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Is there any way to test to see if the fuel pump or fuel pump relay are bad on a 1998 GMC sierra 1500 pick up?
Wiki User
∙ 19y ago
If you look far and wide, you can get a pressure guage to check fuel pressure. Pumps are notorious for going out on these vehicles. And since it is located inside the tank, you will have fun replacing it.
Wiki User
∙ 19y ago
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