1996 Chevy Blazer did tune up now engine seems to miss

1996 CHEVROLET BLAZER
235,000 MILES • 6 CYL • 4WD • AUTOMATIC
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DANIELHATMAN78
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I did a tune up on my blazer a few days ago and know the the engine almost sounds as if its missing. I did have the firing order wrong for a minute or to but after i fixed it the problem is still there. It's like its backfiring during acceration and theres a loop at idle.
Mar 19, 2009 at 7:55 AM
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2CARPRO JACK
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Need to find out which cylinder is missing.Start it cold and let it run for just a few minutes, use a water spray bottle on the exhaust ports to see which one is the coldest (water doesnt evaporate) and go from there.You may have cracked a spark plug
Mar 19, 2009 at 8:13 AM