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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 08-21-2009, 07:50 AM   #1
sigmund
 
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Default gas gauge not working

I am new to the forum and did a search, but did not find anything related to gas gauges.

I bought my 90 GT 5 speed two weeks ago, and I am making it a rolling restoration. The gas gauge was not working when I bought it, and I would like to know where to start with the diagnosis and repair. I am hoping it is an easy fix, but it never has been for me.

Any ideas as to where to start and proceed?

Thanks in advance.

Sigmund
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Old 08-21-2009, 08:22 AM   #2
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The fuel sending unit is usually the most likely cause.
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Old 08-21-2009, 09:43 AM   #3
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Indeed. Or you'll get lucky like me and run the car out of gas completely and when you fill it up the gauge will be working again. O.o

But it's most likely your fuel level sending unit.
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Old 08-21-2009, 10:37 AM   #4
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Or the slosh sensor, located behind the gauge cluster. A square chip. this is what IM hearing...
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Old 08-21-2009, 11:03 AM   #5
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Default fuel level sending unit

Thanks for your responses. Pardon my ignorance, but I am assuming the fuel level sending unit is in the tank, and the tank must be removed to access it. Is that correct?

Sigmund
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Old 08-21-2009, 11:13 AM   #6
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^that is correct, its the innermost unit that goes into the tank from the top. Let us know your progress and if you fix it, what the culprit is. Im having the same prob, but I think its the slosh sensor.
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Old 08-21-2009, 12:15 PM   #7
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Quote:
Originally Posted by domindart View Post
^that is correct, its the innermost unit that goes into the tank from the top. Let us know your progress and if you fix it, what the culprit is. Im having the same prob, but I think its the slosh sensor.
Anti slosh module*

Not trying to be a condescending ***, just giving you the correct term for the part.
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Old 08-21-2009, 12:44 PM   #8
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cool thnk u
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Old 08-21-2009, 01:28 PM   #9
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I will post what the culprit was when I find it out. Thanks again.

Sigmund
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Old 08-22-2009, 01:19 AM   #10
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I have never heard of thise anti slosh sensor. O.o
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Old 08-22-2009, 01:19 AM
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1990, 2005, 2009, 50, 87, 89, ford, fuel, gage, gas, gauge, guage, mustang, mustangs, shelby, working

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