Have Toyota Questions? Ask a Mechanic for Answers ASAP
Hello...welcome and thank you for using Justanswer.
Is the check engine light ON or does it blink when you feel the loss of power ?
Have you try to scan the vehicle computer for trouble codes ?
It sounds like your engine is misfiring (shaking) one of the cylinders is not work ,that is why you loose power.
Do you have the 4 or 6 cylinders engine ?
Let me know.
Hi there...as the first step I would scan the engine for trouble codes ,this will tell you which cylinder is not working and also why is the check engine light coming ON.
Bad ignition coil , spark plug (already replaced) ,vacuum leak or a bad injector are all good possibilities and in worse case a low cylinder compression.
Like I said first thing you need to find out is , which cylinder is not work and then check all the possibilities.
You can drive it for short periods of time or short trips , I would not drive it on long trips once a misfiring could ruin you exhaust cat and also burn the cylinder valves.
If you don't have a scanner , you can drive it to any major auto parts store and they will scan it for you at no charge.
If you find out the trouble code ,just bring it to me and I will tell you the next step to fix the problem, of course if the code is for a misfiring we need to go through everything I mentioned above.
Well if it is not a really bad misfiring ,like a dead cylinder ,you should have no problems either way you go.
Good luck .
Please rate my answer if I have helped , ask for additional info (no additional charge) if needed.
Than you very much.