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don't run right at low speeds sometimes dies and wont start runs great on hi way on 1995 Chevrolet Suburban 1500

should idel at 1000 rpms but it varies from 8 to 1000

Asked by for the 1995 Chevrolet Suburban 1500
Idle should not be 1000, more like 600-650 area. Assuming no check engine light, check for a leaking fuel pressure regulator.
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Idle should not be 1000, more like 600-650 area. Assuming no check engine light, check for a leaking fuel pressure regulator.
Idle should not be 1000, more like 600-650 area. Assuming no check engine light, check for a leaking fuel pressure regulator.