Question about 2000 Chevrolet Blazer

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Fuel gauge problem not working

Have harness pulled back off of wires thinking a ground problem just trying to make sure when i run a new ground i hook it to the right black reason for asking about wires because in the wiring harness there are three black 2 with a white line down them. 2000 chevy blazer do not want to burn up fuel pump by hooking to the wrong wire has a 4.3 motor pensylvania vehicle prone to ground problems because of rust

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Its more likely the sending unit resistor inside the tank. sometimes you can replace just the float resistor with another working used one but most new ones come only as the complete unit

Posted on May 28, 2010

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2005 Jeep Liberty won't start, fuel pump won't run, fuel tank is full but gauge reads empty. Suspect ground wire as it is common to both but can't find ground connection

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see if you might have a bad ground on the gas tank where wires hook up to the top of gas tank. I don't know if you can reach up and move the wires around from side to side could have a bad connection. might have to let the gas tank down. have you tried to check your fuses first. if you find one for the fuel gauge pull it out look at real good make sure it is not burnt across inside by looking at the fuse what I usually do if you have another good fuse same amp is try a different fuse just to be sure.i use to work on cars a lot but had surgery on my back so from work history of 30 plus years of knowledge I hope I can help others. I hope this works let me know if this helps. you also might try to wiggle the wires around on the back of fuel gauge. you may also have a bad gas gauge but try what I said to try first. god bless

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My 97 S-10 Blazer fuel guage wont work

Likely, it's the sender unit in the tank. To check wiring and your dash gauge, you can pull apart the connector at the fuel tank, find the wire for the gauge sender unit (its color coded-I dont kinow what the one for your car would be), and on the harness side(the one going to front of vehicle) use a jumper wire and ground that wire to the car frame(get me? you want to ground the wire going to your dash gauge)-with key on, your gauge working properly will move up to half-way or even full. That tells you your dash gauge is working and your wiring to gauge is good. If gauge doesn't move when grounded(double check for a good ground), then your dash gauge may be bad.

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I bought a used car nissan altima 2001.the fuel guage is not working.a roadside mechanic tried fixing it but is stuck.what do i do

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Check first the wiring to make sure the harness going to and from the fuel tank is not disconnected or cut off.
Check the grounding of the fuel float( ground ( - ) ), negative is the one that signals the float to send signal to your fuel gauge. Try to connect a wire in the circular metal base of the float to any expose body ground of your car ( the center terminal if you ground it directly it should move your gauge to "full" ).
Last one is to pull out the fuel float itself and look at the resistor wound, where the float contact is moving, if you have a continuity tester test it.
Finally the gauge, a service technician must handle it to remove the entire panel for removing, checking, and replacing the fuel gauge inside the gauge panel.
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2007 Chevy silverado (classic). Once hooked up to trailer, the brake lights do not work only turn signals on trailer.

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