Lack of Power, Hesitation, or Cut Out
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect the engine electrical system for correct operation. Refer to Symptoms - Engine Electrical .
- Inspect for auxiliary fuel filters. Refer to Fuel Injection Line Routing Diagram for proper fuel filter locations. Aftermarket fuel filters may restrict fuel flow.
- Compare the vehicle with a similar unit. Ensure the vehicle has an actual problem.
- Inspect for a proper transmission operation.
- Inspect the engine oil level and quality.
- Inspect for an air leak in the charge air cooler. Refer to Charge Air Cooler Diagnosis (Induction System Smoke Test) or Charge Air Cooler Diagnosis (Full System Air Leak Test) or Charge Air Cooler Diagnosis (Charge Air Cooler Air Leak Test) .
- Inspect for a worn or damaged turbo charger turbine wheel, shaft or compressor wheel.
- Inspect for a restriction in the charge air cooler.
- Inspect for a skewed mass air flow (MAF) sensor. Refer to Diagnostic Aids in DTC P0101 .
- Inspect that the exhaust gas recirculation (EGR) valve is fully closing. Remove the EGR valve and visually inspect that there is no light seen between the valves and the valve seats.
- Ensure that the EGR valve does not bind when manually moving the valve.
- Inspect the torque converter clutch (TCC) operation.
- Inspect the air conditioning system for proper operation. Refer to Air Conditioning (A/C) System Performance Test (Diesel Engine) or Air Conditioning (A/C) System Performance Test (Gas Engine w/Electric Cooling Fan) or Air Conditioning (A/C) System Performance Test (Gas Engine w/Engine Driven Fan) or Air Conditioning (A/C) System Performance Test (HP2 ) .
- Inspect the exhaust system for a possible restriction.