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Gas Gauge to work improperly?

Tiny
CUSO
  • MEMBER
  • 1997 CADILLAC STS
  • 130,000 MILES
1997 Cadillac sts 4.6 If I hooked up the two black wires on my fuel pump wrong, would this cause the gas Gage to work improperly?
Wednesday, February 29th, 2012 AT 8:37 PM

9 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The gray wire is the power to the fuel pump and black goes to ground- dunno where the other black wire goes-no wiring diagram for the fuel sending unit-sorry
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Wednesday, February 29th, 2012 AT 8:54 PM
Tiny
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There are two blacks a gray and a purple
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Wednesday, February 29th, 2012 AT 8:56 PM
Tiny
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Did you replaced the fuel pump?
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Wednesday, February 29th, 2012 AT 9:17 PM
Tiny
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Yes I replaced it
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Wednesday, February 29th, 2012 AT 9:19 PM
Tiny
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Double check the wiring from the connector to the fuel sending unit
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Wednesday, February 29th, 2012 AT 9:46 PM
Tiny
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Could it be a bad connection or something?? Is that what you think happened?
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Wednesday, February 29th, 2012 AT 9:48 PM
Tiny
RASMATAZ
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Dunno, you just have to backtrack your work if its working prior to replacing the pump-
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Wednesday, February 29th, 2012 AT 10:11 PM
Tiny
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  • 6 POSTS
The Gage dis work prior to replacing the pump. By the way thank you for your help. Does this seem like a wiring issue or maybe the float?
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Wednesday, February 29th, 2012 AT 10:15 PM
Tiny
RASMATAZ
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Open it up and recheck wiring and float resistances
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Wednesday, February 29th, 2012 AT 10:23 PM

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