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03-26-2025, 10:13 AM
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#1 |
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Registered User
Join Date: Dec 2011
Location: Boise, Idaho
Posts: 724
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how to read codes
Hello all,
Wife's burb,, 2002 2500, 6.0 4l80 It died yesterday,, 99% sure it is the fuel pump but before i pull the tank i want to confirm low pressure... Is there a way to cycle the key or some other combination to get the codes on the dash or a flashing sequence? I have been searching the net for 30 minutes now and get every forum/video except chevy for my gen.. I have an 89 v2500,, a little different Thanks in advance Last edited by chris989; 03-26-2025 at 10:21 AM. |
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03-26-2025, 11:25 AM
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#2 |
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Registered User
Join Date: Dec 2011
Location: Boise, Idaho
Posts: 724
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Re: how to read codes
I went ahead and just hooked up my pressure gauge at the rail,, I have 30PSI
i read i need 50+ is that accurate? Thank you |
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03-27-2025, 02:53 PM
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#3 | |
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Moderator
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 5,049
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Re: how to read codes
Quote:
30 is super low.
__________________
1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. |
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03-27-2025, 05:51 PM
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#4 |
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Registered User
Join Date: Dec 2011
Location: Boise, Idaho
Posts: 724
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Re: how to read codes
I installed a pump from NAPA yesterday,,, all better now
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