1994 Toyota Previa Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1994 Toyota Previa

1994 Toyota Previa Problems

Failed Emissions Test Due to Blocked EGR System

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 also wise to verify the EGR system components i.e. the Transducer, EGR Valve and VSV Solenoid at this time.

Loss of Power on Highway Due to Internally Leaking Fuel Pulsation Dampener

A loss of power on the freeway may due to an internally leaking fuel pulsation dampener. This commonly occurs on higher mileage vehicles.

Air Flow Sensor May Fail at Higher Mileages

At higher mileages (125,000+) the mass air flow sensor may cause the vehicle to idle rough, run rich and even stall. It is recommended to replace the mass air flow sensor with a factory unit because the aftermarket units have very mixed results.

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1994 Toyota Previa Questions

Can oil leak into cylinders thru intake manifold? misses on start then smooths (1 answer)

out oil level in reservoir dropping. also appeared to be coolant coming out of exhaust(white smoke)replaced water pump now no loss of coolant but oil level still dropping.

1994 precia dx with 165000 miles failed 25 miles/hr HC smog check. Any fix idea! (1 answer)

I have new spark plugs, new wires, new distributor cap, new air filter, oil/filter changed. Could It be that the Throttle position sensor is worn out and affecting my timing advance and increase my HC. The NoX is below avg.

how do i no if the therostat ,sensor,or radiator could you help me. (1 answer)

the van runn's hot if you drive the van to long

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1994 Toyota Previa Reviews

I have had this car for only 3 1/2 yrs. It had high mileage but we knew it would still lsat a little longer. I was in desperate need of a bigger vehicle because my family grew unexpectantly. I absolutely love my van. I have only had minor repairs that were routine maintenance. (tires,oil,lightbulb out) I am at 243,000 miles and its still going strong. Hope it will keep this up for at least anot...
Great car, over 240,000 miles on it now, and runs almost like new. There are little problems here, and there.

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