Question about 1999 GMC Sierra
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Posted on Jan 02, 2017
I would check the fuel lines themselves and make sure there is no blockage. If not you might want to check your fuel injectors and see if they need to be replaced. also make sure you didnt install fuel filter backwards.
Posted on Nov 20, 2008
if before you start if you hold the gas pedal just a bit does it start faster if it does its our idle air control valve that defective (iac) let me now pierre
Posted on Jan 25, 2009
the fuel pump could actually be malfunctioning. and the reason that you are able to restart and drive again is because when you turn the key on it is allowing the fuel pump to pressureize your system. but while the fuel pump is continuasly running it is loosing the fuel pressure. this is common on the cheap fuel pumps. i am not sure about were you got the fuel pump from but in all of my experiances with this problem i find that the fuel pumps have been boughten at a napa store.
i hope this helps you out.
and you could attach a fuel pressure gauge on to the fuel rail and start the car and watch the pressure to see if it is droping.
Posted on May 22, 2009
maybe your iac valve is not working? it takes place of a choke or temp sender to computer could be bad which controls t I.A.C. known as the idle control valve,do you have any codes?
Posted on Sep 01, 2009
if no codes yet check and clean egr valve ,pcv valve,air filter and/ fuel pump and pressure regulator may b dropping under load
Posted on Oct 27, 2009
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