1981 Mercedes Benz 300sd loss of power at higher speeds

1981 MERCEDES BENZ 300SD
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WILLIAMVARGO
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Engine Performance problem
1981 Mercedes Benz 300sd 6 cyl Two Wheel Drive Automatic

Seems to have lots of power on take off, in all gears. But boggs out at times, especially going uphill.
Feb 11, 2010 at 11:07 PM
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DR LOOT
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When is the last time you change the primary and secondary fuel filter?
Feb 26, 2010 at 9:47 PM