heat on full blast and ddrove the temp gueage kept going up and down to mental tempretures the minute it would get to nearly red i would turn my car off and roll then turn it back on when i needed to. eventually i got to work and i opened rad cap there was really high pressure steam coming out and water bottle was nearly empty. would it be thermostat or water pump? or maybe just airlocked? any ideas?
Thanks in advance
Thanks in advance