03 denali new fuel pump will only work if I hot wire the pump

2003 GMC YUKON
104 MILES
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HEHT
  • MEMBER
  • 1 POST
old fuel pump dead. New pump will only work if i jump it from battery then car will start and rev up. I get nothing trying to jump #30 and 87 on the relay.
Dec 19, 2011 at 9:44 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Could be the computer is not grounding the fuel pump relay
Dec 19, 2011 at 9:51 PM
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