Altis X 1.6 AT Switch off while driving

[ali199]

Altis 1.6, 2021 model, 31000 on ODO meter, engine oil changed recently, plugs, throttle body and catalytic converter were cleaned.

Two weeks ago I was going to Islamabad on M2 while in Salt Range, at 11PM car suddenly turned off while driving, no check engine light is on. I tried to start but after starting it got switched off again within a second.

Tried different tricks, like opening fuel tank lid, shaking car, knocking fuel tank with plastic bottle with the hope that if there's any debris or anything stuck with fuel pump would get off but it didn't work.

Motorway policy car was patrolling and we asked for help, they called mechanic and he removed fuel pipe from engine, gave self and then put back the pipe and the car now started. He said fuel pump was heating, get it replaced. It took almost 30 minutes for since the car got off.

Since then, there wasn't any issue but yesterday, while driving, at 40KM/h RPM dropped for a split second, I accelerated and RPM became stable, as if the car was going to switch off again and my acceleration stopped it from switching off.

Please suggest what should I do? Can this be clogged fuel filter? Faulty pump? Should I claim warranty? If there's faulty pump, can this be replaced free like what they did with 2017-2020 corollas?

[pwuser165176643628]

@xulfiqar

[arslan.v8]

Take it to Toyota for a diagnosis.

[Xulfiqar]

Does this car have a tracking system?

[ali199]

Yes, We called the company and they said no issues from their side. They said if it was tracker, starter motor wouldn't work.

[affanhaq94]

You may already have, but I would ensure that your battery connections are clean and tight. Might as well also check your battery to ensure it's in good health.

Also, make sure all your fuses/relays are tight. This may not be the cause exactly, but at least you can rule out loose connections/simple things on your own before you dive a bit deeper into diagnosis. Good luck and hope your issue gets solved with ease inshallah!

[mani_aryan]

before diving deep into the problem you can get an easy diagnosis by checking fuel pressure. go to a mechanic and ask him to do a pressure test on your fuel pump, he will remove a pipe and attach it to his guage. if its low pressure its an easy fix, take the pump out clean its inlet, check motor and electric connections. clean the tank of debris. its 2021 model shouldnt be a faulty pump so early.

[engnr.mubashir]

Check whether immobiliser system is working or not similar issue we have faced on friends wagonR and later found that immobiliser that went out of calibration and we got it done.

[hash4u]

Can this be clogged fuel filter?

yes

Faulty pump?

blocked filter can eventually fail a pump

Should I claim warranty?

if warranty not void for any reason this should be covered

[Xulfiqar]

Why not take it to a real proper shop who dont rely on shoot a part and pray?

There can be many issues, it can even be a malfunctioning tracker installed relay. (Specially if you lost the engine check lamp on starting)

Tracking companies in Pakistan hire nitto tape ustaad electricians who install scrapped trash in your cars and charge you through the nose.

[crema]

Thats right, the tracker use engine kill function by disconnecting the FP, to acomplish it they use shitty wiring with overlapping joints. The wires also get pressed against sharp steel of the body causing such malfunctions.

[mani_aryan]

nitto tape ustaad

well described.

[engnr.mubashir]

Any updates on your issue?

[haseeb.basharat]

Why you're not going for a warranty claim?

[ali199]

I went to dealership and they said to call bank and have the tracker remove for a week, drive in those 7 days and if there's still an issue, they'll see if warranty can be claimed.

They were sure that the tracker is doing something without even opening or checking fuel pump.

[Xulfiqar]

hahaha

exactly man!

[haseeb.basharat]

[quote="ali199, post:15, topic:3008279"]
went to dealership and they said to call bank and have the tracker remove for a week, drive in those 7 days and if there's still an issue, they'll see if warranty can be claimed.

They were sure that the tracker is doing something without even opening or checking fuel pump.

If issue is still there then dealership will not claim warranty as you installed tracker.
Your tracker is located near your rear speakers, and wiring is located on left hand side door foot panel.

[ali199]

I know the location of tracker and it's not where you think it it.

[Xulfiqar]

any half decent mechanic can find a tracking unit on a car, They used to install it behind the gauge panel on some cars and sometimes in the A pillar, some were tucked into the padding on the firewall, some behind the dash fuse block, some were under the center console.

Point is that its extremely easy to trace out (less than 15 minutes). Back when I was in Pk, I didnt even care for it when such a car came in and simply connected a jumper harness to the ECU plugs and provided the missing ground to test if the fault was the cars own electric system or the hack job called the tracker.

The customer then had to fight the tracking co. to fix their scrapyard parts (relays) which would fail.