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Erratic Fuel Gauge
March 25th, 2012, 4:09 PM
#11
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Welcome to the forum..
This is a pretty old post, but you never know someone might come back with an answer....my first guess would be a poor ground connection or a bad gauge...
This is a pretty old post, but you never know someone might come back with an answer....my first guess would be a poor ground connection or a bad gauge...
March 25th, 2012, 6:58 PM
#12
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Jeff, thank's for the welcome. I sure hope someone chime's in, it sure is strange they all have the same type of characheristics. I bought my 99 Tahoe 4dr 2wd from the original owner, she said the Dealer replaced fuel pump under warranty earlier, and shortly thereafter the erratic problem began, and still exists today. Seems like I read somewhere to use Dielectric grease on the connections @ the tank, What is your thought and anyone else on the forum ?
david
david
Last edited by justimagination; March 25th, 2012 at 6:59 PM. Reason: correction
March 25th, 2012, 11:22 PM
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Jeff, thank's for the welcome. I sure hope someone chime's in, it sure is strange they all have the same type of characheristics. I bought my 99 Tahoe 4dr 2wd from the original owner, she said the Dealer replaced fuel pump under warranty earlier, and shortly thereafter the erratic problem began, and still exists today. Seems like I read somewhere to use Dielectric grease on the connections @ the tank, What is your thought and anyone else on the forum ?
david
david
April 12th, 2012, 5:09 AM
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I have the same problem in my '98 4x4 Suburban. I think someone posted on another forum that they replaced the instrument cluster and this solved the problem. It's easy to do and they are plentiful at pick-n-pull lots. Problem is you will probably find one with the same problem at the scrap yard.
April 12th, 2012, 9:17 AM
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<!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <w
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It may be an instrument panel issue. I encourage you to have the vehicle inspected by a certified technician.
Louis
GM Customer Service
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Louis
GM Customer Service
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Liz York (January 13th, 2021)
April 12th, 2012, 9:35 PM
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theres many variables...if the whole sending unit and pump are replaced then there should be no reason as long as it was done right and there were no gauge problems to begin with
July 6th, 2020, 6:06 PM
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I have a 1999 2-door 4wd Tahoe. I just had the fuel pump replaced and when I got the truck back, the fuel gauge is now erratic. It moves back and forth like the blinker was on or something, but not back and forth too far , just slightly. It doesnt jump all over the place and its not too noticable during the day. When I am driving at night and the gauges are lit up, it almost looks like its vibrating back and forth extremely fast like a humming bird almost. Now the mechanic even replaced the 1st new fuel pump assembly w/sending unit and the same thing is happening. It even does this with the truck off and the key turned to the on position. It didnt do this before I had the pump replaced and now no one can figure it out. Any help would be greatly appreciated. Thanks...
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