1995 GMC Jimmy Replaced EGR Valve

Tiny
CFERRY1
  • MEMBER
  • 1995 GMC JIMMY
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 216,200 MILES
I have just replaced the EGR Valve. Since the Diag
Codes indicated a EGR failure. The "Service Engine Soon" light has now disappeared. My question is that after installing the new EGR Valve, I hear a loud vacuum (air hissing ) noise coming from near the EGR valve. I do not recall this loud Air Noise from the Engine compartment. This may be normal?
Could you provide some suggestions?
Thanks
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Friday, January 9th, 2009 AT 6:29 PM

1 Reply

Tiny
BLUELIGHTNIN6
  • EXPERT
Hello
Thanks for the donation.

No, this is not normal.
It sounds like you have knocked a vacuum line loose. The EGR valve operates directly with the manifold vacuum so I suggest checking the hoses around the installation area of the EGR valve. Ensure all hoses are tight and free of any damage that will cause leaks.

Post your results and I will follow up.

Hope this helps.
Thanks for using 2carpros. Com!
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Friday, January 9th, 2009 AT 6:48 PM

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