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Toyota Repair/Sudden shaking, jerking, loss of power.


My 1991 Toyota Previa has 270,000 miles and is like an old Timex watch "it takes a licking and keeps on ticking"...that is until today. I allowed my  SIL to drive it and while on the Interstate it suddenly started jerking, jumping, shaking and losing power and unable to go any faster than 45 miles an hour. He was able to get it off the Interstate and parked somewhere safe until I can get it home this weekend. Do you have any idea what the issue or issues might be? I've had this van for about 10 years and when I bought it there was a loud rattling noise coming from underneath it and it still makes the same noise. No one has been able to find the reason for the noise and it has not interfered with the performance; just sounds bad.Don't really think its related to the currant problem after all these years but did want to mention it. Thank you for any help you can supply.

Hello, the rattling noise is typically loose baffles inside the catalytic converters and is probably not related unless the baffles finally came loose and clogged exhaust gases. Other than that it's hard to say what caused the symptoms you mentioned, possibly a misfire, bad spark plug, distributor cap, rotor ,let me know when you get it back and we can continue from there.

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Ted Ritter


I have more than 28 years experience as toyota technician, I will be able to answer most questions related to the Toyota product line up to the present year models,I am located in the US but welcome questions from other regions of the world. When asking a question please provide specific information: year,model, engine,transmission information. Provide as much information as possible including a brief repair history if possible. I have been a volunteer here for more ten years an have answered over 16,000 questions helping Toyota owners with their problems and save thousands of dollars without any compensation, some of my answers are published on many other websites including google and various automotive forums. DONATIONS ARE VERY MUCH APPRECIATED, IF YOU HAVE RECIEVED HELPFUL INFORMATION PLEASE MAKE A DONATION. AS OF TODAY (JULY 22, 2014) ALL REQUESTED GRAPHICS, ILLUSTRATIONS, DIAGRAMS, PHOTOS, WILL REQUIRE THE MINUMUM DONATION UP FRONT.


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