Wierd Gas Guage

[BB33's]

Hey guys, In my 1995 Bronco with a 33 gallon tank whenever I get to about a half Tank th gas guage likes to wobble back and forth fromhalf to quarter so an and so on. I have noticed it does this when I stop and take off but smoothes out. I am guessing this is just because the tanks in broncos are deep and when you stop or hit a bump the gas likes to slosh around alot :wacko: . Does that sound right or do I have a bad connection somewhere. :blink:

 

[Seabronc]

That may be a bad spot in the sender unit, but if it only happens at 1/2 tank, I wouldn't worry too much about it. Since it only happens at 1/2 tank, I doubt that it is a loose connection.

Good luck,

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[Shadow_D]

My thought would be same as yours, sloshing, but Seabronc raises a good point. Does it stop when the gauge gets a little lower?

 

[barrett86]

i have the same issue, it goes down quick when i gas off a stop light or slide around corners on ice, check the ground on your sending unit from the tank, (from seabronc many posts ago).

 

[BroncoJeff]

I have a floating gauge an when i hit bumps or turn mine moves about all the time.

 

[BroncoJeff]

mines an 88 though.

 

[BB33's]

I ask because my 1990 never did this, oh and it does it all the time. Just more so when the tank gets emptier. Thats why I thought it was sloshing, more room more dramatic.

 

[Seabronc]

I have a floating gauge an when i hit bumps or turn mine moves about all the time.

If it is related to bumps, then I'd suspect a connection problem, (could be at any connector in the path). When I made my access hole for the sender unit, I replaced the connector on the sender and ran a new ground from one of my ground distribution blocks (not in your truck, I added these). That greatly improved the accuracy of the gas gauge so that when it hits a needle above E I have just about 5 gallons in my 33 gallon tank. One caution though, never put your full faith in the gauge keep an eye on the miles once you have a good idea of what you get in MPG. Sort of a sanity check :wacko: . I wouldn't worry too much about movement from sloshing though I can't say I have ever had that problem. It could be a problem with the sender but as long as it settles out and the gauge is fairly accurate. I have seen the reading vary when the front is setting significantly higher or lower than the rear, but the sender float is located to keep that at a minimum.

Pictures showing Ground Buss distribution blocks, (one of last years projects to improve my Broncos electrical system).

Good luck,

 

[89eddie89]

the first day i got my bronco i ran out of gas and the gauge said i had 1/8 left. haha but now i know when im empty