Vibration In Engine Between 1500Rpm - 2000Rpm

[Podi Lamaya]

Hi Guys,

My car is a Toyota Carina Si MyRoad (mfd.1999) and currently it is having abnormal vibration between 1500rpm - 2000rpm. This happens mostly at the cold start and when the engine is heated up to certain level, this vibration issue disappears. Any idea what is causing this? Is there any good place to check the vehicle (apart from Toyota Lanka)?

Note: Engine mounts are in good condition.

Thanks.

Edited May 14, 2013 by Podi Lamaya

[Tharindah]

Hello,

if you can contact Dhammika Fernando on 0112694223, he will resolve your issue.

he is @ borella

[Rumesh88]

When was the last time a tune up including replacement of spark plugs and throttle body clean up was done?

[Podi Lamaya]

Last tuneup done by Toyota Lanka in December 2012 (6 months back). They replaced all spark plugs, throttle position sensor and also completed a full throttle body clean up + injector nozzle cleanup.

Edited May 14, 2013 by Podi Lamaya

[maheshw]

is this a automatic one ?

[Podi Lamaya]

Yes, it is an automatic gear box (not CVT). But I don't think it is a transmission issue. But I am not much in to Automobile stuff. So, no idea whether there is something to do with transmission. Anyway no issues with gear shifting. It is very smooth.

[Rumesh88]

Last tuneup done by Toyota Lanka in December 2012 (6 months back). They replaced all spark plugs, throttle position sensor and also completed a full throttle body clean up + injector nozzle cleanup.

Why did they change the TPS during the tune up? Did you get any problem last time too?

I assume you have run for around 5000km since the last tune up. Remove your plugs and see if they are carbonized. In an normal engine you would find them all with the same light brown tint. Other thing is get someone to measure the resistance of plug wires to see if any one of them is open.

[Podi Lamaya]

Went to Mr. Dhammika's engine tuning place at Cotta road and done some scanning + tuning. Let's see the outcome tomorrow morning at the cold start.

[Warlord]

Hi Guys,

My car is a Toyota Carina Si MyRoad (mfd.1999) and currently it is having abnormal vibration between 1500rpm - 2000rpm. This happens mostly at the cold start and when the engine is heated up to certain level, this vibration issue disappears. Any idea what is causing this? Is there any good place to check the vehicle (apart from Toyota Lanka)?

Note: Engine mounts are in good condition.

Thanks.

Even D*mo is rather good. Mods, pls delete this post if you feel it is advertising. Now re: the prob can I know the idle RPM ?