HARD TO START AFTER SITTING FOR A DAY

  • Tiny
  • birdred
  • 2000 GMC Sierra
  • 162,000 miles

My truck is hard to start after sitting for a day and it runs rough after given gas until it warms up then it is fine. I had it smoged and cleaned the throttle body and map sensor and had it tuned up with rotor plugs wires from oreillys. No codes are showing up so everyone is guessing. What else would it be? It stalled out when driving when it is cold and chugs like it is getting no gas.

Sunday, April 8th, 2012 AT 3:47 PM

1 Answer

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

Have the fuel pressure tested for proper pressure. It sounds from your description that it is failing. Look for 58 lbs or better.

Roy

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Sunday, April 8th, 2012 AT 3:49 PM

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