FUEL GAUGE

Tiny
TWIN1
  • MEMBER
  • 2002 HONDA CRV
  • 4 CYL
  • AWD
  • AUTOMATIC
  • 80,000 MILES
Filled gas tank, fuel gauge took long time to full. Today gas light came on.
Monday, July 26th, 2010 AT 1:23 PM

14 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi TWIN1,

Do you mean the Check Engine Light is indicating?

If that is the case, get a free scan done at Autozone and let me know the EXACT trouble code.
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Wednesday, July 28th, 2010 AT 10:04 AM
Tiny
J.A.P.
  • MEMBER
  • 2 POSTS
  • 1999 HONDA CRV
  • 10,200 MILES
It stays at half even with engine turned off
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Tuesday, October 1st, 2019 AT 6:23 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Remove the connector at the tank sender unit which should be under the back seat at a cover?
It should pin one way either full or empty. If it does, the sender is at fault, if it does not change, the the dash unit is most likely bad.

Roy
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Tuesday, October 1st, 2019 AT 6:23 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The gauge needle would stay at where it is when ignition is turned off.
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Tuesday, October 1st, 2019 AT 6:23 PM (Merged)
Tiny
J.A.P.
  • MEMBER
  • 2 POSTS
Thanks for your prompt replies. I think I best take it to my mechanic if it is the sender unit.

The needle stays where it is KHlow2008, But doesn't seem to move at all
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Tuesday, October 1st, 2019 AT 6:23 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
It would move only when ignition is on and the sending unit senses a difference in the fuel level. However if the needle does not move when you have topped up the fuel or the level has dropped, then it could be a fault with the sending unit or gauge.
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Tuesday, October 1st, 2019 AT 6:23 PM (Merged)
Tiny
ATHENAK012002
  • MEMBER
  • 3 POSTS
Please excuse my technicality as I'm not a mechanic nor have much experience but I have someone shown me this today so I thought I would like to share with everyone.
So I did what AseMaster recommended by unplug the pink plug( see pics) and turned on the ignition. Sure enough the gas gauge went all the way down to empty. Next I remove the 2 plugs and the 2 fuel hoses(under the driver side rear seat) and remove the whole assembly. From the attached picture you will see the floater is actually connected to a metal rod which also connects with the metal sensor. Make sure the 2 metals are making contact or simply use fine sand paper to create a contact surface for both. After that, put everything back to its original place and plug everything back. Turn ignition on and you will get your meter back to normal. Good luck.
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Tuesday, October 1st, 2019 AT 6:24 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
What happens to the gauge needle when you turn the igntion off after the repair job?
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Tuesday, October 1st, 2019 AT 6:24 PM (Merged)
Tiny
JOEL THOMASON
  • MEMBER
  • 2 POSTS
  • 1997 HONDA CRV
  • 2.0L
  • AWD
  • AUTOMATIC
  • 178,000 MILES
Gas gauge stays just under full at all times, never moves, never fluctuates. How do I fix this so I know how much gas I actually have left?
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Tuesday, October 1st, 2019 AT 6:24 PM (Merged)
Tiny
ATHENAK012002
  • MEMBER
  • 3 POSTS
I added some more fuel and the needle went up. It went back to normal like it supposed to be.
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Tuesday, October 1st, 2019 AT 6:24 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
See pictures on how to test gauge and sending unit. If both are okay then it may be gauge wire grounding out.
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Tuesday, October 1st, 2019 AT 6:24 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
When ignition is turned off, does the needle drop to E or stayed where it was?
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Tuesday, October 1st, 2019 AT 6:24 PM (Merged)
Tiny
ATHENAK012002
  • MEMBER
  • 3 POSTS
The needle only dropped off when you unplug the sender unit otherwise it stayed the same constant position.
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Tuesday, October 1st, 2019 AT 6:24 PM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Ok, thank you.
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Tuesday, October 1st, 2019 AT 6:24 PM (Merged)

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