Its a 1991 MB 350sd turbo diesel. Has around 160K miles. Ever since the car was bought, there has been a loud ticking noise, and the spring/tensioner spring always jumped.


Recently on a highway cruise, problems slowly progressed. First it started making louder than usual ticking noise. The brakes seemed like there wasnt much vacuum on them. It was also surging. This was a week ago.

Now sitting in the driveway, usually when you turn the key on, the glow plug light will shine a few moments later go off then you know its ready to start, well now the glow plug light wont shine and I believe they dont heat up either. Once you start its louder than expected. Loud ticking or clanking sound from the injection pump area. When idling, it surges. To kinda describe it, its like mmmmmmm *clack(motor jumps)* mmmmmmm *clack(motor jumps) etc etc... happens when you try to rev it also... To scared to let it run long enough to entirely warm up. The brakes were weird feeling also.

Any suggestions?