Low Engine Power Diagnosis, Exhaust Backpressure / Exhaust Restriction Test
DIY Home Mechanic diagnosing a 2001 Mercury Sable with extremely low engine power that somehow was misdiagnosed by 3 shops for over $1000 in unnecessary parts. As usual a logical, scientific approach makes the call the first time without using "parts changing" as the method of diagnosis. You absolutely won't believe the prior service history on this complaint-- scary and disturbing!!!!
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