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  1. 99-03 7.3L Powerstroke Problems
    02 Ford f250 7.3 starts up, idles fine for a few minutes, then the RPM drops to around 500 then goes up to 1100 and keeps bouncing up and down for a little. Then it'll idle fine and then RPMs fluctuate again. It'll do this over and over until the temperature hits the the bottom line of the guage...
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