When the creatinine level is lower in the urine test, it indicates people may have kidney problem. As the creatinine is mostly excreted by kidney function, and the damaged kidney function cannot excrete the creatinine out, which will cause the high creatinine level in blood and low creatinine level in urine.
Then, you will not damage anything if timing belt breaks. You simply need to pay for a new one to be put on. Also, the timing belt should last 105,000 miles.       Other symptoms may include engine vibration sometimes bad enough to set a knock sensor code.
Don't prolong this problem. Get a new timing belt tensioner replacement. Your engine is composed of numerous components that work together to bring out the best in your car. These parts need to be in-tune with one another for an unparalleled engine performance. The entire engine relies on the timing belt to tune the components together.