Engine Surging / Ittaratic idle / Studderring - Ford Powerstroke Diesel Forum
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Old 07-04-2013, 07:13 AM
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Engine Surging / Ittaratic idle / Studderring

My 2002 F250 7.3 is having some probs. when I start the truck, the engine surges from 1500 RPMs to about 500. If I push on the gas and keep RPMs constant for about 10 seconds, when I let go it will steady the RPMs but when I drive it is rough and studders and hard shifts till the engine gets to operating temps. I just changed out the glow plug relay and that improved the studderring but now I have the surging issue. Truck has 270,000 on it and I just got it so not too sure what all has been done.
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Old 07-04-2013, 11:32 AM
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