Automatic transmission

[maccastime]

I require a service on my Isuzu Highlander Auto Transmission,Have been to Isuzu but they do not understand what i want done,the last time i requested this they added a drop of oil into the box??
The bands are slipping,i require the pan to be removed bands adjusted new oil etc.
Does any kind person know of somewhere in Hua Hin that could sort this for me?
If so any idea of cost.
Many thanks.

[Nereus]

Be careful who you let loose on this! Go and ask Pichai at "L Service" opposite the Palace. He may know where to send you if he cannot do it.
Many "service" centres are reluctant to touch auto trans, either because of a lack of knowledge, a lack of the right tools, or both!

How many miles / Km does it have on it? Is the oil discoloured / smell burnt? If the bands have been slipping for any length of time all the crud from them will have gone right through the hydraulic control system, and after disturbing the trans by working on the bands, they very often fail completely after a few thousand Kms. As you may know, it is not possible to drain all of the fluid out of the system without completely dismantling it, including the torque converter and any cooling lines and radiator.

With my Land Rover I regularly (25k Kms) have a "Wynns" flushing service done on it. This method removes about 95% of the old fluid, including the torque converter and cooler.
But it is of no use if the bands are already worn.

[maccastime]

Many thanks for the Reply.
Will go and have a chat with Pichai,it has about 90,000k.m on the clock.
It has started slipping through the changes,sometimes fairly slow,so i need to get it looked at quick.
Oil colour is still ok.
Was wondering what are the bands made of?
Have had trannys serviced before in Australia,for around $100,but not sure of a price range here.
If i am unable to get it sorted i may head back to Isuzu,hopefully track down the lad in the white shirt black strides who speaks fairly good english,and see if they are able to check it for me,failing that will take the better half with me,she may be able to have them understand what i require.
Many thanks for your reply Nereus.

[Nereus]

I do not know what the Japs use for band material, but usually it is some form of composition similar to brake pads / linings.

At 90k Kms the bands should not be worn. If it is sluggish changing it sometimes points to crud in either the governor, or the control block itself. I am assuming a hydraulic control, rather than the more modern electronic control, of which I am not familiar with. They still use hydraulics, but the control is electronic solenoids, rather than direct oil pressure.

It may well benefit from a "Wynns" service, but as far as I know there is not one in Hua Hin. I think that the last one I had done in Bangkok was around 4 /5,000 Baht including oil and additives. They usually also have a "filter" of some description in the system, but I regard them as more of a "screen", than an actual filter, but the Japs may be different. Be wary of anyone telling you that all it needs is a new "filter"! Allowing this to be changed will definitely lead to further problems, without either a flush, or a complete strip down.

[maccastime]

I do not know what the Japs use for band material, but usually it is some form of composition similar to brake pads / linings.

At 90k Kms the bands should not be worn. If it is sluggish changing it sometimes points to crud in either the governor, or the control block itself. I am assuming a hydraulic control, rather than the more modern electronic control, of which I am not familiar with. They still use hydraulics, but the control is electronic solenoids, rather than direct oil pressure.

It may well benefit from a "Wynns" service, but as far as I know there is not one in Hua Hin. I think that the last one I had done in Bangkok was around 4 /5,000 Baht including oil and additives. They usually also have a "filter" of some description in the system, but I regard them as more of a "screen", than an actual filter, but the Japs may be different. Be wary of anyone telling you that all it needs is a new "filter"! Allowing this to be changed will definitely lead to further problems, without either a flush, or a complete strip down.

Thanks again Nereus,i will advise how i get on.

[maccastime]

I do not know what the Japs use for band material, but usually it is some form of composition similar to brake pads / linings.

At 90k Kms the bands should not be worn. If it is sluggish changing it sometimes points to crud in either the governor, or the control block itself. I am assuming a hydraulic control, rather than the more modern electronic control, of which I am not familiar with. They still use hydraulics, but the control is electronic solenoids, rather than direct oil pressure.

It may well benefit from a "Wynns" service, but as far as I know there is not one in Hua Hin. I think that the last one I had done in Bangkok was around 4 /5,000 Baht including oil and additives. They usually also have a "filter" of some description in the system, but I regard them as more of a "screen", than an actual filter, but the Japs may be different. Be wary of anyone telling you that all it needs is a new "filter"! Allowing this to be changed will definitely lead to further problems, without either a flush, or a complete strip down.

I apologise for annoying you on this,i have checked the oil on the dip stick again and yes it is nice and clean,no burnt smell,i mentioned my problem to a lad from the u/k over here on holls,he mentioned that they maybe able to adjust the bands without dropping the pan etc,do you have any info on this.
Thanks again Nereus.

[Nereus]

No problem. Anything is possible, but I doubt it. As mentioned, I am not up with Jap autos, but it is definitely not possible with ZF or BW. Bands are not something that need adjusting regularly, so I see no point in having an external means of doing it. I really think that the problem with yours is more related to hydraulic pressure, rather than adjustment of the bands. But having said that, what ever the cause, it WILL lead to worn bands and / or clutch packs if not addressed.

Have you looked around the Internet to see if there is any known problems with the model that you have?

[maccastime]

No problem. Anything is possible, but I doubt it. As mentioned, I am not up with Jap autos, but it is definitely not possible with ZF or BW. Bands are not something that need adjusting regularly, so I see no point in having an external means of doing it. I really think that the problem with yours is more related to hydraulic pressure, rather than adjustment of the bands. But having said that, what ever the cause, it WILL lead to worn bands and / or clutch packs if not addressed.

Have you looked around the Internet to see if there is any known problems with the model that you have?

I had a check underneath,and there is no sign of adjusting screws,so looks like all must be in the box.Have been checking the net,but have not found much to assist at all.
Thanks again i will keep you posted.