a friend with bad fuel meter

nefary · Post by **nefary** » Fri Nov 18, 2005 11:54 am

I have a friend with a slight proplem

his proplem started when he leaves his car in the direct sunlight . he came back to the car he find that the fuel guage's needle refer to the red dash at the E sign. after a period of normal operation of the car it refer to the right value.

he disassimbled the fuel pumb & found lots of mud & fussies on it so he cleaned it good with gas and some cleaners and assimbled it back

directly when connecting the -ve cable of battery back the guage raised up to reach the middle dash ( the car actually had a 10L in tank) . so he went to fill the tank and see what happen

the proplem now that the guage refer to the F dash until the car had a 20L in its tank and start to get down to reach the middle dash when the car had no fuel in it

any ideas?

MMamdouh · Post by **MMamdouh** » Fri Nov 18, 2005 6:25 pm

relocate the fuel gauge needle according to the amount of fuel in the car... check the how to section about that.

MMamdouh

nefary · Post by **nefary** » Sat Nov 19, 2005 12:58 pm

you know if the proplem with needle it would raise from 0-40L in the car without refer to the dahses in the guage( the meter has a range)

but the proplem is the meter has no motion for the tank with less than 20L

you can avoid the purpose is in the guage I think it is in the control circuit

MMamdouh · Post by **MMamdouh** » Sat Nov 19, 2005 1:12 pm

maybe it is trying to go over the F mark and can't when the car is full of fuel... when the fuel level drops it goes down with no problem.

i am not really sure... i am just guessing.

MMamdouh

nefary · Post by **nefary** » Sat Nov 19, 2005 4:02 pm

the fuel guage specially use up & down voltage that is mean that when you fill the tanke with any amount of oil the up signal reach to the meter & the opposite thing is right. that is mean that the meter ( as you guess) have a shift in reading . it must go over the F mark .

I make an experiment. adjust the needle to the opposite diriction of reading ( the needle refer to the left hand side ) and when I turn the engine on it came back to its previous value

any other ideas from the forum???

a.k.n