2004 Chevrolet TrailBlazer "changed coil truck running rough" Questions

...changed, a bad or broken plug will also cause rough idle and slow acceleration? That code means cylinder 1 is misfiring. Looked up a lot but I haven fixed yet. Looks like either the plug or ignition ...

...coil pack and spark plug and changed out and no change, so bought new M.A.P sensor, again no change, still runs rough and missing, what could it be ? did you replace only one spark plug? that can ...

...TRAILBLAZER 4.2 LTR CHANGED PLUGS, COIL PACKS ARE GOOD, GOOD AIR FILTER, RUNS SMOOTH AT IDLE, BUT WHEN PUT INTO DRIVE RUNS ROUGH, AND STARTS TO STALL OUT HELP PLS Throttle body needs to be

...changed the coil pack and it is still running a little rough and the service engine light is still on Possibly the O2 Sensor or the Cam position sensor or the plug wires themselves. ok i can't advise ...

...running rough and the gas mileage has been really bad lately Sounds like the engine is not firing on all cylinders. Check the spark polugs and cables. I have change the spark plugs the fuel injectors ...

...changed the spark plug and coil pack but still running very rough. I had the codes cleared and will check them again tomorrow. If I get the same codes what could the issues be? I'm hoping for a ...

multiple misfire is wat scanner says but changed all plugs and boots but still runs rough what could be the problem coils maybe?

I changed spark plugs on my 2004 trailblazer but now it runs rough maybe missing one. Could the boots be bad did you gap the spark plugs? Check all the boots and grease them with coil boot grease!!

...coil insert that is causing your problem. We changed ours and the thing is running fine now. ebay it, unless you have between 50-100 dollars to waste. Ours cost 25 dollars on eBay. Ours was a

running under load both o2 sensors changed with new plugs. I think the trouble light was on too long and sum how killed the converter did you check the coils and plug boots when you replaced the plugs