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AZTechBrian
AZTechBrian, ASE Certified Technician
Category: Chevy
Satisfied Customers: 706
Experience:  Owner
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I have a 1997 Chevy Tahoe thats dumping to much fuel in all

Customer Question

I have a 1997 Chevy Tahoe thats dumping to much fuel in all 8 cylinders at the same time. I've replaced the distributor, EGR valve tem. sensor, and its burnted up both cats.
Submitted: 1 year ago.
Category: Chevy
Expert:  AZTechBrian replied 1 year ago.

Hello. Have you checked into the fuel pressure regulator? A bad fuel pressure regulator will cause a rich condition

Expert:  AZTechBrian replied 1 year ago.

Please remove the vacuum line on the fuel pressure regulator and see if it is damp with fuel. Let me know what you find. If you need a picture of it let me know and I will gladly provide one.

Expert:  AZTechBrian replied 1 year ago.

Here is a diagram which shows it's location.

https://www.dropbox.com/s/kds9xv21uo6u4d9/tahoe%20FPR.jpg?dl=0

Expert:  AZTechBrian replied 1 year ago.

HI. I am just wondering if you checked out the fuel pressure regulator and what the outcome was?