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Generation 3 Pajero NM - NP Models 2000 - 2006

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  #1  
Old 01-09-12
AndreJ AndreJ is offline
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Default Fuel gauge problem

Hi
My name is Andre Joubert
I have 2001 Gen 3 Pajero 3.5 LWB
Very happy with it except 1 problem, my fuel gauge is working when it wants to, sometimes even 10 minutes after I started driving it starts to come alive then goes right up to the full position en slowly settles to where it should be, do you guys think this problem is in the float or the fuel gauge or the pc board behind the dials
Any help will be appreciated
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  #2  
Old 01-09-12
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Paj Paj is offline
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could be your fuel sender unit, my cars doing the same. i have a NL but i would presume they would use the same unit.

will most probably have a bit of shit on the touching surface or the wire may not have good contact. can be as simple as pull the unit outclean the sensing face and possibly if required bend the wire a touch to achieve good contact again.

will be doing this on mine tomorrow so hopefully fixes the issue.

cheers dan
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  #3  
Old 01-09-12
AndreJ AndreJ is offline
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Hi Paj
Thanks for the info , is it possible to do this without dropping the fuel tank
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Old 01-09-12
TRyan4 TRyan4 is offline
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Not sure about the petrol,but the diesel is accessed through a small panel on the floor behind the front seat on the left looking from the front of the vehicle, where the second row passengers put their feet,it's under the floor covering.
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Old 01-09-12
jjacer jjacer is offline
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G'day,mate there is a well known issue with the gauge cluster pc board on these models, although it usually seems to affect the temp gauge more so than fuel gauge but it has been known to affect both.
The fix is to have the board replaced by MM but this is quite expensive-what a surprise eh.The other way is to send the gauge away for repair-I was quoted $250 but the deal breaker was the 2 weeks it takes.
Either way it's a real pain but a well known issue all the same.Having said that it could be a problem with the sender which is of course in tank.
Funnily enough I just had my radiator flushed etc and the mechanic was dead certain it wasn't my gauges but just the sender unit-more wasted bucks later and shock , surprise it is still the gauge cluster issue.it is amazing how many Mitsu 'specialists' still don't seem to know about this very common issue and merrily go about replacing this and that at your expense to no avail.
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  #6  
Old 02-09-12
AndreJ AndreJ is offline
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ok , so this is what I did.
First remove the middle seats

Then remove the A/C vents from the carpet and the top cover plate for the fuel pump that sits under the seats.
Then rol up the carpet and you will find the cover for the fuel sending unit
about in the middle where your feet goes when you sit on the seats
Unscrew the cover and unscrew the sender unit , unplug and slowly pull it out.
you need to take off the metal plate to get to the thingy that goes up and down , I just cleaned it and sprayed some electro clean on the parts and then tested it to see if it works.
while testing move the flout up and down too see if you get different readings ( must be pluged in and car ignition on- not started)
you can then also test to see if your fuel light works.
That seem to did the trick , its working again 100%
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Old 30-01-13
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Catchin Jack Catchin Jack is offline
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Reviving an old post here but today while driving my diesel just stopped, no fuel warning light, and it said i had a quarter tank left but I was out of fuel, any ideas what it may be, sender unit maybe?

Cheers
Leo
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Old 30-01-13
Shano592 Shano592 is offline
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Could be a sticky float switch.

Mine is the opposite. Says empty when I have 20 litres still to go.
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Old 30-01-13
captain_paj captain_paj is offline
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Quote:
Originally Posted by Catchin Jack View Post
Reviving an old post here but today while driving my diesel just stopped, no fuel warning light, and it said i had a quarter tank left but I was out of fuel, any ideas what it may be, sender unit maybe?

Cheers
Leo
When you say "out of fuel" - how did you know? Did you check the tank, or was it based on having empty fuel lines?
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  #10  
Old 30-01-13
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Catchin Jack Catchin Jack is offline
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Added 20 litres, drove 1 minute up the road and filled up with 60 litres. I'd say it was empty but was showing a quarter tank left.

Leo
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