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Thread: New EFI Mehran Missing Problem

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    Default New EFI Mehran Missing Problem

    I bought a new mehran 2 months back and now its Odo shows 7550 Km. Tuned twice from Suzuki Texila motors. Every thing is fine and smooth ride till now. only problem is that when i drove car with ac on all time for 2 3 hours it start giving jerks... jhatky start. some kind of missing .. this only happen when i accelerate car from 1st and 2nd gear... people in suzuki checked thoroughly and said no problem observed.. Help please.. i never faced any issue like this before..
    Ac on/off dono time same problem hy.. as soon as I put in 3rd gear jerks gone and ride smooth again....
    slow n steady wins the race..

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    Quote Originally Posted by turbo_charge View Post
    Today i was going to murree with kids .. while reach barah koh there was a big traffic jam.. ac was on car started missing in first gear.. have to push hard on gas pedal ... parked car at side and open fuel cap.. some gas vent from cap like we open coke bottle.. but problem remain same..
    That sound was due to vaccum created in fuel tank for sure your car's fuel tank is vacuum locking

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    Quote Originally Posted by turbo_charge View Post
    My car is driven only 7k Km.. Jhatka only start in first and 2nd gear .. as soon as you to 3rd all vanish and again you find a smooth ride.. no issue in high speed..
    You should have told that earlier here. If car gets smoother on higher gear, then it is not the issue of fuel pump. If it was, car would keep jerking and loosing speed even when it is in higher gear.

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    Quote Originally Posted by turbo_charge View Post
    Sir, i had mehran for many years.. never face a problem like that.. i drove that to 5 hours non stop.. no issue..
    This new EFI engine is crap.. no matter how much i drive.. it happen only when its too hot outside and i am in low gears..
    Did you check your car without AC. Does it keep happening when AC is off?

    By the way, how much hard is the jerk? Does it feel same like the jerk that occurs when clutch is quickly released?

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    Quote Originally Posted by saboor73 View Post
    That sound was due to vaccum created in fuel tank for sure your car's fuel tank is vacuum locking
    Well he told that even after opening the cap, car still kept taking jerks. Problem lies somewhere else.

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    Try this trick as well. Buy new fuel cap from market (not from 3s), put that and drive and test. That cap won't be expensive.

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    Quote Originally Posted by ch.talal View Post
    You should have told that earlier here. If car gets smoother on higher gear, then it is not the issue of fuel pump. If it was, car would keep jerking and loosing speed even when it is in higher gear.
    Yes .. smooth on high gears .. even i went 120 on motorways while missing in low gears.. only when it get hot
    slow n steady wins the race..

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    Quote Originally Posted by ch.talal View Post
    Did you check your car without AC. Does it keep happening when AC is off?

    By the way, how much hard is the jerk? Does it feel same like the jerk that occurs when clutch is quickly released?
    With or without AC problem remain same.. and jerk is hard .. jb b jhatka lagta i have to push clutch control car .. its like jb bike sy fuel end hojye r jhatky marti ,.
    slow n steady wins the race..

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    Quote Originally Posted by ch.talal View Post
    Try this trick as well. Buy new fuel cap from market (not from 3s), put that and drive and test. That cap won't be expensive.



    After market fuel tank wont be air tight and will let fumes escape from tank.. well i`ll give it a try .. i was thinking the same..
    slow n steady wins the race..

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    Quote Originally Posted by turbo_charge View Post
    After market fuel tank wont be air tight and will let fumes escape from tank.. well i`ll give it a try .. i was thinking the same..
    fuel tank air locks
    i changed the tank with an after market one and now the problem is solved.
    Just Do It Your Self!!!!!

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    U change the tank or fuel tank cap???


    Sent from my iPhone using PW Forums

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    Quote Originally Posted by umarkhan1 View Post
    fuel tank air locks
    i changed the tank with an after market one and now the problem is solved.
    Change the Tank?? Seriously!!!!...
    slow n steady wins the race..

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    my mehran have same problem.
    and i feel to guilty to drive it as when it jerks (which are too hard ) people think iam a bad driver
    FeeL YoUng DriVE YoUnG......

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    Quote Originally Posted by COOLTAHIR View Post
    my mehran have same problem.
    and i feel to guilty to drive it as when it jerks (which are too hard ) people think iam a bad driver
    Yar.. our company lease 3 suzuki mehrans this year.. 2 of them have same problem... one is mine... itni zor ka jhatka lagta log smjty new driver hy ..
    slow n steady wins the race..

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    This is pathetic. Suzuki the stupid company only knows how to steal money from people. If this problem is arising in Mehran for years, why are they still producing this car without fix this problem!

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    Quote Originally Posted by ch.talal View Post
    This is pathetic. Suzuki the stupid company only knows how to steal money from people. If this problem is arising in Mehran for years, why are they still producing this car without fix this problem!
    I think i was the only one who is facing this problem.. point is that they still dont know how to overcome with this issue.. still no diagnose.. they change complete wiring and fuel pump of a car but problem still same..
    slow n steady wins the race..

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    Quote Originally Posted by turbo_charge View Post
    I think i was the only one who is facing this problem.. point is that they still dont know how to overcome with this issue.. still no diagnose.. they change complete wiring and fuel pump of a car but problem still same..
    Ask them to change your fuel tank this time

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    Try run car with open fuel cap.... vaccume problem check //

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    will do all trick in coming days.. for time being weather in ISB is not that hot.. car is running smooth no jerks.. let wait for long run and hot weather to check ..
    slow n steady wins the race..

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    our awaam is sheer stupid including myself , buying a 30 years old car and bearing problems in it which even company is failed to rectify
    FeeL YoUng DriVE YoUnG......

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    This is so stupid they can not even diagnose this problem... 😐

    Sent from my SM-G530H using PW Forums mobile app
    slow n steady wins the race..

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