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rough idle acceleration

  1. Rough Idle even after major tune-up

    Hi, I am new to this forum and I would like to request for your assistance. I have a 2005 Chevy Trailblazer 6cyl, 4.2, 2WD, LT that is idling rough even after replacing: -spark plugs(ac delco) -air filter -engine varialble valve selenoid -camshaft -crankshaft -replaced 2 bad coils -clean...
  2. [SOLVED] 2006 TB Check engine: misfire cyl 1???

    OEM Issues
    I was taking my girlfriend out for our anniversary (starting good huh?) when I fire up my 06 TB and it started sputtering and jerking in idle. Issues were similar while Oscar Mike .Tried running through last tank of gas then filled up with "89" to see if the quality of fuel was a problem but...
  3. Rough acceleration at low speeds

    OEM Issues
    We have an 03 Envoy with 70000 miles. We've started noticing a few things: 1. On initial engine start-up, the fan rattles lightly (the noise goes away as the car moves beyond 15 mph). Once the engine's warmed up, the rattling seems to be gone even at idle. 2. On light acceleration from a...