fritz1990
Dedicated Member
Posts: 6515

Age: 59
Loc: Kansas
Reg: 02-16-03
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03-30-21 09:43 PM - Post#2817162
I have a 2009 Silverado 1500 5.3. Been looking everywhere and cant find solid information on what fuel pressure should be. I have 62 psi KOEO and 46 psi idling. Having a start then almost dying condition on first start of the day.
Regards, Jeff
1998 K1500 6.5 Coal burner
1965 C10 with 498 BBC AFR Heads
1964 C10 Ran 348W for 6 years, now SBC.
Corvettes owned: '74 '77 '78 L82 Silver Anniversary, 2002 LS1, 2007 C6 Love this one!
Don't have a nervous come together!
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Shepherd
Frequent Contributor
Posts: 2233
Loc: Lake George, NY
Reg: 11-11-15
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03-31-21 12:13 PM - Post#2817208
In response to fritz1990
46 is too low.
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MarkV
Member
Posts: 32

Loc: Mt. Holly, NC
Reg: 07-25-03
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04-07-21 10:04 AM - Post#2817655
In response to fritz1990
I have a 2004 S-10 blazer with 4.3 and a 2007 Silverado with the 5.3. Both have 55 psi. I hade to replace the 4.3 pump last year, and the new pump has 55 psi also. Hope this helps.
Mark
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