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low fuel light question

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chadly

Member
Joined
Mar 29, 2007
Messages
1,218
I just went out for my 2nd cruise now that the alky is installed. I notice that my low fuel light comes on when I take left hand corners and under boost as well. The tank is about ¾ full. What do you think is wrong, what should I check?

Thanks
Chad
 
its touchy, i noticed the same thing with mine, even at 3/4 the float is close

as long as ya know what ya got in it

fun aint it though..like a new ride
 
It is the BOMB! I just went out and checked the volume and ya its closer to the add than I had thought. Even so the add is at roughly 1/2 tank. This first tank will not last long, nor will my tires. Every time I do an upgrade to my car the seat of the pants dyno thinks it can tell. With the alky upgrade the seat of my pants were filled.:eek: Why did I wait so long?
 
its watch you call fail safe when it starts to flicker it just keeps you reminded that you should soon need to add alky. you still have a few wot runs after it starts to flicker. also depends on your consumption and gain settings. get to know your car on alky and its consumption amounts
 
Technically.. methanol has a specific gravity of .79. Water is 1.0. Meaning methanol is 21% lighter than water. The lighter the liquid, the less things like to float in it. The floats have a hard time staying afloat in methanol. Even tho they are at the very lowest possible point in the tank. So what happens is the liquid in the tank sloshes back and forth, this cuases the float to bounce. When the float bounces.. it cuases the LED to blink. If the tank is full all the way to the top of the neck.. the float wont bounce. As the tank level comes down, the float will bounce more.. and you can guage how much alcohol is left in the tank by the way the LED blinks.

If the car is sitting still and the light is "ON".. then it is time to fill it.I made a circuit about a year ago that was a delay.. meaning when the float was down for 5 seconds.. the LED would then light.. at that time, most prefered having the early warning of the blinks vs a too late we now dont have meth warning.

The GM gas guage on the Buick when it gets down under a 1/4 tank will bounce to E and back under cornering or stopping..etc. This is the same case.

HTH

Julio
 
another kinda confusing point is that the add/max fill line on the bottles dont mean anything. The bottles are coolant overflow tanks, so dont pay any attention to the markings on them.
 
Yup.. the tanks are made by GM.. If I was making them.. they would not be labeled that way.. while GM still does make them.. this will continue. If someday they stopped.. and a custome where to be made.. then this would change.
 
god i can't wait for my motor to come back and break it in so I can turn on the alky....:biggrin:
 
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