How frustrating! I hope that you find the source of the problem with out to much expense. Our family has four cars and I always expect one of them to have an issue. My wife's is brand new, daughters is three years old, son (on his fourth car-three wrecks) is in a twenty four year old Jeep Grand Cherokee, and I drive a fifty three year old Jeep CJ that has not cost a cent other than regular maintenance. My son's car has been an on going source of fix up issues that, thankfully, he and I have been able to address. It has provided good bonding as we figure out what is wrong and fix it over a few beers on a Friday night. We have three things to address at this time: re-sealing his windsheld, replacing his windshield wiper fluid reservoir and replacing a coolant sensor.