Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
The cost to diagnose the P1433 GMC code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
With the engine running, the Powertrain Control Module (PCM) detects that the Fuel Level sensor signal was more than 2.90v, condition met for over 2 minutes.
Need more information on how to fix the P1433 GMC code? Get Access to Factory Service Manuals
Get the P1433 GMC code diagnosed by a professional: Find a repair shop in your area