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Re: School Bus Lacks Power - OLD DIESEL HELP
Posted to HD/Fleet Forum on 7/2/2019

Wow, had to climb in the way back machine.(But didn't have to use the booster button) You have a 6.9L aka THE very first power stroke. Ford I believe called it an IDI, for Indirect Diesel Injection. Rip snorten 165HP right out of the box. They use a Stanadyne ... Login to read more.