Fuel pressure regulator problem GM

I had a P0300 code on my 2003 sierra 1500 SLE 5.3 for the last month or so. almost all the videos I watched where from guys trying to promote their channel and helping stiffs like me was secondary. I thought it was suppose to be the other way around. I had thrown in the towel and made an appointment to take it to the dealership for service in a couple of days. . I came across your channel this afternoon and thought I'd check the fuel pressure regulator. once I pulled the vacuum hose off, fuel came dripping out. did the fix and didn't even break a sweat replacing the part under the Arizona heat. You just saved me a few hundred bucks. I did not find one video on a P0300 fix on you tube that suggested checking the fuel pressure regulator. Thank you brother.

For anyone viewing this video and hesitating dont this guy knows what the heck is going on with this problem. My truck had been to the dealer and multiple mechanics and nothing. It took about 40 minutes and it was done. I wish I lived by this guy I would make him my mechanic for the tough stuff and jobs I dont want to do.....Thanks again for this amazing tip.....

Great video, it fixed my 2002 Silverado 6.0L. I was having long cranking symptoms when engine was at running temperature, also the truck was running very rich, and had a rough idle. Saved me a lot of time diagnosing the issue. $70 part and a couple minutes to install.

Thanks for the video. My 2500 6.0L was displaying signs of loss of power loss off idle and gradually started to not idle at all. A new FPR seemed to have fixed it and I appreciate the ease of replacement that GM designed into the design. My 1990 Corvette needs the upper plenum removed and gaskets to do the same job. 15min vs 2 hrs. My AC Delco from the local ship was a bit more at about $100. Thanks again.

saved me a headache trying to figure out why it would not start right away. This video showed the exact problem with my 2003 Silverado. Thanks

Thank u so much for this video it really help a lot as soon as u show in the video that no fuel should be present I the fuel pressure regulator I went out and sure enough fuel was coming into the regulator replaced it and my truck runs like new God bless u for helping others

Having rough idle/stalling after my gas got really low. Hoping i didnt burn out the fuel pump. Going to test the fuel pressure first and go from there. Your videos are VERY informative and easy to understand, even for a chick with 3 traumatic brain injuries, lol

Thanks mate, you're a 'Fair Dinkum' legend! Had all sorts of mechanics paid to look at our Grand Am with no joy, I thought it was funny that fuel was going through the vacuum hose and you confirmed my suspicion. Never worked on fuel injection systems before, it's been a learning curve for this Aussie!

Thank you so much. I’ve been dealing with the hard start issues for over a year and you gave me the answer

Joe, thank you for posting this video. I have been having trouble with my 6.0L and this has solved it.

This is a really easy job to replace this regulator. My 2003 suburban needed a new regulator and I did it within 15 or 20 minutes. The regulator on the flex fuel system mine has is a little different than the one pictured here. The vacuum connection is on the end and not on the side like in this video. There is no screen either for the part I got. There's 2 blue O-rings and one black spacer. The spacer goes on the inside end of the regulator followed by the larger blue O-ring. The small blue ring goes inside the regulator housing and is easy to get out with a pick. Even though you relieve the pressure prior to starting the job through the Schrader valve, quite a bit of fuel still comes out when you remove the regulator so make sure you have a large cloth towel underneath it and only do this with the engine cold. Once you push the regulator in place and connect the clamp and vacuum hose cycle the ignition two to three times to bring up the fuel pressure and then start the engine. Very easy job. Thanks for the great video!

You're a very good teacher.

thank you for watching, glad to hear i helped. ive seen a lot of money thrown at these vehicles that wasnt needed

That's exactly what I do to turn on my Father truck again. I never knew this could be the problem. Thanks.

OK I dont know where to start but THANK YOU.... Guy this is the answer right here I stopped at the autobarn on the way home picked up the part about $70 not bad I thought. I came home a bit hesitant and then started hoping and praying that this was the answer and yes this quick fix KICKs AZZ. I have to say that I was kinda not sure if it would work but the engine turned over stronger than it ever has before, it also ran smoother than ever and to add all the best on top. CHECK ENGINE is OFF!!!!!

Are you talking about a diaphragm kit? A new fuel pressure regulator is about $170. The diaphragm kit is about $40. This is exactly the issue I've been having with my 1994 Sierra!!! Thank you!!!!

thanks for watching. glad i could help. once you get used to hpw they work fuel injection is a very easy system to work on. glad i could help

Thanks for the video. I had a problem with my 1999 Silverado starting hard after it warmed up. After replacing the fuel pressure regulator it starts right up. My regulator wasn't leaking fuel but apparently there is a spring inside of it that was sticking.....

Thank you very much it was very helpful the information that you gave me on a few pressure regulator

Your a life Saver Thanks..Much Blessings