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1946 flyer

2007 Sunesta

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Hello, new to forum now that I retrieved password! My 2007 Sunesta with 5.0 Volvo has started to idle just a little rough, starts ok but when advancing the throttle the engine will not accelerate past 2000 rpm.

If I put the engine in neutral it will run up fine, only under a load will it bog down! Checked the anti-siphon valve, and exhaust temp sensors, all seems ok. Has anyone else had the problem, heard it might be fuel pump/pumps?

Thanks

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