Petrol nozzle tripping

[Mouse]

Guys, any of the E46 members face problem with the petrol nozzle tripping on auto hold at half tank when pumping petrol? My tank was almost empty and the nozzle trip when it reaches RM 60++, I pump again n put on auto hold as usual, but it trip again like its already full, trip about 4 times until I have to hold it manually, even hold manually also it trip. Something wrong with the nozzle or some sensor in my car?

 

[bibendum]

I experienced that b4 too but usually not up to half tank yet... I was wondering if the gas forced out of the tank causing the sensor to trip... :dunno:

 

[leakwoon]

never heard of tat

u try other station or other nozzle

if same

then ha1lat... ur car tank got issue horrr

 

[daan]

It must be faulty nozzle. There's a mechanical sensor on the tip of the nozzle to trip th enozzle once it's full.

 

[dvng]

Originally posted by Mouse@May 26 2006, 09:34 AM
Guys, any of the E46 members face problem with the petrol nozzle tripping on auto hold at half tank when pumping petrol? My tank was almost empty and the nozzle trip when it reaches RM 60++, I pump again n put on auto hold as usual, but it trip again like its already full, trip about 4 times until I have to hold it manually, even hold manually also it trip. Something wrong with the nozzle or some sensor in my car?

theres nothin wrong with the nozzle (theres no sensor) its just that you have some petrol at the outside of the inlet flap..this causes the petrol nozzle to trip thinkin its already full..next time make sure the theres no leftover petrol at the nozzle before inserting the nozzle into the inlet or accidentally pressing the nozzle before it is fully inserted beyond the flap..to prevent excess petrol dripping otside of the flap..

 

[Jipster]

always happens ...... some nozzles work better than others while some are so sensitive that it depends on how the nozzle is positioned etc etc..... maybe someone from the retail side of the oil and gas industry can shed some light on this little mystery of modern life

 

[fabianyee]

the position of the nozzle is important too to prevent tripping. Got to push all the way in and as straight as possible before u shoot... errr, I mean pump... If it's at an angle, most probably it'll cause tripping.

 

[Mouse]

hmmmmm... but just wondering y holding it manually also it trip (as if its full, but i am very sure its not). Will keep u guys update when i pump my petrol again the next few days, see if the same thing happen again (hope not) if it does again, what will be the problem?

 

[viewfinder]

Actually positioning the pump handle sideways will help to prevent tripping but then one can easily end up overpumping and petrol gushes out! My non-bmw car usually trip due to the tank design and I almost always hold it sideways (and watch out for liter pumped).

I believe the tripping mechanism is reverse flow pressure based but can't be sure. Tripping seems to occur always on hot days when there's lots of petrol vapor in the tank.

 

[3er]

Trick is NOT to squeeze the pump all the way. This is to prevent a rush of fuel which may cause splash back and the nozzle will trip thinking that the tank is full. Just half pressure or at the first click for auto hold will suffice. It may take a little bit longer to fill 60L but at least it doesnt get interrupted.

But contrary to fabian's experience, i find that not putting the nozzle in all the way helps too. But YMMV. Try all the various ways the others have suggested and do let us know your findings.

 

[wglee]

What I do is, upon tripping, I pull out the nozzle, and after about 5-10 seconds I put it in again and continue pumping till full.

From my own experience, what 3er said is also correct - don't squeeze to the max.

 

[Mouse]

well, i guess its common, but it never happen for the past 12 years while driving my iswara (guess bmw manja abit)

 

[valkryie]

The auto cut off technology in the nozzle has been perfected so it is most likely that the nozzle is faulty.

For an educational read:

1. How Gas Pump Shuts Off

2. When Nozzle won't shut off

 

[flash]

Originally posted by 3er@May 26 2006, 10:04 AM
Trick is NOT to squeeze the pump all the way. This is to prevent a rush of fuel which may cause splash back and the nozzle will trip thinking that the tank is full. Just half pressure or at the first click for auto hold will suffice. It may take a little bit longer to fill 60L but at least it doesnt get interrupted.

But contrary to fabian's experience, i find that not putting the nozzle in all the way helps too. But YMMV. Try all the various ways the others have suggested and do let us know your findings.

Very true.... happens to me and I am practising this now. I usually only stick the nozzle 3/4 way in and pump a half speed. Guess the design of our BMW petrol tanks cause a backflow which trips the auto mechanism to shut the flow.

 

[MeanStreak]

Originally posted by flash+May 26 2006, 11:22 AM-->QUOTE (flash @ May 26 2006, 11:22 AM)

 

[kl_mafia]

Hi there.. i work for one of major oil company in malaysia in retail dept. from what i know...

there is sensor in the nozzle. it stops fuel delivery when it senses liquid petrol and vapour pressure.

as mentioned by one of our friend here, he twist the nozzle sideways, which causes the vapour pressure to leak out and therefore hassle free petrol pumping.

what u can do if the nozzle keeps on tripping.

1) Leave on auto mode...if it trips, then remove the nozzle, and put it back... this releases the vapour inside our fuel tank.

2) Put the nozzle on a slower speed. this prevents liquid petrol from being splashed onto the sensor

3) Twist the nozzle sideways.


if indeed the nozzle is faulty, then help us by telling the retailer or call our customer service center. I can assure you that our people will call you within 5 working days.


however, please be careful not to twist the nozzle too much, as there is this mechanical features called swivel joint in the nozzle (connects the nozzle to the hose). this can break and causes the nozzle to be detached.


thanks gentlemen.

 

[daan]

KL Mafia,

I think we might be involved in the similar trade.

Anyway, most major oil company nowadays will give lump sum maintanince contract to contractors. What this mean is, the contractor will have a certain amount per hose, if there\'s no repair or replacement required, they will make more money. However, if there\'s any repair or replacement, it will be from the contractor\'s own pocket. As you can see, the contactors will try to minimize changeout of parts to keep their profit up.

Only when u compaint to the retailer, they will contact the facility management company who will in trun contact the contractor to rectify the complaints.

 

[2cents]

...if indeed the nozzle is faulty, then help us by telling the retailer or call our customer service center. I can assure you that our people will call you within 5 working days...

So, "us","our customer service center" and "our people" would be refering to...? :dunno: h34r: :blink:

 

[Lee36328]

Dear Mouse,

There is NOTHING wrong with your car. Nor is there anything wrong with the nozzle.

It trips often for BMW and Merc, but works fine for Japanese cars.

Here's what I do.

1. I do not insert the nozzle all the way in. I put it halfway in.

2. I do not latch the nozzle trigger at the maximum. Latch it about halfway.

Your car should fill up fine until full tank at one go.

Remember, if you insert your nozzle all the way in and pump at maximum speed, of course your nozzle will trigger before the tank is full.

Applies to both your car, and other things.

 

[kl_mafia]

Originally posted by 2cents@May 26 2006, 11:12 PM
...if indeed the nozzle is faulty, then help us by telling the retailer or call our customer service center. I can assure you that our people will call you within 5 working days...

So, "us","our customer service center" and "our people" would be refering to...? :dunno: h34r: :blink:

hi bro..


''us'' - oil company

"our customer service center" - oil company's Customer Service Center


"our people" - Retail Territory Managers/Executives/Area Managers


Thanks.