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The fuel pressure regulator in the 2006 Buick Rendezvous is located at the end of the fuel line and connects to the car injectors. Its main responsibility is to ensure that the engine receives the proper amount of fuel for optimal performance. If you encounter issues with the fuel pressure regulator, there are several symptoms to look out for. The most common sign is the engine misfiring, although this can be caused by various factors and should be inspected by a professional. You may also observe a fuel leak if the line is damaged. Another potential red flag is black smoke emanating from the engine, indicating an excessive amount of fuel being sprayed, which poses a serious safety hazard.
In the 2006 Buick Rendezvous, you can find the fuel pressure regulator positioned at the end of the fuel rail that is linked to the injectors, where it redirects the fuel back into the vehicle.
I removed the throttle body, but I still can't locate it.