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Engine will not stay running?

Tiny
YOURMAMA1975
  • MEMBER
  • 1999 GMC YUKON
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 126,000 MILES
I just replaced my fuel pump fuel sending unit. The engine starts then shuts off. Fuel pump is kicking on because I could hear it. Error code came up saying I have a bad MAP sensor fault. Could my map sensor cause this? Because I really don't want to drop my gas tank again to replace another fuel pump fuel sending unit. Any help would be greatly appreciated.
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Saturday, November 5th, 2022 AT 10:25 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,709 POSTS
Hi,

If the MAP is bad, yes it could cause this to happen. Check to see if there are any issues at the connector. Check for corrosion or damage to the connector.

I attached the directions below showing how it's replaced.

Let me know what you find.

Joe

Take care,

Joe

See pics below.
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Sunday, November 6th, 2022 AT 12:11 AM

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