Hi guys, I have a '99 F100 that sat for a little over a year with gas in it before I recently bought it. I changed the oil, thermostat, and water pump, siphoned the old gas and changed the 10 micron h20 separator filter, then filled with 89 octane and a can of seafoam. Took her out this morning, and she was running great at low and high rpms, but a little rough in the middle. I ran her for about 10 minutes at 4000 rpm and we were cruising along nicely when all of a sudden she bogged down & I stopped. From there she didn't want to go past about 1800 rpm, any higher and she would start to miss out pretty bad and act like she was going to stall.
So I know I should clean the carbs & replace the filter in the engine as first points of attack, but I'm worried about it and can't do anything until tomorrow. Does it sound more like a clogged filter, dirty carbs, all of the above, or something else? I'm really hopeful that it's not serious.
I should add that the engine still runs very smooth at idle, and up to about 1800 rpm, which makes me hopeful that I did not blow a piston or anything too serious. Am I being overly optimistic?
Any input is greatly appreciated.
So I know I should clean the carbs & replace the filter in the engine as first points of attack, but I'm worried about it and can't do anything until tomorrow. Does it sound more like a clogged filter, dirty carbs, all of the above, or something else? I'm really hopeful that it's not serious.
I should add that the engine still runs very smooth at idle, and up to about 1800 rpm, which makes me hopeful that I did not blow a piston or anything too serious. Am I being overly optimistic?
Any input is greatly appreciated.
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