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RE: After warm up engine sluggish backfires badly...........
Bullvard said 2010-05-14 02:39
I finally solved the backfire problem. First of all I tried the seafoam, it helped a little bit, the culprit was the spark plugs, it did not looked real bad, but enough to do some damage on my gas mileage. I went from 30 miles per gallon on the bad plugs to 48 per gallon on new plugs, before my last bar started flashing I had 150 miles exact. I´m sure I should get another 20 on the remaining half gallon or so, making it 170 miles total. Anyways, I\