2000 Chevy Silverado 4.8

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December 1st, 2022, 3:32 PM

Daveys69

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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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December 3rd, 2022, 5:45 AM

oilcanhenry

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Quote:

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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December 3rd, 2022, 7:54 AM

Daveys69

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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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oilcanhenry (December 13th, 2022)