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.
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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