1999 GMC Sonoma hard start

1999 GMC SONOMA
97,000 MILES • 4 CYL • 2WD • AUTOMATIC
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GUYONTHEMTA
  • MEMBER
  • 10 POSTS
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.
Sep 23, 2009 at 7:08 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 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
Sep 23, 2009 at 7:20 PM
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