84-85 Trucks & 4Runners 2nd gen pickups and 1st gen 4Runners with solid front axles

fuel gauge wont read full but still functions

Thread Tools
 
Search this Thread
 
Old 06-23-2015, 11:08 PM
  #1  
Registered User
Thread Starter
 
Eagle564's Avatar
 
Join Date: Sep 2012
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
fuel gauge wont read full but still functions

1985 toyota 4wd 22re 5 speed and all that stuff. Anyways last time I was wheeling i slid off a rock and slammed the rear end on the bump stops hard. Shortly after i noticed my truck said it was at half a tank when it shouldve been down maybe an 1/8th of a tank. Long story short, my gauge will read empty but then ill fill it up and get only 9 gallons, and i have em fill til its pourin out. And even after filling, the gauge only reads slightly below 3/4ths of a tank. So whats exactly wrong and how do i go about fixing it? All the issues ive read on this only talks about the gauge not working at all so i have tried researchin myself.
Old 06-23-2015, 11:25 PM
  #2  
Registered User
iTrader: (1)
 
wyoming9's Avatar
 
Join Date: Apr 2009
Location: I live in New Tripoli Pa out in the woods
Posts: 13,381
Received 99 Likes on 86 Posts
Red face

The sending unit is variable resister as the float moves it changes the resistance which moves the gas gauge .

The fact it is old your little bump may have been enough to cause things to move. Did you hit the fuel tank at all??

Depending just where you live dropping the tank and pulling the sending unit out and attempting to repair it could be a major project.

I know I bought a new sending unit(87) but it has been a few years.

I live with a fuel gauge that does not work I just fuel up every 125 miles or so.
Old 06-23-2015, 11:29 PM
  #3  
Registered User
Thread Starter
 
Eagle564's Avatar
 
Join Date: Sep 2012
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
Ya thats what ive been reading i was just curious if it may have been somethin easier. I didnt hit my tank as far as i know, my rear end has about 2"s of up travel before my bumpstops and it hit extremely hard. Lowcog problems i guess haha
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bigjstang
86-95 Trucks & 4Runners
20
08-25-2021 12:41 AM
sandyota
84-85 Trucks & 4Runners
18
02-04-2021 11:16 AM
TURBOrunnerNM
86-95 Trucks & 4Runners
4
07-22-2015 11:01 AM
redneck17
86-95 Trucks & 4Runners
8
07-17-2015 07:44 PM
Poncho0206
95.5-2004 Tacomas & 96-2002 4Runners
3
07-10-2015 06:21 PM



Quick Reply: fuel gauge wont read full but still functions



All times are GMT -8. The time now is 05:26 AM.