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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 59 (Engine Control System & Fuel System - 5.3L - Troubleshooting & Diagnosis) >> Symptoms - Engine Controls >> Additional Symptoms Tests >> Poor Fuel Economy

Poor Fuel Economy

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Inspect for foreign material accumulation in the throttle bore, and for carbon deposits on the throttle plate and shaft. Also inspect for throttle body tampering.

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