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Fuel pressure regulator installation issue

Tiny
BRETTKRISSYANDBOYS MOLTER
  • MEMBER
  • 2000 ACURA TL
  • 220,000 MILES
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
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Saturday, December 15th, 2018 AT 4:41 PM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
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
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Saturday, December 15th, 2018 AT 5:54 PM
Tiny
BRETTKRISSYANDBOYS MOLTER
  • MEMBER
  • 3 POSTS
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?
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Saturday, December 15th, 2018 AT 7:40 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
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
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Saturday, December 15th, 2018 AT 7:47 PM
Tiny
BRETTKRISSYANDBOYS MOLTER
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  • 3 POSTS
Great, thanks so much.
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Saturday, December 15th, 2018 AT 8:03 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Always glad to help.

Roy
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Saturday, December 15th, 2018 AT 8:06 PM

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