delay in gear shift

[Asanka Pubudu]

There is about one minute delay in gear shifting at first start.It is an automatic transmission (Toyota corolla AE110 yom-1997). What should I do?

[Ted]

  On 4/24/2020 at 6:57 AM, Asanka Pubudu said:

There is about one minute delay in gear shifting at first start.It is an automatic transmission (Toyota corolla AE110 yom-1997). What should I do?

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Dear @Asanka Pubudu,

Check following tests and based on results of each test, I am giving tips you which should focus on ( 90% likely). 

1) Testing from N to R

1.1) By pressing break pedal, shift selector from "N" to "R".

1.2) Gear should be changed within 1.2 seconds.

If NOT, possible causes,

A ) Too low pressure in oil lines.

B ) Wear of the reverse clutch.

C ) Wear of the break of the first gear and reverse gear.

D) The clutch of the lower planetary series if faulty. 

 

2) Testing from N to D

2.1) By pressing break pedal, shift selector from "N" to "R".

2.2) Gear should be changed within 1.4 seconds.

If NOT, possible causes,

A ) Too low pressure in oil lines.

B ) Wear of the forward clutch.

C) The freewheel clutch No. 2 and the Clutch of the lowering planetary series are faulty.

 

Above are the recommendations of Toyota. So first off check whether your oil level is OKAY and Oil age is within the service period. If not either you will have to repair the gear or buy a reconditioned one.

 

 

 

 

[tilvin]

  On 4/24/2020 at 6:57 AM, Asanka Pubudu said:

There is about one minute delay in gear shifting at first start.It is an automatic transmission (Toyota corolla AE110 yom-1997). What should I do?

Expand  

When did you change the oil? Is it long time?

[Asanka Pubudu]

I already changed the Oil

[Asanka Pubudu]

  On 4/24/2020 at 9:52 AM, Ted said:

Dear @Asanka Pubudu,

Check following tests and based on results of each test, I am giving tips you which should focus on ( 90% likely). 

1) Testing from N to R

1.1) By pressing break pedal, shift selector from "N" to "R".

1.2) Gear should be changed within 1.2 seconds.

If NOT, possible causes,

A ) Too low pressure in oil lines.

B ) Wear of the reverse clutch.

C ) Wear of the break of the first gear and reverse gear.

D) The clutch of the lower planetary series if faulty. 

 

2) Testing from N to D

2.1) By pressing break pedal, shift selector from "N" to "R".

2.2) Gear should be changed within 1.4 seconds.

If NOT, possible causes,

A ) Too low pressure in oil lines.

B ) Wear of the forward clutch.

C) The freewheel clutch No. 2 and the Clutch of the lowering planetary series are faulty.

 

Above are the recommendations of Toyota. So first off check whether your oil level is OKAY and Oil age is within the service period. If not either you will have to repair the gear or buy a reconditioned one.

 

 

 

 

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I already changed the oil but still have the same problem in first start.when it heated disappear the problem 

[Ted]

  On 5/10/2020 at 5:32 AM, Asanka Pubudu said:

I already changed the oil but still have the same problem in first start.when it heated disappear the problem 

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Did you check all the tests? Is delay there for all tests?

[Devinda_Z]

@Ted could it be the valve body or shift solenoids? 

[Ted]

  On 5/11/2020 at 8:39 AM, Devinda_Z said:

@Ted could it be the valve body or shift solenoids? 

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According to the Toyota Repair Manual for his Auto Box, if negative observations received upon above tests, they are the 90% possible causes. I am sorry that is only what I can say.