Lately I have noticed a somewhat medium pitched moan that seems to be originating at the left rear corner of the car. It seems to do it while accelerating from either a stop or near stop, and only seems to happen while turning right or sometimes driving straight ahead.

I only get to drive the car about once a week. My 17 year old son is the main driver. I have asked him to pay attention to the sound, but you know how some teenagers can be. I will try to take the car for a spin this weekend.

Any ideas? Thanks,

Doug Vazquez

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1980 Mercedes 300 SD, 215,000miles
2001 F-350 Powerstroke turbodiesel, Crewcab, 4x4, 81,000 miles
1993 Chevy Suburban, 185,000 miles