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Dj, ASE Certified Technician
Category: Toyota
Satisfied Customers: 1910
Experience:  ASE Master Tech, 30+ years in automotive repair.
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My 1990 camrys trans is slipping on reverse i just replaced

Customer Question

hi my 1990 camrys trans is slipping on reverse i just replaced the oil and filter it runs better going forward but i still slips going reverse what can i do
Submitted: 1 year ago.
Category: Toyota
Expert:  Dj replied 1 year ago.

Hello and thank you for trusting us with your question. I'm DJ.

When it's going forward, do the shifts feel normal or do they feel mushy?

How dirty was the filter and did the fluid smell burnt?

Customer: replied 1 year ago.
after the oil change going foward very smooth. the oil was very dirty but no burnt smell
Expert:  Dj replied 1 year ago.

Has any work been done on the engine lately?

Customer: replied 1 year ago.
Expert:  Dj replied 1 year ago.

Does the shifter feel like it's dropping into the detents properly? In other words, when you put it in reverse, does the shifter feel like it's solidly in reverse and not on the edge?

Expert:  Dj replied 1 year ago.

Has the transmission ever been rebuilt or replaced?

Customer: replied 1 year ago.
it feels solid
Customer: replied 1 year ago.
i only had the car for 8 months and in that time no rebuilt or repairs
Customer: replied 1 year ago.
are you there
Expert:  Dj replied 1 year ago.

There is a cable that goes from inside the transmission to the throttle body.

When you step on the gas, it pulls the cable, which increases the internal pressures in the transmission.

What I would like you to try is to adjust that cable and see if it improves or solves the problem.

This picture is for a Tercel, but it's the same. At the end of the boot, there should be a 1mm gap between the end of the boot and the metal collar when the throttle is all the way to the floor.

If it's less than that, adjust the two nuts to get it in adjustment.

If it's already at 1mm, adjust the nuts until it's 3 mm and test drive the car.

It should make reverse slip less or stop slipping. Let me know if the other shifts are too harsh.

Customer: replied 1 year ago.
ok i will check this out tomorrow its 1155 pm right now. how can i get back with you after i do this
Expert:  Dj replied 1 year ago.

This question will stay open until you get sick of me, I get sick of you, or we get the car working again. So just save this to your favorites.

I'll be back on tomorrow morning around 6am Pacific time.

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