Cultus vibration issue

[umerhanif3]

AOA everyone, i have cultus 2006 VXL, engine overhauled and engine mount replaced 6 months ago, i am facing a vibration issue since i buy a cultus, when i start a car engine vibrate/Jerk RPM drops then i accelerate for 1 min to get engine hot then RPM goes to 1000, but engine vibrate/jerk dug dug dug noise in cabin, if i open a window dug dug noise get low but feels the vibration dashboard jerking steering jerking, drive in 1st gear when release the clutch engine jerking its need more accelerator to push fwd, car become smooth in speed no isse, carburetor tuning/butterfly repair 3, 4 times no luck, different mechanics telling different issue, one saying carburetor need tunning, one saying ur engine mount is hard, one saying the vacuum issue, other saying there is head and value problem, i want a expert advice u guys wat to do, please help.

[tintin1]

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[umerhanif3]

Shell 20w50 , Red bottle

[ibne.ali.18]

Probably the RPM stability issue...

[billublack]

Check the vacuum pipes, i had the same problem and found that one of the vacuum pipe was leaked.
And yes, most of the times this is carburetor issue. I will recommend instead of repairing it again and again, just replace it after 1 or 2 services. You wouldn't have to worry for next 3 - 4 years at least. 20K for 3 - 4 years is not a big deal.

[umerhanif3]

Thanks for reply, Carburetor tuning wala saying that your carburetor is ok no need for tuning and replacing, i ask him for the issue so he is saying k i will try once again with replacing the slow jet, 3 to 4 mechanics checked the vacuum pipes saying no issue from vacuum, i think there is vacuum issue, is there any workshop or mechanic u guys know in karachi where they proper check these type of issue with any device or experience,

[tintin1]

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[umerhanif3]

hmm may be because car startup with very low RPM, where is choke sensor located?

[tintin1]

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[saboor73]

There is no au5 chock sensor there is a manual auto chock on carby cultus which works by taking heat from coolant

[capsat]

flush engine oil to 10W-40 change oil filter.

goto Jamil Autos 021 34761699 / 0300 223 7538 at Shahrae Quaideen. explain the problem and ask them to check for ignition timing

[ibne.ali.18]

Im also concern about it coz my enfine also viberates alot

[umerhanif3]

Thanks capsat , i will go to Jamil autos coming saturday, let c wat they do, then let u know.

[umerhanif3]

Thanks capsat , i will go to Jamil autos coming saturday, let c wat they do, then let u know.

[bravo_khi007]

only carburator vaccum issuse .check vaccum pipes settings

[pwuser159517666054]

Pls confirm your problem is resolved same problem in my car pls advice