93 deville burns alot of fuel, like a gallon a mile; no leaks in fuel line. Any suggestions?

asked by

on

16 Jun, 2015

  • 69%
    Solved this issue
  • 102min
    Time to fix
  • 72%
    Recommend to DIY
Need a faster answer?
A ruptured diaphragm in the fuel pressure regulator will let extra gas enter the engine through the vacuum line to the regulator. Pull off the regulator vacuum line. Any evidence of gas? Let the engine idle a couple of minutes with the vacuum line off. If any gas starts coming out of the vacuum line nipple on the regulator, then that was the problem. Replace the fuel pressure regulator.
SHARE YOUR EXPERIENCE
  • Were you able to resolve it?
    Yes No
    Awesome !
    Ok
  • How long did it take to fix?
    Good to know
  • Is it better to DIY or Repair?
    DIY Repair
    Great
    Got it
Instant Repair Help
over the Phone or Video