K5 Blazer 1969-1994
While this model ended its run, it is not uncommon to see them on the road or off, years after production end.
Platform: Truck, GMT 400

CYLINDER NO. 6 MISFIRE ?

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Old Feb 21, 2008 | 1:40 PM
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sjp240's Avatar
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Default CYLINDER NO. 6 MISFIRE ?

I have a 1997 Chevy Blazer (4.3L),I just recently changed my oil and did a brake job on it. WhenI went to start it up after,it was stumbling and running really rough and getting terrible gas mileage. The check engine light was flashing soI read the codes and it said cylinder6 misfire. SoIchecked the plug and it has spark and the wire has a flow or at leastI think it does. I checkedall theconnections and the connectionto the cap and they were fine with no corrosion. About two months ago I changed every single plug, wire, oxygen sensor, distributor cap, rotorand a year ago I got a new catalytic converter. I just cant think of what it could be unless maybe it is a fuel injector (SFI). Thanks for your help!
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Old Feb 21, 2008 | 9:04 PM
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Default RE: CYLINDER NO. 6 MISFIRE ?

Its probably the injector there is a bulletin to upgrade them to multiport injectors.
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Old Feb 23, 2008 | 1:23 PM
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Default RE: CYLINDER NO. 6 MISFIRE ?

Thanks!
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