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Power Strokes
94-97 Tech
Romping idle, "missing" under acceleration, low boost, poor mileage
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[QUOTE="trevdalocal, post: 1550175, member: 31493"] Follow up to this since I'm still having issues. Truck has some "good" PIS 250/200s, TE pump, new Ford CPS, Irate T4, Strictly Diesel efuel and regulated return, with a Hydra. It is a ZF5 truck. Just changed oil and the romping is back in a pretty serious way. On a hot start, once it catches and fires, the rpms are a little high, "hang" a tiny bit then come back down and romp. Idle fluctuates up and down a couple hundred RPM when engine is up to temp. When I let off the accelerator, the tach needle jumps a little, and you can feel the truck buck a little bit. Easily and clearly repeatable every time you let off the pedal. Other odd behavior I've noticed, on a moderate tune and a long hard pull in 4th, it felt like it hit a fuel cut, would've put me in the dashboard if I didn't have my seatbelt on. Any ideas? [/QUOTE]
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Power Strokes
94-97 Tech
Romping idle, "missing" under acceleration, low boost, poor mileage
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