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Fuel Rail Pressure Relief Valve leaking, how do I fix it?

Tiny
INTOSILENCE1
  • MEMBER
  • 2007 CHEVROLET UPLANDER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 177,000 MILES
After I checked the fuel pressure, the valve now leaks fairly badly, causing a slow startup and the cabin to smell like gas. How do I fix it?
Sunday, March 19th, 2023 AT 5:07 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,642 POSTS
It should be like a tire valve core and changed with the same tool. You can get a valve core tool from amazon. Check out this link:

https://amzn.to/403oX0e

Please let us know if you need anything else to get the problem fixed.
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Monday, March 20th, 2023 AT 1:19 PM
Tiny
INTOSILENCE1
  • MEMBER
  • 79 POSTS
Would I be able to use a regular tire valve core? Or does it have to be a specific part? On Rockauto there is a part called Fuel Pressure Relief Valve for around $20.00 but it looks exactly like a tire valve core. But I read somewhere that the seal on the tire valve core does not withstand fuel as well as the specific part, so it would fail rather quickly and start leaking again.
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Monday, March 20th, 2023 AT 1:37 PM
Tiny
KEN L
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  • 47,642 POSTS
That is correct, it needs to be for the fuel rail, I believe the local auto parts store have them.
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Tuesday, March 21st, 2023 AT 11:28 AM

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