Opinion on fuel gauge appreciated

[nickiec88]

My fuel gauge worked fine while it was in the 88 but since I've swapped it into the 87 it hasn't worked. I left the tank from the 87 on so I figured it was just a bad sender. When that tank finally started leaking I put the tank from the 88 on and still no luck. The gauge just sits around a quarter tank wether its full or not. And I'm not a a fan of relying on the warning light.

So I disconnected the sender and the gauge did not drop.
I jumped pin 3 to 4 and the gauge did not raise.
I took the gauge out and did a resistance test on it.
Ig - e 168.9
Ig - u 104.4
U - e 64.8

I know these number aren't spot on, but are thy close enough?


The only thing I can't do rite this minute is test the sender due to the rusted screws that hold it in. I know it worked just fine when I pulled it off the 88 tho. Im stumped, any opinions?

Thanks,
Nick

 

[hvyman]

If the numbers are out of spec replace it.

 

[jetjock]

"Approx"

 

[IndigoMKII]

Mine does something similar except likes to float around wherever it wants. I can fill it up and the gauge will go to full but when I start driving it around it'll just float around.

 

[jd20phill]

Have you tried cleaning the sender?

 

[nickiec88]

Well I just tried and tested a second gauge that I had laying around. The resistances are approximately the same as the fitst gauge. Repeated the same test with jumping pin 3 to pin 4 and nothing happened. I see in the tsrm picture for the 'inspection of gauge' that there is a ground somewhere by the sender? I can't remember where it is..

 

[nickiec88]

I just jumped 3 and 4 again and nothing happened i clipped a test light to the jump wire and grounded it. The test light is super dim and the gas gauge raises. When I ground 4 out by itself the needle drops....