Question about 1988 Chevrolet Silverado 2500

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1988 chevy pickup,vehicle repair

Stalls and sometimes won't start at all.Surges really bad when driving.Acts like it's getting to much fuel.Had the knock sensor,esc sensor,and lean exhaust come up for codes and i have replaced them.Now it's not coding out at all and it still won't run.What do i do?

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  • jimjenelle Jan 26, 2009

    1988 350 silverado

    Idles fine but when I step on wont go more than about 40, uses gas like crazy?

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  • 33 Answers

Check the fuel pressure regulator

Posted on Jul 19, 2008

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Engine starts but when put into drive surges ahead and stalls. Also has bad exhaust smell like the mix is too rich. When the car is started it will sometimes reveve up real high.


Sounds like you have a bad fuel pressure regulator.Pull the vacuum hose off the regulator and if any fuel runs out of it then the regulator is bad .You will need to replace it.Also check for fuel in the map sensor which is another sign that the fuel regulator is bad.If they check out ok then replace the coolant temperture sensor.

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