I'm only commenting on your note below as I'm not sure why your mechanic wants to change out the coolant reservoir.... If the reservoir itself isn't leaking or has any cracks then there is no point in replacing it... I haven't seen many of the valves fail and they do come as part of the tank assembly when you order a new tank. If any air gets into the system (ie the cap isn't working right) then with less pressure the boiling point of your coolant will drop (meaning the coolant will boil faster)... you may even have some bubbles in the system in result of this..... I would say open the valve and purge the system, fill it to capacity, put a new cap on the reservoir and you should be fine...
H
Quote:
Originally Posted by MacGrad
I'm having the same coolant leak issues, and they are occurring on a "frequently infrequent" basis -- the car won't leak for a few days, and then it will drain itself of the coolant from a spot near the right rear tire. When it's leaking, you can see the drip trail on the ground when the car has been moving.
Since I'm not having any issues with moisture in the trunk, I would assume (from what I've read) that it's not a leaky tank. Would a problem with the expansion valve cause this type of behavior and, if so, is this an easy fix?
(My mechanic couldn't isolate the issue, and wants to replace the coolant reservoir. I'd prefer not to, especially if this isn't the root cause of the problem.)
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