Vitz 2007 1kr engine vibration issue on AC and idle

[ahmadraza1008]

I have a vitz 2007, 1kr engine and i am facing extreme vibrations on AC in traffic and also some times i keep on accelarting car but car don't accelarates, and even brake pad gets hard. What could be the reason?

[pwuser166331039855]

Check the battery health. It seems when AC kicks at idle rpms then it take load from Battery which cause such vibrations & poor idle.

Usually battery shops has battery health checking meter and they check it for free.

[officialmusman]

Check spark plug and get done CAT cleaning for acceleration. For idle vibration, 1KRFE got vibaration but excessive vibration might be due to bad engine Mounts, fuel quality etc. Try to get done throttle cleaning and use OEM air filter not local one. And battery should be recommended Amp and in good condition as other member mentioned.

[ahmadraza1008]

Thanks, i will get it checked.
Also can you pls let me know that is this happens due to weak engine?

[ahmadraza1008]

I recently got checked sprak plugs, cleaned cat, installed new fuel pump. But issue was same. I will got other things checked that you mentioned. Can weak engine also cause this issue

[ahmadraza1008]

I will get it checked, but electrician told me a few days ago that its engine is week, but there are no as such signs of weak engine

[horticulturalist]

Weak engine has other signs, like smoke

[horticulturalist]

Why did you change the fuel pump? bcz of this problem??

[ahmadraza1008]

Yes

[pwuser166331039855]

installed new fuel pump.

fuel pumps works under certain pressure which is 60-70psi. its not difficult to check.
If the fuel pressure drops like 30-40psi or lower, then its OK to change the pump. But if pressure is 60-70psi, then there is no need to change the fuel pump.

[sardarg]

sir @ahmadraza1008 if the engine is consuming oil more then 1500 ml every 3500+ kms the only way to determine engine health is compression test - The difference in wet & dry compression values, is the health of engine. any value under 140psi means bad rings, valve seals etc etc.

[officialmusman]

Major reasons are engine mounts, fuel quality, air filter, throttle and CAT. As you mentioned about pick that's why I asked to check for plugs as well. Weak engine is also cause this but you need to do a smoke test for 1krfe to check this.

[ahmadraza1008]

Engine is not reducing oil, and there is no smoke coming out.

[ahmadraza1008]

Ok, thanks

[officialmusman]

If you can visit, try to go to Toyota GT Motors and get your car inspected. Vitz 1KRFE got vibration problem. Also try to use 30% octane in tank to see the difference. Good luck

[ahmadraza1008]

Ok, i will

[pwuser166331039855]

Also try to use 30% octane in tank to see the difference. Good luck

Please go through this thread when you have time.

Car missing issue

I have Honda city 2008 DSi model. The issue is my car giving jerks (jhatka) specially when it's standing and moved in first gear. I think something needs to be clean in car to fix this. Can someone guide me what's the best way to fix it. I don't want to go to shop and ask them for solution since they give solution which suits there revenue. Thank you

[officialmusman]

Sure thank you!

[horticulturalist]

I have almost the same bit of issue...

[ahmadraza1008]

Did you got it solved?