Questions & Answers for: GMC rough start

...start and rough idle but dies when either the brakes are applied or the lights are turned on! Was driving along and the truck died instantly, but still had dash lights. thought it might be fuel pump ...

...start I have a 2001 Jimmy that started running rough out of the blue. I thought maybe it had water in the gas tank and put some heet in it as well as some fuel injector cleaner. It still continued to ...

...rough after you start it.I't start good , judt runs rough after starting.I've been tolds it's the spider injector under the manifold.Any idea's as to why it idle's so rough? w/o much more info it ...

...is minor compared to how rough it idles at start up. Really smell the gas and exhust until it warms up if u have a damaged plug it can be running on 1 less cylinder ,it will idle very rough,change

...start or starts rough on 2002 Yukon XL 6L won't start or starts rough and then runs on first crank after sitting a while. Starts perfectly on second crank and runs perfect. Have the fuel pressure ...

...rough at idle also new fuel regulator .motor will not start now, and kicks back on starter. will the cpi unit cause it not to run or is it just the cause of rough idle? I AM LOOKING AT TIMING ISSUES ...

...start running rough. I changed the spark plugs, checked the coil packs and replaced the fuel pumpand fuel filter. Still no change....Any suggestions? ROUGH IDLING CAN BE CAUSE BY MANY THINGS.I AM ...

car engine interment rough idle This is very interment. Starts good and runs good to begin and often after engine warms then rough idle, this is not evident at normal driving speeds. The rough idle is

...will then start right back up with rough idel , go and drive some thing??? when in park and ran at 1500 RPM smooth out runs good. i have seen many strange things happen with the distrib cabs on ...

...GMC Sonoma 4.3 LV6 AT. Service engine soon started flashing while driving. Truck started to run rough, light stayed on (but stopped flashing) at idle. Stalled at light. Started back up and ran ...