Question about 1995 GMC Suburban

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My 95 gmc burban has bad hesitation in the idle and during drive .some mornings its good some bad. ive replaced the fuel pump,fuel filter,dist cap and rotor , coil and even the fuel relay fuse .no change WHATS THE PROBLEM??????????

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Check plug gap/ spark plugs. Also check resistance on plug wires.

Posted on Oct 14, 2010

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Hesitates on acceleration


Does the car always hesitate during acceleration? If it ALWAYS struggles when it starts or ALWAYS hesitates on acceleration then I would say the issue is fuel delivery. If the problems are more intermittent and come-and-go then it could be an electrical issue.

I would start by changing the fuel filter. Changing plugs, wires, cap, and rotor are all good things to do as your budget will allow. I doubt you will have to change your injectors.

If you end up replacing any rubber fuel line, be sure to use the high-pressure stuff made for use on fuel injected cars.

I hope this helps! -Nick

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