2002 GMC Sonoma 2002 Sonoma wont start

2002 GMC SONOMA
11,700 MILES • 6 CYL • 4WD • AUTOMATIC
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BSTAND143
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I have a 2002 sonoma that quit while driving. I have replaced the fuel pump, fuel pressure regulator, and fuel filter. The fuel pressure is 10-15 psi with the key on and engine off. I am at my whits end. I did read your post from last october where another person had a similar issue and he was told to check the fuel pump ground. where will i find the fuel pump ground???? any other ideas you may have will be surely appreciated.

bstand143
Jan 15, 2010 at 11:30 AM
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RASMATAZ
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Your fuel pressure is way too low-shoud be 60-66psi
Jan 15, 2010 at 3:51 PM
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BSTAND143
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I realize that it is way too low. I am trying to determine why it is too low. any ideas on what to check. The pump is new, the fuel filter is new, the fuel pressure regulator is new.
Jan 15, 2010 at 3:56 PM
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RASMATAZ
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Is this a vortec CPI fuel system-if so could be the nut kit /pressure regulator leaking also the fuel pump check valve-
Jan 15, 2010 at 4:00 PM
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BSTAND143
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It is a 4.3 fuel injected engine. I just replaced the Fuel Pump, Fuel pressure regulator, and the fuel filter.... with no results..... it still doesn't start
Jan 15, 2010 at 4:51 PM
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RASMATAZ
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Are you getting spark? If so you need to open it back up and investigate the regulator and nut kit-your're leaking pressure=somewhere
Jan 15, 2010 at 5:20 PM
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