Hi. Please help me... This old girl is beautiful, goes well and looks good in and out but last week, after working fine these past few years, refuses to go into overdrive. One day it was fine, the next morning when I went to work, it was running at over 4000 and despite pressing the OD button, not a change in revs or anything, except the light going off/ on.
I'm hoping its not going to cost me three arms & both legs to fix, because its attached to my heart. If I have to let her go, well, I will be sad. Please help me. Thank you everyone, in advance.
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Re: Celica 4WS, auto, 1990- overdrive not working
The fuse for the overdrive is the 15 amp "Gauge" fuse. Since the OD light is working, the OD system is getting the right power. Methinks that you have, at best, a seized or sticking OD solenoid. What I would do at this point is to take the old girl to a service facility, and treat her to a complete transmission flush. Not just changing the fluid, but a complete flush. This may clean the sticking plunger on the solenoid, and get you & her back on the road. At worst, you may need to change the OD solenoid. Not too awful expensive. Get her flushed, and post me back. Thanks.
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Your first option should be to check all the connections. Corrosion and
moisture can set in if the cars left unused for any length of time. Check your
fuses around the brake system; this could be a problem for grease losing, damage the axle in short time. Other posibility is one electricla switch or sensor bad.
The 4WS system is a fairly complex setup hence Toyota will probably
charge an arm and a leg for fixing any fault on it (also it is a ***
There are five main components, main motor, backup motor, speed sensor,
steering sensor and 4WS computer so it could be any of these, also add a
possible wiring fault on top of that.
You can carry out a diagnostic test to interrogate the 4ws management
fault code by bridging TC and E1 connections at the diagnostic plug
(situated next to the top of the passenger front suspension strut in the
engine bay). With these two connections shorted you should get a series
of flashes from the 4WS light on the dash when you switch on the
ignition. Each series of flashes represents a digit which can be looked
The 5sfe is notorious for distributor problems. You'll get correct resistance readings on the primary and secondary coils, but your spark looks weak. Should see a bright blue spark with an audible POP when sparking. On some 5sfe engines, the coils are located in an all-in-one pacakage inside the distributor. You'll know if you have this one if the only large spark plug type wires connected to the distributor cap count 4 and go to the 4 cylinders. There will not be a center wire coming from a coil. This is the distributor that has issues. I am on my third one now. Same symptoms every time. I know exactly what to change when it happens, and it fixes it every time. Luckily, It's only about $95 if you do your searching well enough. Good luck
also have 83 long bed toyota.....few yrs ago, sharted not shifting into od. started squirting wd40 into all the carb area linkage, and that seems to work for awhile. last time a week ago, it didnt work, so flushed auto trans and refilled w new fluid. didnt work. heard spark jumb so changed plugs and points, so thought that would maybe cause low vacuum, which might be a problem. that didnt work either, so looking for where i had squirted wd in the past, so i can pinpoint the problem. so now looking for helpe