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1999 GMC Sonoma hard start

Tiny
GUYONTHEMTA
  • MEMBER
  • 1999 GMC SONOMA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 97,000 MILES
Hi there I have a sonoma with a 2.2l in it and when its been run up to temp and then sits for a little while it is hard to start it takes a few seconds until it starts ok. I replaced the fuel pressure regulator, plugs, wires, new intake gasket, the fuel pump is working fine, replaced the engine coolant temp sensor, but just cant figure it out.
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Wednesday, September 23rd, 2009 AT 7:08 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi there guyonthemta and TY for the donation

Could be low fuel pressure -check the fuel pressure with a fuel pressure gauge designed for your system if its within specs-check and test the fuel pump relay and fuel pump and oil pressure sending unit
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Wednesday, September 23rd, 2009 AT 7:20 PM

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