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1999 GMC Sierra engine problem

Tiny
OMAR_ES_CANTU
  • MEMBER
  • 1999 GMC SIERRA
  • V8
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
My truck will start up fine but when I press the accelerator it shuts off. Sometimes it just hessitates and runs but it shakes and just shuts off. I tried driving it and as I was driving I lost all power and it just shuts off. I used a diognostic tester and changed alll the sensors shown. I drove my truck threw water when it began to start messing up. I did not have wheel wells. Service engine says my truck is runing lean.
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Friday, February 5th, 2010 AT 10:06 AM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hi, how long since a tune-up? Use a gage and check fuel pressure. What were the actual code numbers? Any sensor code, if there is a problem on the wiring circuit, replacing the sensor won't fix it.
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Friday, February 5th, 2010 AT 11:14 AM

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