Question about 1993 Toyota Previa

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I have a 1993 previa, ran great when I got 6 moths ago started delevoping a ruff low idle after warm up. So I changed both oxygen sensors which help the mileage and in general but the low ruff idle still exist. Please help me out I need it. Thank you so much Kimberly s.

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Hi, the very first thing you should do now is to have the engine compression checked, it is possible that there is a loss of compression due to a leaking valve, have that done. You may also contact a toyota dealer, there was a special service campaign to replace headgaskets on these engines at no cost to you, have your VIN# ready when you call them to find out if the campaign has been done and if it applies to your truck.

Posted on Oct 09, 2010

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