What does your gas gauge read when you get..
#1
What does your gas gauge read when you get..
I just put 7 gallons in my 79 4x4 with a 460. I think I may have a couple more gallons in the tank but it was reading on E or little past E on my cluster. I know you can't trust your gauge but I also installed a new sending unit.
After I put 7 gallons in it, it's reading between 1/4 to 1/2 a tank.
I knpow the other day I put in 15 or so gallons and the needle on the cluster shot pass the Full mark and pegs out which I know my tank wasn't full because the fuel nozzle didn't click; which makes me think my cluster gauge is no good.
I'm just trying to figure it all out. My speedometer doesn't work so that is out of the question.
What does yalls gauges read when yall don't get a full tank...like how many gallons did you get and what did it read on your cluster?
After I put 7 gallons in it, it's reading between 1/4 to 1/2 a tank.
I knpow the other day I put in 15 or so gallons and the needle on the cluster shot pass the Full mark and pegs out which I know my tank wasn't full because the fuel nozzle didn't click; which makes me think my cluster gauge is no good.
I'm just trying to figure it all out. My speedometer doesn't work so that is out of the question.
What does yalls gauges read when yall don't get a full tank...like how many gallons did you get and what did it read on your cluster?
#3
Mine acts wierd too, like it exaggerates in each direction. I put in a new sending unit from autozone and you don't have to to fill the tank completely for the gauge to read full. When it hits E I still have over 6 gallons left in the tank. This is with a 1973 f100 390/c6 2WD shortbed. I suspect that it is related to the aftermarket sending unit not being calibrated at the exact resistance for our trucks. It's close, but not quite right.
#4
#7
Josh
Trending Topics
#8
Mine throws me off to. A few weeks ago I filled it up from a half tank and it took almost $50 exactly. I filled it up from a half tank last week and it took $35 on the nose. Not sure of the gallons I put in (My town is on the canadian border and everything reads in liters so I just ignore that and pay attention to the price.) but the price had only changed a few cents.
#9
Well, in my 74 it's still not working at the moment (waiting on the new gauge to get here from Texas) and in my 2001 F150 it slowly gets to half and after that it goes to the left side rather quickly. Gauges are only an estimate. The true way to know how much gas you have is by averaging at every fill. At least this what I do that way I know if my mpg goes way down then something is wrong with truck itself.
#10
#11
Join Date: Oct 2011
Location: Santa Cruz Mountains
Posts: 1,423
Likes: 0
Received 2 Likes
on
2 Posts
Do a test run. Fill a five gallon gas can to take with you. Then plan a journey on a reasonably flat road, siphon what you can out of your tank. Then drive till it stumbles/runs out of gas.
Put the five gallons in and note where your gauge reads. Then you know where your gauge reads at a little more than 1/4 tank or when you have 5 gal to go...
I like to know when I'm going to run out.... Mine does peg when full and runs out just below empty. Needle halfway but not below the empty line.
.
Put the five gallons in and note where your gauge reads. Then you know where your gauge reads at a little more than 1/4 tank or when you have 5 gal to go...
I like to know when I'm going to run out.... Mine does peg when full and runs out just below empty. Needle halfway but not below the empty line.
.
#12
Mine's just a little weird. Full is full. If you fill it up and top it off until the pump clicks off several times, the needle is just above full.
Then from there, if the gauge reads 1/2, you have 3/4 left.
If the gauge reads 1/4, you have 1/2 tank left.
On empty, there's 5 or 6 gallons left.
The tank holds 17 gallons all together.
I've replaced the entire fuel system on my truck. Tank, fuel lines, sender and pump. I'm pretty familiar with the truck by now.
Then from there, if the gauge reads 1/2, you have 3/4 left.
If the gauge reads 1/4, you have 1/2 tank left.
On empty, there's 5 or 6 gallons left.
The tank holds 17 gallons all together.
I've replaced the entire fuel system on my truck. Tank, fuel lines, sender and pump. I'm pretty familiar with the truck by now.
#13
I filled up yesterday in town Put 40$ in and probably 30 cents worth down the side of my cab. (was watching some moron slide towards a telephone pole) When i got in my gauge said approx 1/8-1/4 tank. I just carry half of a broom handle in my toolbox to use as a gas gauge and ignore the one on the dash.
#14
Have you actually bench tested the sending unit and measured its resistance yet? If memory serves me correctly, you were having issues recently and asked about it, and my next suggestion was to bench test the sending unit. I don't recall hearing back.
The sending unit and the ground out at the sending unit are usually the weak link in the chain. The gauge itself can be bench tested as well, if everything else checks out properly. You can't suspect the gauge until you prove everything else out. Brand new sending units go bad all the time.
The sending unit and the ground out at the sending unit are usually the weak link in the chain. The gauge itself can be bench tested as well, if everything else checks out properly. You can't suspect the gauge until you prove everything else out. Brand new sending units go bad all the time.