1998 Chevy Silverado Fuel Pressure

Tiny
BROBBINS100
  • MEMBER
  • 1998 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 162,000 MILES
What Could Cause Low Fuel Pressure besides a bad fuel pump or low voltage. I only have thirty pounds at idle and twenty pounds at fuel throttle.
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Friday, July 17th, 2009 AT 1:14 PM

4 Replies

Tiny
DOCFIXIT
  • EXPERT
Maybe faulty pressure regulator. On fuel rail little silver can with hose. Remove hose pressure should rise. If not then pump faulty.
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Friday, July 17th, 2009 AT 1:28 PM
Tiny
BROBBINS100
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Ok. I thought the fuel pressure regulator was on the side of the spider injectors? Also what is normal operating pressure for it? Shouldnt it not drop less than fourty no more then fifty?
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Friday, July 17th, 2009 AT 1:31 PM
Tiny
DOCFIXIT
  • EXPERT
60-66 psi engine is it 5.0L?
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Friday, July 17th, 2009 AT 3:08 PM
Tiny
BROBBINS100
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It Is A 5.7L.
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Saturday, July 18th, 2009 AT 4:49 PM

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