Question about 1999 GMC Sonoma

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2003 gmc sonoma will turn over but not start

The truck was running fine two days ago, I had a day off of work so I did not drive it for about 24 hours. When I tried to start it, the truck would turn over but would not start. I changed the cap and rotor, put HEET in the gas tank and still nothing. Thinking it may be flooded, I pulled out a fuse labled fuel pump and tried to start it hopeful that it would dry out. Still nothing after I replaced the fuse. Can anyone offer a suggestion?

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  • merlj Dec 30, 2008

    My 1999 GMC Sonoma starts pretty easily normally but it sat for 2 days and when I tried starting it the next morning it just turned over normally but would not start. I have over 1/4 tank of gas but added some "heet" and fuel injector cleaner at the advice of auto parts store worker. Still nothing. We checked pressure of fuel rail for injectors and fuel shot out. We pulled one plug and it smelled slightly gassy but not really wet. I grounded the plug to engine block as ignition key was turned and got spark. Again at the advice of auto store worker, I we pulled the fuel pump fuse and cranked engine hoping to dry plugs if flooded. Still nothing. We let it sit overnight and tried again the next morning, first with the fuel pump fuse out. We put the fuse back in and still nothing but this time really smells gassy. Can someone offer any suggestions??

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I've got the same problem. how did u fix it thanks

Posted on Mar 21, 2009

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Fuel pump could be pushing fuel but not enough

Posted on Jan 30, 2009

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