fuel sender maybe?
fuel sender maybe? sometimes my gas gauge works and sometime it just stays below e and i can have full tank of gas or it takes a really long time to come up when i have gas in the car....any inputs?
Possibly the sending unit in the tank. I bought a used bucket assembly for a double pump system and a couple of the tiny tabs on the resistor part were missing. I guess its a possibility.
bringing this back from the dead because I have having this same issue. I have an aftermarket fuel pump installed(previous owner) and like the OP said, my guage is also all over no matter how much gas is in it. i have the same exact issue as OP. The previous owner cut a trap door to get to it so I dont have to drop tank but if anyone can help me out please this is driving me nuts!!
Staging Lane
Joined: Feb 2011
Posts: 95
Likes: 0
From: Detroit, MI
It is likely the level sensor card or wiper finger contacts. A float travels up and down with the level of gas and causes the wiper fingers to sweep across a resistor card which results in varying ohm resistance readings to be sent to the fuel gauge. The resistor card with get film on it, corrode, smear; or the contacts with break off/get bent, and you will lose the electrical contact between the resistor card and wiper fingers. You can either buy a replacement level sensor assembly to retrofit onto your existing fuel sender assembly, or just buy a whole new one with new pump and everything to drop in. Knowing you have an aftermarket sender assembly, there is no telling what level sensor assembly will retrofit to it...so I would just buy a whole new pump module assembly
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It is likely the level sensor card or wiper finger contacts. A float travels up and down with the level of gas and causes the wiper fingers to sweep across a resistor card which results in varying ohm resistance readings to be sent to the fuel gauge. The resistor card with get film on it, corrode, smear; or the contacts with break off/get bent, and you will lose the electrical contact between the resistor card and wiper fingers. You can either buy a replacement level sensor assembly to retrofit onto your existing fuel sender assembly, or just buy a whole new one with new pump and everything to drop in. Knowing you have an aftermarket sender assembly, there is no telling what level sensor assembly will retrofit to it...so I would just buy a whole new pump module assembly
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I'm having the same problem in a 98 trans am. Whats the fix? Sending unit or a whole fuel pump module? Assuming the sensor prongs being broken cause this, is that part available seperately from the module assembly? thank you!
-james
-james
TECH Enthusiast
Joined: Jul 2010
Posts: 571
Likes: 0
Here you go guys, Racetronix $49.00
http://www.racetronix.biz/items.asp?...Module%20Parts
http://www.racetronix.biz/items.asp?...Module%20Parts
