hard start when cold or engine sits?

2001 CHEVROLET S-10
155,585 MILES • 4.3L • 6 CYL • 4WD • AUTOMATIC
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CAR GUY 15
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  • 1 POST
I have a hard start when cold or engine sits for more than 4 hours, blinking check engine light at highway speeds only, hesitation most of the time, a finicky fuel gauge, and a computer that will randomly reset itself every once and a while.
Jan 18, 2015 at 8:31 AM
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HMAC300
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scan for codes and check fuel pressure with a gauge. auto parts rent it.
Jan 18, 2015 at 10:46 AM
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STRAILER
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I agree with HMAC300, it sounds like you have a weak fuel pump. Here is how to check the pressure guide.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

the fuel pressure should be between 48 and 52 psi. HEre is how to change the pump out which is a common failure with these trucks. Check out the images (below). Please let us know what happens.
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Oct 17, 2024 at 6:24 PM
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