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Fuel problems key on not running is 43 psi?

Tiny
JOHN SWARTZ
  • MEMBER
  • 1994 CHEVROLET CAPRICE
  • 5.7L
  • V8
  • RWD
  • AUTOMATIC
  • 132,594 MILES
Car has a lt1. Fuel pressure, with key on not running is 43 psi. Holds for a few seconds then drops to zero. Car will start and run with a shot of ether and will start after. What could be the problem?
Sunday, January 18th, 2015 AT 8:20 AM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check for leaking injectors/fittings if not that replace fuel pressure regulator.
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Sunday, January 18th, 2015 AT 10:52 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
Yep, the fuel pressure regulator might be leaking internally, I would remove the vacuum line to see if fuel is present and if so replace the regulator. Here is the location. Check out the images (below). Let us know how it goes
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Thursday, October 17th, 2024 AT 6:21 PM

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