Question about 1996 Chevrolet Blazer

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1996 s10 blazer misfire cylinder1

I keep getting a misfire on cylinder1 and i have changed the plugs wires cap and rotor and even the fuel injector. this problem comes and goes if you step on the gas hard to get out in traffic or whatever it will usually cause it to develop the misfire.

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  • craig14me912 May 11, 2010

    this truck was put onto a different scanner and it shows cylinders 1 3 5 are missfireing with cylinder 1 being the worst.

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I delt with this once changed the computer and that was it hope this helps

Posted on Mar 03, 2009

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2003 Chevy Trail Blazer misfire problem


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Code p0300 coming up random cylinder misfire already changed wires had cylinder 5 misfire .should i replace coil


If you already replaced the wires, I would suggest replacing the plugs, distributor cap and rotor. They are also very important parts of the spark. Fuel injector problems can also cause misfires.

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I currently own a 99 Blazer, 6cyl 4.3L, 4 door, auto trans. My check engine light is on, and the local shops cant pinpoint the problem, except that cyl 2, 4 and 6 are randomly misfiring. I have changed...


If you not running the OEM cap and rotor that's where your problem may be. The after market cap and rotor is not as heavy as the OEM and when the two screws that hold down the cap to the distributor is torqued to high,it warps the cap and that's where your problem may be. Remove the cap and inspect the inside and look for abnormal arching, you may want to replace the cap and rotor again. The other thing to is the breather screen in the distributor is known to get plugged up with dirty creating condensation which promote corrosion in the distributor there was a service bulletin from GM to service the screen when working on the distributor or during tune up's. Good luck and hope this helps. Keep me posted, be glad to help.

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