💪 ACDelco Professional 217-3299 Fuel Injection Pressure Regulator: Optimized Performance for Optimal Fuel Efficiency Review

Very easy install - just pay attention to the orientation of the latches - different diameters on different sides. I didn't use a flat locking ring, I don't know why it was included.

Fit was pretty snug but worked like a champ with no noise. Fixed a rough start issue on my 2002 Silverado. Just make sure you remove the old small o-ring before installation.

It works but the fuel pressure is reading lower than before and it makes a very audible vibrating noise that almost sounds like metal scraping. It can be heard at a distance of several meters from the car.

My 2004 Trailblazer lost fuel and had to turn the key 3 times before starting, I replaced the fuel pressure regulator and it is factory, I just put factory on my engine and now it works great .

Very easy installation. Find a video on YouTube. I had an issue with my 02 Avalanche 5.3L Vortec where it started fine when cold but wouldn't start when warm after shutting down without pumping gas. I also have a remote start and if it wasn't for the cold he wouldn't start the car, he would keep trying. This fixed both issues. Starts immediately in heat or cold.