The EGR System tends to get restricted or blocked with carbon after 100,000- 125,000 miles which will cause an emissions test failure for NOX. If the EGR system is equipped with an EGR temperature sensor it will trigger a Check Engine Light for improper EGR flow. The repair is to clean out the EGR passages and the EGR Temperature sensor. Our technicians tell this repair is pretty straight forward and takes about 1-1.5 hours. It is al...
Resources for the Repair and Maintenance of your 1993 Toyota Previa
1993 Toyota Previa
1993 Toyota Previa Problems
Over the time the exhaust gas recirculation (EGR) system may become plugged with debris, the oxygen sensor may also be getting slow or 'lazy' around this time. When servicing or cleaning the EGR system, it is a good idea to replace the oxygen sensor because it works in tandem with the EGR system.
At higher mileages, (125,000-150,000) the automatic transmission may not shift correctly. This can be caused by the throttle position sensor being out of adjustment or a shift solenoid needing to be replaced. Typically the transmission does not need to be completely overhauled.
It is important to regularly check the valve clearance as the exhaust valves may become too tight. This will lead to valve failures, which are expensive to repair.
A rough idle and even an emissions inspection failure for high HC and CO can be caused by improperly adjusted valves. Also, exhaust valves may become to tight which can lead to valve failures. Our technicians tell us that regular valve adjustment inspections are a must.
1993 Toyota Previa Questions and Answers
I just bought this van. It had been sitting a while (maybe 6 mos). It has a loud clunking noise especially at idle and starting off. It has gotten worse in the last few days. It also seems as if th...
vehicle was running fine,turned on the headlights and vehicle cut off. now headlamps don't turn on , hazard lights and fuel pump don't work either. all fuses in primary fuse box above ash...
where is the flasher /headlights fusible relay located?? headlights , safety flashers and horn do not work?
We have had and loved our ’93 Toyota Previa for about 8 years. It has 183,000 miles on it, and I am trying to decide whether to sell it or not. It has 3 problems that I know of.
1. Starter Moto...
1993 Toyota Previa Reviews
I have a 1993 Previa with 190,000 miles and still going strong. One of the last rear wheel drive minivans on the road. Very durable and outlast its contemporaries on the road. My two boys grew up with it and they are now driving it too. Great car!
I have two of these, my son has one. Best car on the road!!