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2000 Chevy Silverado 4.8

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Old Dec 1, 2022 | 3:32 PM
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Daveys69
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Default 2000 Chevy Silverado 4.8
Why does my truck rev up when I shift from park to any gear high enough to set a high idle code? I’ve replaced the intake gaskets, cleaned injectors but I still get code!
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Old Dec 3, 2022 | 5:45 AM
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oilcanhenry
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Originally Posted by Daveys69
Why does my truck rev up when I shift from park to any gear high enough to set a high idle code? I’ve replaced the intake gaskets, cleaned injectors but I still get code!
I'd check the fuel pressure were I you.
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Old Dec 3, 2022 | 7:54 AM
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I have and it’s 58lbs at idle! Thought that it was too low so I put in a new fuel pump and also a new fuel pressure regulator and it’s still at 58lbs! So I just figured that’s what it’s supposed to be!!!
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Old Dec 13, 2022 | 9:11 PM
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oilcanhenry
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Originally Posted by Daveys69
I have and it’s 58lbs at idle! Thought that it was too low so I put in a new fuel pump and also a new fuel pressure regulator and it’s still at 58lbs! So I just figured that’s what it’s supposed to be!!!
58 PSI is within the tolerances called for. 55-62 PSI.
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