I am having a problem with my 85 300sd. When I am going up hill or when I press the accelerator to go into passing gear, the rpms seem to go up but the car slows way down. It also feels like it is coughing and gasping for air or fuel.

Is this a turbo problem, an injector problem, a fuel filter problem or what. How do I test for the real problem and how do I fix it?

Dave

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Dave

85 300SD with 150k