I was just wondering has anybody every had problems when you come to a light and ur car stumbles and sometime it wont.. when you take off sometimes you car kinda jerk then as you start to driveing picking up speed it bucks a lil then it will go away but when you come to a lite or in line it stumbles might or might not cut off
Could be any number of different thing's . Have thrity years as automotive technician . Started in 1984 at first GM dealership - chevy . Dirty throttle plate , IAC air passages- probably not - wouldn't do it one time then not the next . TPS - throttle postion sensor - maybe .Sticking EGR valve Taking your vehicle to a qualified repair shop that has the proper diagnostic equipment an knowledge . Testing an not guessing is the way to a proper fix.
007 Idle Speed Problems Scan Data for Idle
SOURCE: 1997 chevy 2500 4x4 stumbles
Fuel pump is most likely the cause. Probably just barely making the required pressure to start. Needs to maintain 60-66 psi while cranking to start.
SOURCE: 2003 Expedition jerking/cutting out.
Had same problem: cutting out at low rpm, jerking, a huge clunk or shudder at higher speed (like transmission was going out), and rough idle. All these symptoms were intermittent.
CHECK THE FUEL FILTER!! Changed the fuel filter and thing runs fine!!
PS mine 2003 expedition has 105k
SOURCE: hard start when air temp is cold, backfires when warm
Try this, remove (MAF) Mas Air Flow sensor,(be sure key is OFF) so you don't set a trouble code when disconecting wire conector, with some throttle body/air intake cleaner from the outlet side of MAF, spray the sensor clean, let dry, reassemble.Remove snorkle from throttle body, and with a old tooth brush, clean throttle body& plate with cleaner, may take a couple of cans if throttle is badly 'coked' up. Hope this helps.
SOURCE: Stumbles, picks up stumbles and sometimes dies out
700 is transmission control system malfunction. For now I'd concentrate on 108 which is M.A.P. sensor . Likely needs to be replaced but try cleaning connection at it first. Possibility that the transmission code, is an old one, or it's been tripped somehow by other problem, so unless it's experiencing shifting problems, I wouldn't get too worried about it right now. Once you've cleaned, or replaced MAP sensor, disconnect battery for a minute or so, re-attach, & try it and see how it works. Keep me posted.
SOURCE: Chevy tahoe shuts off when driving
replace fuel pump relay. check all fuses to ignition and pcm .make sure they are not loose. check coil wires make sure they not loose.look at battery if you have the ac delco seal battery make sure green eye still there .if its black have battery check out.
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