Fuel pressure regulator installation issue

2000 ACURA TL
220,000 MILES
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BRETTKRISSYANDBOYS MOLTER
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Just installed a new fuel pressure regulator, and when I started it up, I notice a real slight leak where the regulator fits into the fuel rail. Is this normal immediately after installation? Am I going to need to remove it again? It came with metal and rubber washer and I tightened it well.

Thanks,

Brett
Dec 15, 2018 at 4:41 PM
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ASEMASTER6371
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Good evening,

Yes, you will need to remove it again. this time use some lube on the o-rings when installing. check them first to be sure there is no damage.

No, leaking is not normal at all.

Roy
Dec 15, 2018 at 5:54 PM
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BRETTKRISSYANDBOYS MOLTER
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Thanks. I actually put it back on and got no leak this time. I am trying to address the issue my car has with having a hard time starting when the engine is warm. If I have been driving for a while, turn off the engine and get back in the car not long after, the car will start but it will crank about three or four times. When car engine is cold, fires up right away. Most sources tell me there is either a fuel leak, air in the fuel system, bad fuel pump, or bad fuel pressure regulator. I will see if the new fuel pump regulator fixes the issue. What do you suggest?
Dec 15, 2018 at 7:40 PM
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ASEMASTER6371
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I would start by checking the actual fuel pressure when it is hot to see if it is the pump.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

There is a very good chance it is a failed pump.

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

Roy
Dec 15, 2018 at 7:47 PM
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BRETTKRISSYANDBOYS MOLTER
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Great, thanks so much.
Dec 15, 2018 at 8:03 PM
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ASEMASTER6371
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You are welcome.

Always glad to help.

Roy
Dec 15, 2018 at 8:06 PM