One problem related to radiator hose has been reported for the 1998 Mazda 626. The most recently reported issues are listed below.
Overflow tank for radiator has cracked and lost all water to my car at least 5 times since 2004, I have gone to alhambra Mazda for help also to Mazda corporate headquarters in irvine, all refuse to acknowledge the problem. I was towed over 800 miles this summer due to breakage, the seam around dto tank cracks and leaks, causing heating problems, they stated that it was a unknown problem and that it was the way I drive, this is not possible, the part is defective, it will crack at any time or place, they keep trying to do pressure test and make me replace sensors, there is no problem with sensors. Please help me, I am seventy and cannot afford a new car. I am a good driver and keep my car serviced.