Hi. I have Toyota Echo 2000(90,000 km on it) and was very happy with it until it started to misfire. One morning I got off the highway and stopped at traffic light. My car started to shake like it worked on 3 cylinders. I switched on parking and it was less. Then after I put on drive and it started to shake again. When I took off everything was ok. I called my mechanic and explained everything. I thought it was related to changing donut gasket which he did one day before(the old one was burned out in one place and didn't sound good. When he install the new one he pried big screwdriver against oxygen sensor. I thought he damaged something in that area). He sad that everything was ok sense CHECK ENGINE light didn't come on. Then after 3 days it happen again in same situation (off highway). He suggested to replace spark plugs. I did it on my own. When I did it I did experiment. I started engine with one coil off. It did exactly the sama shake and CHECK ENGINE light didn't come on. Car was not doing any shakes for 10 days and today started in same situation (off highway). Mechanic doesn't want to run computer check because light didn't come on. He says that CHECK ENGINE light triggers computer to make record of problem. He suggested to drive it till it starts doing that more often or light comes on. What do you think? Is everything true he says? What should I do? Car runs good and idles good.
- posted
19 years ago