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00 Oldsmobile Bravada

Tiny
BAYIRDMOTORS
  • MEMBER
  • 2000 OLDSMOBILE BRAVADA
  • AWD
00 oldsmobile bravada hard to start, has a nervous idle? We checked the fuel pressure, when you turn the key on it builds to close to 60. When the pump kicks off(key still on) the pressure will drop gradually to around 5psi. Is it supposed to do this? I was thinking that once it built the pressure needed to start/run it should hold the pressure. We were thinkin fuel pressure regulator but not sure. Could it be the fuel injector/spider assembly? When it does start there is not any black smoke out the tailpipe like its flooded which leads me to believe that its not the injectors.
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Monday, January 17th, 2011 AT 7:23 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be the injector/s, fuel pressure regulator, fuel pump check valve leaking-it shouldn't drop that fast-the pressure is leaking somewhere
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Monday, January 17th, 2011 AT 7:28 PM
Tiny
BAYIRDMOTORS
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Any test you can suggest to point me in the right direction?
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Monday, January 17th, 2011 AT 7:29 PM
Tiny
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Is the check valve in the tank?
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Monday, January 17th, 2011 AT 7:31 PM

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