Suzuki carby cultus fuel pump issue

[123rfaa]

Hi Fellas,

I am having a strange issue with the car i was going on a long route to Lahore and car started missing i went to Lahore and in city it started working fine but when i took motorway it started the same problem again i was sure something is wrong with the fuel because i checked the wiring and everything was good on that side i got it checked from a mechanic and he said the fuel pump is faulty as the fuel filter is 100 percent ok he showed me a used fuel pump which was rusted i was sure it's not gonna work, i decided to come back on that same missing which was a nightmare the car went to halfway fine with a little bit missing but on the hilly areas it started same issue and at a point it just stopped wasn't even starting at all. i came back to rwp and got the fuel pump replaced as my mechanic also said the fuel filter is good fuel pump needs to be replaced which i got a china one as the kabli one wasn't working the car worked fine for two days and when the fuel level dropped to almost the 4rth quarter it started the same issue i asked my mechanic to change the fuel filter which when he took out was clogged as hell totally black and i was going nuts that a 150 RS fuel filter was all it was so after changing it the car worked fine for 5 days but today when the fuel level dropped to same 4rth quarter the issue is here again. Also the fuel tank is fresh and clean as it can be. What can be the issue now? is it the pump not working fine not sucking the petrol on low levels? i researched a bit and found that the pump that comes in mitsubishi works fine shall i go for that one? or what else should i check?

[capsat]

check for any seepage over fuel lines & buy a suzuki genuine fuel filter.

[123rfaa]

No seepage under it cuz i checked it my self the last time when the mechanic was working. Fuel filter sure i'll get that changed again but what do you think about the issue after the petrol is dropped after a certain level?

[capsat]

if you park car on street or in some shared compound you are victim of fuel theft, very common these days by car cleaner boys for parking washing in business districts

[123rfaa]

hmm could be this issue but in that case the gauge would have been dropped but it is not dropping it shows me petrol is there around 10 liters.

[sajjad76]

Check and replace fuel tank breather rubber pipes.

[123rfaa]

Okay i'll get them changed and for that we have to remove the tank again? i think that's on the top side of tank.

[123rfaa]

i told my stupid mechanic to check that as well but his reply was typical pakistani mechanic reply o ni gg iska msla ni hai ye ni hota kharab i know there is a filter type thing on it too will that be clogged? or what to check in that breather pipe?

[sajjad76]

In my 2004 carbi Cultus having same problem, breather pipe was almost choked. Simply replacing this pipe, problem was solved.

[123rfaa]

Ok thanks for sharing your experience, and to get it replace do we have to remove the tank?

[123rfaa]

another thing when you had this issue when you removed the tank cover is there any gas coming out? could that be an issue.

[sajjad76]

Same gas issue + fuel tank must be removed.

[capsat]

purge valve is dysfunctional if pressure is released when cap is removed

[123rfaa]

Update:
My Mechanic was busy so i wasn't able to get anything changed out yet so all these days i am keeping my fuel tank filled up more than half and there aren't any issues everything is working fine even i went to Nathiyagali yesterday and car was running fine.
There is no pressure release if the cap is removed i can smell a little amount of gas but nothing like a pressure release sound
Two days ago same thing happened fuel went upto the 4rth quarter and the car just stopped in the middle of the road i opened up the cap and from the tank there was a weird smell like unburnt fuel i checked petrol pipes and there was no petrol coming in i had extra fuel in a can poured it in and still no petrol coming in after struggling for a while i sucked a little bit and the petrol started flowing like a charm i connected the pipes and car started without any trouble.

Is Please advise if this is any other issue or just the same breather pipe issue. I just need to make sure if there is anything else that needs to be checked and changed too i'll get everything replaced once for all.

[123rfaa]

Bump

[mjahanzaibqamar]

Having same issue. Got the filter changed, pump changed, but the same problem persists. By the way I'm using the chinese fuel pump which is fitted near the engine rather than in the tank.
Can that be a problem, that it heats up and ithe fuel pump stops working?

[123rfaa]

100 percent that is the issue that i was facing too finally i got a japanese fuel pump of HKT brand in 5500 from rwp saddar wasim autos and Alhamdulillah it has been working fine without issues.

[pwuser157223660331]

When fuel pump is dipped in petrol it remains cool and keeps working. But when level of fuel drops it heats up and stops working. This can be the cause of Chinese fuel pump not working.
The external fuel pump also heats ups and stops working if ac is on and radiator fan is working auto. Pouring some water brings it to life.

[mjahanzaibqamar]

You were right. The external fuel pump is pathetic when it comes to running the car on AC. Plus Karachi's temperature is enough to get the pump overheated quickly.

[pwuser171224744084]

Where this breath valve located I'm facing same problem