1990 Toyota Tercel Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 Toyota Tercel
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1990 Toyota Tercel Problems
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.
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.
The ignition coil inside the distributor may fail. Our technicians tell us this may result in a hesitation on acceleration, especially when the vehicle is warming up on cold, rainy days. The pickup coils inside the distributor can also fail and cause a no-start condition. There have also been some failures of the radio noise suppressors inside the distributors, which can short out. Our technicians recommend replacing the whole distributor with a complete, genuine Toyota distributor if any of its components fail.
1990 Toyota Tercel Questions
Took of distributor cap orange ish spark between coil and rotor, won't travel to spark plugs. Bought new cap wires and plugs still nothing, could the coil or igniter be bad?
i have a 1990 toyota tercel. when i turn it on the engine starts making a knocking noise and continues faster if i hit the gas. i took off the header and looked at all the piston rods and everything seems to check from what i can see. oil level is fine and gas is at a quarter tank. Please help.