Code P0335 on the 2024 Chevrolet Colorado indicates a malfunction in the crankshaft position sensor (CKP) circuit. This sensor is critical for engine operation - it tells the ECM the exact position and speed of the crankshaft for fuel injection and ignition timing. Failure can cause no-start conditions.
Crankshaft Sensor Importance
The CKP sensor monitors a toothed wheel (reluctor ring) on the crankshaft, generating a signal pulse pattern the ECM uses to determine crankshaft position to within a few degrees. This precision is essential for sequential fuel injection timing and ignition spark timing. Without this signal, the engine cannot run or starts very roughly.
P0335 Symptoms
Depending on severity, symptoms range from intermittent stalling, rough running, and hard starting to complete no-start condition. The engine may crank but not fire. Random misfires may occur if the signal is intermittent. Check engine light illuminates with P0335 stored.
Common Causes
Sensor failure from heat exposure or internal electronics failure is common. Damaged or stretched timing chain affecting reluctor wheel position can cause signal issues. Wiring damage from engine heat or physical damage, connector corrosion, and air gap issues between sensor and reluctor are also possible causes.
Diagnostic Priority
If the engine won't start, verify the CKP signal is present during cranking using a scope or scanner. Check sensor resistance and wiring. Inspect the sensor tip for metallic debris attraction that could affect readings. Verify the timing chain hasn't jumped, affecting reluctor position.