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2002 GMC Sonoma Hard starting in the Morning

Tiny
GUITAR54
  • MEMBER
  • 2002 GMC SONOMA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 27,000 MILES
Fuel pressure is around 50-55 with key on engine off. Spark is good. Recent tune up. Fuel filter is clear. No water or other in fuel. Scanned and found no codes. ETC operating properly. Runs good once started and is easy to start the rest of the day.
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Friday, October 30th, 2009 AT 11:50 AM

1 Reply

Tiny
JEEPFAN
  • MECHANIC
  • 135 POSTS
You may have a faulty check valve or fuel pressure regulator if theres a schrader valve on the fuel line before u try to start it in the morning see if theres pressure on the system if not somethings allowing the system to bleed down if it fuel injected an injector may be slowly leaking down
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Tuesday, November 3rd, 2009 AT 8:10 PM

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