1999 Chevrolet Suburban fuel leaking

1999 CHEVROLET SUBURBAN
193,654 MILES
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MR GRUMPS
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  • 4 POSTS
My 99 suburban w 5.7liter engine has fuel leaking at the fuel rail. It leaks continuously from the valve port on top. Is this valve stem replaceable or do I have to purchase complete fuel rail? If replaceable, where can I purchase and what's the correct term or name for this part?
Aug 18, 2013 at 11:28 AM
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JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
If that is a hex fitting, you should be able to screw it out. Use proper wrench or socket and be careful with the threads. If the fuel rail is aluminum and the valve doesn't come loose easily, I worry about the threads. If you screw up those threads, good luck getting it to seal.

If we're talking about the same thing, I call it a Schrader valve. Some parts books call it a fuel rail pressure relief valve.
Aug 18, 2013 at 2:48 PM
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