Question about 1999 Oldsmobile Alero

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1999 Oldsmobile alero the gas gage jumps from full to empty either just idling or moving what is the problem

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This can be a number of things. First, a loose or corroded ground connection or the connection at the sending unit. Could be a bad connection at the dash. Could be a bad sending unit in the gas tank. Or, a bad gas gage. Or even the wiring in between. You will need someone who is competent at electrical troubleshooting to find the problem. Don't let someone tell you something is bad without even looking at it first or you might buy parts you didn't need.

Posted on Apr 04, 2015

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  • 11 Answers

Check the ground

Posted on Apr 03, 2015

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Posted on Jan 02, 2017

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SOURCE: My 1999 Oldsmobile Alero Gas gauge and fuel system

well # 1 the full gauge when empty is a sign that your fuel pump is bad and that needs to be replaced the part about spitting the gas back out is probrobly a clog between the fuel door and the tank itself or their might be a vapor lock door that might be stuck shut so fuel cant get in im not 100%sure about that but im 100%sure that the fuel guage is the fuel pump being dead.

--THB--

Posted on Aug 23, 2008

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SOURCE: Gas gage on my 2004 Ford Explorer Sport Trac is not working

check your fuel pump wireing

Posted on Mar 17, 2009

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SOURCE: 1999 oldsmobile alero the traction and cruise not working

use a scanner to check the abs system . most of the time the abs brakes and traction control system work together. your cruise control . unit has a servo motor .in front right fender well. check the fuse and relay also the cruise control brake release switch. and the brake light switch.if all is good you have a cruise control module problems. dealer ship job.

Posted on Apr 02, 2009

  • 11 Answers

SOURCE: 99 chevy silverado fuel gage malfunctions

A bad electric connector is possible. A bad tank sending unit can cause the same symptom. Usually the sending unit is a reostat mounted inside the tank.. it changes resistance depending on the float position, the resistance change causes a different voltage to the gauge or signal processor. The reostat may be a resistive plastic strip, as the float moves a contact pointer wipes the length of strip thus the change in resistance and voltage. Clear as mud?

Posted on Apr 07, 2009

bunnydawg
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SOURCE: 2001 chevy impala gas gage probiem, when you turn

check the relay for the fuel guage. if it's not labeled let me know i'll try and find which one it is

Posted on Apr 15, 2009

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There is a humming sound coming from the front end of my 1999 oldmobile alero. Only happens when the car is moving. I dont hear itat idle or even when pushing the gas at idle. could it be my transmission...


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Sep 13, 2009 | 1999 Oldsmobile Alero

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My check engine light came on on the right side, and then my fuel gage went bonkers. I was in park and the fuel gage went to empty. I turned off and then it took awhile to come back up to full. I filled up...


I hope you did not top it off because filing it up like that will wreck havoc on the evap system. The engine light should go away as the gas in your tank is used up, or it may take some time, but hopefully it goes away. Just next time you fill up don't top off when it clicks off thats it. Also make sure the gas cap is tight. A loose gas cap can make the check engine light come on. I am an emmission repair specialist, and deals with these crazy things sometimes lol.

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Replace the sending unit in the tank

May 24, 2009 | 1999 Oldsmobile Alero

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My 1999 Oldsmobile Alero Gas gauge and fuel system


well # 1 the full gauge when empty is a sign that your fuel pump is bad and that needs to be replaced the part about spitting the gas back out is probrobly a clog between the fuel door and the tank itself or their might be a vapor lock door that might be stuck shut so fuel cant get in im not 100%sure about that but im 100%sure that the fuel guage is the fuel pump being dead.

--THB--

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