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I have a 2007 sportsmen 800 the gas gage keeps blinking telling me I'm low on fuel when it full and i was told that wiring harness can short out.

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Either a broken wire or faulty gauge sender unit

Posted on Apr 22, 2017

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1 Answer

Fuel gage stuck on full


Either there is a short in the fuel sender wiring or the sender in the tank is bad.The actual gauge is rarely bad.Good luck.


Else
The float affixed to your fuel pump in your gas tank is stuck.

It tells the dash you ALWAYS have a full tank.
You have to drop the tank, PB Blast/WD40 the float, get it to drop down.
Finally
Your unit in the tank is bad. Pull it out and move it up and down while someone looks at the gauge. If doesn't work, buy a new one. They are not that expensive.

Apr 25, 2012 | Cars & Trucks

1 Answer

My gas gage is stuck an the gas light won't tell


you need to have the wiring checked for short to ground then if the wiring is ok i would replace your fuel tank sending unit(fuel pump assembly)

Oct 06, 2011 | 1992 Honda Accord

1 Answer

Gas guage shows over full all the time


You have lost the ground input to the gas gage. Its the black wire coming from the fuel pump connector at the fuel pump. Either the wire is broken or the input to the body control computer is broken, thus creating high Resistance on the input wire. The computer will think the tank is full, a shorted wire would indicate lo Resistance and read empty. Locate the fuel pump connector and jumper the black wire directly to the body (ground) and turn the key to run, check gage. If reads normal the wire is broken betwwen fuel tank and its ground location.

Jan 29, 2011 | 2000 Pontiac Firebird

1 Answer

Fuel Guage problem


Most of the time the gauge unit in the tank goes bad but turning the key on and off won't make any difference. Near the tank there is a multi wire electrical connector, With it unplugged and the key on probing the wires to the front of the truck with a test light one of the wires will light in a slow blinking, This is the gas gauge. with the light blinking the gauge should read something. un plugged should read empty and cross the light to ground it should read full. If the light doesnt come on your on the way back to the dash the wire could be in troble anywhere. repairs for other things are ussally the cause. If the test light check worked then the sending unit in the tank is bad and it will need to be replaced. Repairing them doesn't seem to stay fixed. A gas theif may have run into it with a hose and they can't take much banging around. The fuel gage and fuses are next. The temperture gauge works on the same power if it works OK the power is good. Then its the gage or the wire the is a voltage limiter card in a slot next to the gage in the cluster . The dealer can order a new one when you call them with the VIN and tell them you want the fuel gauge limiter module. If you have the skills to remove the cluster and see the module 1 in. X 2 in. flat electrical card. It has a part # on it and the dealer can verify that your looking at the right part. the gages seldom fail unless their submerised in water. Har driving can sometines loosen the connections to the cluster and redoing them and turning it on again, may correct thr problem. do this with the card and the gage too before you but anything, check the wire from the gage module maks it all the way to the gas tank with a jumper wire and a test light as the wire being broken somethere is most common.

Aug 12, 2009 | 1989 Ford Aerostar Cargo

1 Answer

I can not find any wiring diagram that shows the correct fuel module connector (7 pin). Gage stays pegged beyond full, and fuel low light will not illuminate, even when usable fuel in tank is exhausted....


sounds to me that the gas tank is not grounded or 12v was supplied to sender unit wire and damaged fuel gauge

run a ground wire from battery neg (black) post to clean metal on tank

Mar 19, 2009 | 2001 Chevrolet Astro

1 Answer

Fuel level sensor in tank bad????


Yes it is all one unit, and yes that is what the problem is. don't use aftermarket parts, use OEM, (Delco Remy) they are much better quality.

Sep 08, 2008 | 2000 Chevrolet Blazer

1 Answer

When empty fuel gage show full, I put 2 gallons of gas and it show 1/2 full


If your lucky, it's the wire harness from the frame to the gas tank. If your not lucky, it's the sending unit in the gas tank and that's expensive.

Jul 29, 2008 | 1997 GMC Jimmy

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