GMC Sierra problem. Two sets on mine already. Coding is for misfires. Also, possible to unplug your MAS [mass air sensor] which will keep the 'check engine' light on at all times but it will no longer
engine light on my 2005 gmc 1/2 ton pickup came on. code po 449 came up on the computer check,any ideal's? How is it Running? Rough, Smooth, Missing, ETC.?
...GMC Sierra- runs rough then stalls when 1998 GMC Sierra with 5.7 vortec. runs rough then stalls when stepping on accelerator. Have put on new fuel pump, new fuel pressure regulator, new fuel pump ...
2005 GMC Sierra 1500 emmisons light came on and engine runs rough when at idle but runs fine when moving There are many reasons that could cause this. Take the vehicle to advance auto or autozone and ...
...runs rough, while running if the MAP sensor 1991 GMC 1500; V-8: Engine runs rough, while running if the MAP sensor is disconnected the engin shuts off. then map is working, have you tried tune
Question about 1990 Sierra
gmc sierra 4.7 is loading up on gas and running rough ive replaced the map sensor and the control module didnt help what should i do next Stop throwing parts at it.Is it a 5.7 eight cylinder ? I
GMC Sierra missing wire was replaced but problem continues Idling rough feel sluggish engine light on What code are in the computer?
Question about 1993 Sierra K1500
...gmc sierra 4wd runs rough after engine warms up.At stop lights she will stall out if i dont keep foot on break and give a little gas. any suggestions ? was running fine one night she broke down I had ...
...gmc Sierra V8 auto, has a rough idle. Changed both front sensors and all spark plugs and it is still idling rough, in park or in gear, it runs good if your driving. What should I try next? Faulty EGR ...
Question about 1990 Sierra
...GMC Sierra ST with 1992 5.7 t.b.i. Starts and idles rough, then bogs and stalls when foot into it. New TPS, MAP, IAC, fuel pump, EGR valve and solenoid, temperature control sensor. Shows no codes but ...
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