Ford F150 Forum - Community of Ford Truck Fans

Topic Sponsor
2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck.

Inaccurate Fuel Gauge Reading

Thread Tools
 
Search this Thread
 
Old 01-10-2013, 06:57 PM
  #1  
Member
Thread Starter
 
bigshot's Avatar
 
Join Date: Sep 2012
Posts: 57
Received 10 Likes on 4 Posts
Default Inaccurate Fuel Gauge Reading
Hi there !

Was wondering if anyone encountered that issue before: I get a low fuel light at 1/4 tank now and when I fill it up, it goes past the 'F'. What is causing that ? It use to be fine b4. I have an 04.
bigshot is offline  
Reply Like
Old 01-10-2013, 07:30 PM
  #2  
Member
 
tsho86's Avatar
 
Join Date: Jul 2012
Location: Utah
Posts: 60
Received 4 Likes on 3 Posts

Default
Probably bad fuel sending unit.
tsho86 is offline  
Reply Like
Old 01-11-2013, 05:09 AM
  #3  
Member
Thread Starter
 
bigshot's Avatar
 
Join Date: Sep 2012
Posts: 57
Received 10 Likes on 4 Posts
Default
Originally Posted by tsho86
Probably bad fuel sending unit.
So I prob gotta replace that harness right ?
bigshot is offline  
Reply Like
Old 01-11-2013, 07:52 AM
  #4  
Senior Member
iTrader: (2)
 
alsatropine's Avatar
 
Join Date: Mar 2012
Location: Arab, AL
Posts: 2,115
Received 142 Likes on 129 Posts
Default
The fuel sending unit attaches to your fuel pump. It measures the amount of gas left in your tank. You have to pull the fuel pump to replace it.
alsatropine is offline  
Reply Like
Old 01-11-2013, 08:38 AM
  #5  
Senior Member
 
08screwCA's Avatar
 
Join Date: Oct 2012
Posts: 983
Received 71 Likes on 70 Posts
Default
My gas gauge has seemed off since i put 35s on. Sorry to thread jack OP but can larger tires cause this or would it be the sending unit. Mine is the exact same as what the op described
08screwCA is offline  
Reply Like
Old 01-11-2013, 10:47 AM
  #6  
Senior Member
 
wrvond's Avatar
 
Join Date: Nov 2012
Location: West Virginia
Posts: 430
Received 46 Likes on 41 Posts
Default
Originally Posted by 08screwCA
My gas gauge has seemed off since i put 35s on. Sorry to thread jack OP but can larger tires cause this or would it be the sending unit. Mine is the exact same as what the op described
Well, your truck sits higher so the fuel level float is higher now too. It should read more gas than there actually is because of that.
J/K! The real answer is "no".
wrvond is offline  
Reply Like
Old 01-11-2013, 10:56 AM
  #7  
Senior Member
 
MixMastaMM's Avatar
 
Join Date: Dec 2011
Location: Bergen County
Posts: 124
Received 13 Likes on 11 Posts

Default
Try putting some injector cleaner with your next fill up. There could be a build up of sulfur on the sending unit contacts causing the false reading.
MixMastaMM is offline  
Reply Like

Trending Topics

Old 01-11-2013, 11:15 AM
  #8  
Senior Member
 
08screwCA's Avatar
 
Join Date: Oct 2012
Posts: 983
Received 71 Likes on 70 Posts
Default
Originally Posted by wrvond

Well, your truck sits higher so the fuel level float is higher now too. It should read more gas than there actually is because of that.
J/K! The real answer is "no".
Lol well my computer tells me im on empty whilevmy gauge says quarter tank.. and it costs less to fill also
08screwCA is offline  
Reply Like
Old 01-11-2013, 11:19 AM
  #9  
Senior Member
 
bogeyrider63's Avatar
 
Join Date: Jul 2009
Location: michigan
Posts: 180
Received 16 Likes on 12 Posts

Default
had this issue on my truck. it was the fuel sending unit on mine.
bogeyrider63 is offline  
Reply Like
Old 01-11-2013, 07:34 PM
  #10  
Member
Thread Starter
 
bigshot's Avatar
 
Join Date: Sep 2012
Posts: 57
Received 10 Likes on 4 Posts
Default
Originally Posted by MixMastaMM
Try putting some injector cleaner with your next fill up. There could be a build up of sulfur on the sending unit contacts causing the false reading.
Which product would you recommand ? I'll give it a try b4 going for that sending unit. Harness was replaced not too long ago. If I knew, I'd replace everything one time !
bigshot is offline  
Reply Like



Advanced Search
Quick Reply: Inaccurate Fuel Gauge Reading


Reply Closed Thread Share

All times are GMT -4. The time now is 07:49 PM.