coolant leaking just from overflow tube on expansion tank
#1
coolant leaking just from overflow tube on expansion tank
Hi guys, pretty new here but Ive read a ton. So I have a 99 disco 2 117000 miles, everything seems solid, but I have a small coolant leak from the overflow tube on the top of the expansion tank. Doesnt happen all the time and I just have to top off the coolant a cup or 2 every week or so. Checked over the whole engine no signs of coolant anywhere else. Had it checked by an indy mechanic in town said he couldnt see what the problem was and to just keep an eye on it. Ive read around here and figure it could be air in the system or possibly a stripped expansion tank cap. Anybody have any experience wuth these symptoms?
#2
#3
#4
#5
Hi guys, pretty new here but Ive read a ton. So I have a 99 disco 2 117000 miles, everything seems solid, but I have a small coolant leak from the overflow tube on the top of the expansion tank. Doesnt happen all the time and I just have to top off the coolant a cup or 2 every week or so. Checked over the whole engine no signs of coolant anywhere else. Had it checked by an indy mechanic in town said he couldnt see what the problem was and to just keep an eye on it. Ive read around here and figure it could be air in the system or possibly a stripped expansion tank cap. Anybody have any experience wuth these symptoms?
Like lipadj46 said, get it tested. Or you can go to NAPA and get a block tester kit (part# 1007006, about $45) and check it yourself.
EWATK, I'm experiencing the same thing on my 2002 II se w/ 75,ooo miles. I don't have an answer but I want to share that I see the temp guage go to the upper third of the indicator( not in the red) once in a while. I'm wondering if the head gasket is occasionally leaking? Thanks
Eric
The following users liked this post:
XRAD (07-11-2020)
#6
#7
#8
Holy cow, welcome back mike. Just to expand on that. The pressure along with the solute dissolved in the water (ethylene glycol) is what raises the boiling point of water. If you have a leak your system is no longer pressurized and the coolant boils.
Last edited by lipadj46; 08-26-2010 at 03:05 PM.
#9
I've replaced all the hoses, throttle body heater plate, water pump in the last 8 months. Drove about an hour no more the 50 mph, thermostat stayed at 3/4 never getting into the red which is temp it normally runs at. I did not used the AC. I parked it about an hour, went back outside and there is a significant amount of coolant on the ground that appears to be coming from the overflow tank. any ideas?
Last edited by mcdanli; 10-10-2016 at 08:41 PM.
#10
If gauge reading that high too high. Either it's not reading correctly or your temp is too high. Do not continue driving D2 unless gauge shows normal.
Ensure cooling system is serviced and bled of air. If coolant coming out of overflow tube and reservoir/fitting for hose not leaking replace the cap and get a reliable way to monitor your temps such as a OBDII ScanGauge or UltraGauge. Those are at least some of the first steps.
......
Last edited by number9; 10-10-2016 at 10:31 PM.