Yesterday my engine light went on. I noticed when I put the D on gear while the vehicle stop and it starts trembling.
I replaced the sparks bulbs 6 months ago but not the rear ones. Could that be the cause of the problem?
Probably not. The Denso iridium spark plugs are good for well over 100,000 miles, and on a 2000 I can see that would not be unreasonable. But after 6 months, that I don't see how it would suddenly cause a vibration, or 'trembling'.... If the plugs are over 100,000 miles, you do need to go that next step and replace the rear ones, I fully understand they are difficult. But use only Denso iridium. Meantime get an OBDII scan to find out why the CEL is on, and eliminate a ton of guesswork.
Search Toyota Sienna Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Toyota Sienna Experts