'08 TL Fuel Guage Problem

Thread Tools
 
Search this Thread
 
Old 12-03-2009 | 07:22 PM
  #1  
Loudpedal's Avatar
Thread Starter
Cruisin'
 
Joined: Nov 2009
Posts: 20
Likes: 0
From: Toronto, ON
'08 TL Fuel Guage Problem

I bought a CPO '08 TL a few weeks back, and I have a fuel guage problem.

Here are the symptoms:
- When full, the fuel needle will go no higher than 2 'notches' down from full.
- The needle flies back to half after 200km (120 miles). When I fill up, it will only take 20 litres (~4 gallons)
- Even at 1/4 full, the tank will only accept 36 litres (~7.5 gallons)

I have had it back to the dealer 3x times and they can not find any problem. At the last visit they replaced the fuel sender and it behaves exactly the same.

Anybody experience the same, or have any insight on this issue?
Old 12-06-2009 | 04:11 PM
  #2  
Loudpedal's Avatar
Thread Starter
Cruisin'
 
Joined: Nov 2009
Posts: 20
Likes: 0
From: Toronto, ON
*bump* ...anybody???
Old 12-07-2009 | 02:13 PM
  #3  
TonemanTLS's Avatar
LUV MY 2007 CBP TLS
 
Joined: Nov 2009
Posts: 230
Likes: 0
From: Montreal
na man sorry never had that issue, weird though could it be the gage in the cluster itself that's screwed, Dealer should fix this especially that the car is under warranty...
Old 12-07-2009 | 02:58 PM
  #4  
1islandparadise's Avatar
...
 
Joined: Dec 2009
Posts: 1,494
Likes: 10
From: Tampa
I am not sure about that but I bought my 07 TL-S 1 week ago and I have a "tighten fuel cap" light that turns on randomly. I am at the dealership now to see what they say. I have seen many threads on 3G TL's fuel electronic issues. I hope u get your baby fixed.
Old 12-07-2009 | 03:30 PM
  #5  
YeuEmMaiMai's Avatar
Suzuka Master
 
Joined: Sep 2006
Posts: 9,863
Likes: 435
most likely a faulty fuel sending unit. you can test the guage by applying the required amt of voltage that will result in a full reading. if the needle goes where it should, it's the sender, if not test wiring up to cluster for problems. if wiring is good then guage is bad
Old 12-07-2009 | 10:05 PM
  #6  
I hate cars's Avatar
Team Owner
 
Joined: Mar 2006
Posts: 20,172
Likes: 1,812
From: Bakersfield
Since they've already replaced the sending unit, I would start with connections and grounds.

What does your miles to empty read when you fill it up?
Old 12-08-2009 | 06:57 AM
  #7  
riomp300's Avatar
Advanced
 
Joined: Mar 2007
Posts: 81
Likes: 2
From: Matawan, NJ
Heres how to test the gauge cluster, see if it is working properly

https://acurazine.com/forums/3g-tl-2004-2008-93/needle-sweep-688940/
Old 12-08-2009 | 08:09 PM
  #8  
Loudpedal's Avatar
Thread Starter
Cruisin'
 
Joined: Nov 2009
Posts: 20
Likes: 0
From: Toronto, ON
Originally Posted by I hate cars
Since they've already replaced the sending unit, I would start with connections and grounds.

What does your miles to empty read when you fill it up?
Good question, never checked. The trip computer however, does seem to work correctly, as when I fill up around 'indicated' half tank (4 gallons), it shows 500 kms to empty (~310 miles).

Before they replaced the fuel pump/sending unit, they ran some tests (I would hope connections and ground), and found no issues.

I'm gonna try the gauge sweep that riomp300 posted. I'll let you guys know how it turns out.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SidhuSaaB
3G TL Problems & Fixes
18
05-30-2020 12:40 AM
LoneRonin
Car Parts for Sale
2
01-04-2016 01:03 AM
joflewbyu2
5G TLX (2015-2020)
139
10-08-2015 11:16 AM
Matthew Purpura
1G CL (1997-1999)
3
09-25-2015 06:10 PM
95oRANGEcRUSH
Car Talk
35
09-25-2015 12:50 PM



Quick Reply: '08 TL Fuel Guage Problem



All times are GMT -5. The time now is 05:55 PM.