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'93 STS stalling

  #1  
Old 12-19-2007, 06:01 PM
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Join Date: Jun 2005
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Default '93 STS stalling

Hi Guys,

It's been awhile, everything good up till now. My STS started dying on right hand turns, then graduated up to dying going down the road while driving. I had a 95 deville that would do it, it turned out to be the fuel pump in the tank. I have replaced the fuel filter on the frame rail. It still dies. When I start it up, it will idle for a few seconds, then die on it's own. I managed to get it home by running it at WOT nearly. It will run at WOT, but I can't drive it like on a drag strip everywhere. When it starts up, I can touch the trottle, and it stalls, when I back off the trottle, it comes back to life, then dies. I replaced the TPS awhile back. It does not pop any codes at this point. It pop a PO95, which is for the engine stall. Other than that, has no codes. Does anyone believe the problem is the fuel pump? I will check back later for some ideas, have to go to work for now. Thank you in advance for your assistance.
 
  #2  
Old 12-19-2007, 07:26 PM
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Join Date: Oct 2007
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Posts: 3,160
Default RE: '93 STS stalling

Check fuel pressure should stay over 28psi. engine running.Low fuel pressure very possible.
 
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