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Home >> Saturn >> 2002 >> LW200 Automatic >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust System >> Diagnostics >> Restricted Exhaust System Check >> Notes

Restricted Exhaust System Check: Notes

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A slight pressure in the exhaust system is normal, but excessive exhaust back pressure seriously affects engine operation. Causes of high exhaust back pressure are dents/obstructions in the exhaust pipe or a plugged three way catalytic converter/muffler.