barney91 Posted November 3, 2011 Author Report Share Posted November 3, 2011 Well before it started acting up it did I thought maybe it wasn't getting a good spark but it could be a clogged injector Tomorrow I'm going to take another look at everything and see what's up ill post what ever happends when I do the mfi swap because the kit inclueds new fuel pressure regulator and new injectors, real injectors not shitty poppets Quote Alpine 9884 RF T2 comp set up front The Epicenter 2x RF T10001bd 2x Sundown sa-15 t-line Big 3 Smd DD-1 Link to comment Share on other sites More sharing options...
teardrop Posted November 3, 2011 Report Share Posted November 3, 2011 sounds like thats what id do let us know what happens Quote Link to comment Share on other sites More sharing options...
barney91 Posted November 3, 2011 Author Report Share Posted November 3, 2011 Will do thanks for the help Quote Alpine 9884 RF T2 comp set up front The Epicenter 2x RF T10001bd 2x Sundown sa-15 t-line Big 3 Smd DD-1 Link to comment Share on other sites More sharing options...
teardrop Posted November 3, 2011 Report Share Posted November 3, 2011 any time Quote Link to comment Share on other sites More sharing options...
Loslam Posted November 4, 2011 Report Share Posted November 4, 2011 (edited) By bogging out and not starting, do you think it feels or sounds like it's getting too much gas to the point it's flooding? If so then that could be something as simple as a bad sensor somewhere, notorious on these vehicles...check your coolant temp sensor, O2 sensors and MAF sensor If they're bad it's telling the computer to richen or lean the hell out of your fuel which would explain your problems ex: bad coolant temp sensor saying it's -40 degrees -> tells pcm MOAR FUEL -> dies at idle Edited November 4, 2011 by Loslam Quote 1997 Chevrolet Silverado Extended Cab, 350 Vortec Things to come at some point... Build Log: http://www.stevemead...2200ds-133-ohm/ Link to comment Share on other sites More sharing options...
3Ltriste13 Posted November 4, 2011 Report Share Posted November 4, 2011 x2^^^^ ive seen this happen before the weirdest shit ever lol Quote YEEEEEEEEEEEEE Link to comment Share on other sites More sharing options...
teardrop Posted November 4, 2011 Report Share Posted November 4, 2011 By bogging out and not starting, do you think it feels or sounds like it's getting too much gas to the point it's flooding? If so then that could be something as simple as a bad sensor somewhere, notorious on these vehicles...check your coolant temp sensor, O2 sensors and MAF sensor If they're bad it's telling the computer to richen or lean the hell out of your fuel which would explain your problems ex: bad coolant temp sensor saying it's -40 degrees -> tells pcm MOAR FUEL -> dies at idle thats very true but these should also throw a check engine light but don"t allways Quote Link to comment Share on other sites More sharing options...
crispy_chick3n Posted November 5, 2011 Report Share Posted November 5, 2011 sounds like a fuel pump ballast resistor gone bad. most gmc trucks from about 95 up use high volume fuel pumps, but the high volume isnt needed all the time. so gm decided to put a resistor in line with the fuel pumps. these go bad all the time. they either give no resistance, which would cause the fuel pump to run at full speed all the time, of they give very high resistance, causing the truck to idle for a few seconds, and then when the pcm switches the circut to use the resistor, the truck dies. i would look into finding that resistor. unplug it and cross the two wires on the vehicle side, then try to start the truck. if the resistor was bad your truck should stay running as long as the two wires are crossed. if that is the case go buy a new resistor. best of luck. Quote This page is crispy_chick3n approved. © crispy_chick3n inc Link to comment Share on other sites More sharing options...
down2earth Posted November 5, 2011 Report Share Posted November 5, 2011 u mite have a bad ecu on bored computer i have a 95 tahoe one went bad on me was doing the same thing Quote my 1949 ford f-1 build log http://www.stevemead...running-boards/ my 1981 crew cab dually bagging and body dropping http://www.stevemeadedesigns.com/board/topic/132672-bagging-and-body-dropping-a-81-crew-cab-dually/page__st__100 Link to comment Share on other sites More sharing options...
teardrop Posted November 10, 2011 Report Share Posted November 10, 2011 you get it running? Quote Link to comment Share on other sites More sharing options...
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