Hard Start
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.
- Verify that the ECT has not shifted in value. Refer to Temperature Versus Resistance (ECT Sensors) or Temperature Versus Resistance (EGR Temperature Sensors) or Temperature Versus Resistance (EGT Sensors) or Temperature Versus Resistance (Fuel Temperature Sensor) or Temperature Versus Resistance (IAT Sensor 1) or Temperature Versus Resistance (IAT Sensor 2) .
- Inspect for a slow cranking speed. Refer to Symptoms - Engine Electrical .
- Verify the engine electrical system for correct operation. Refer to Symptoms - Engine Electrical .
- Verify that the driver is using the correct starting procedure as described in the owners manual.
- Inspect for a restriction in turbocharger inlet duct.
- Inspect for a restriction or a leak in the intake manifolds.
- Inspect the exhaust system for a possible restriction. Refer to Restricted Exhaust .
- Inspect for excessive crankshaft endplay that will cause the CKP sensor reluctor wheel to move out of alignment with the CKP sensor.