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Transmission Problems


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#1 swamy

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Posted 06 November 2012 - 01:07 PM

Guys , I have 2001 Hilux surf with a 1KZ engine and 4wd transmission. whenever the vehicle comes to a stop. The transmission will ***** back into 1st gear. There is no smooth gear down.
What can be the problem here?

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#2 Parts-King

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Posted 06 November 2012 - 02:58 PM

Most problems with auto boxes are a lack of maintenance, I would check the fluid level and see what it looks like. It should be up to the level mark and a nice red colour, it is not worth looking for other problems until you eliminate the oil so best changing it to start off with

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#3 swamy

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Posted 06 November 2012 - 03:35 PM

Recently change the fluids, drain out the converter also., I put in original toyota transmission fluid. the level is good and the colour is good.

#4 Parts-King

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Posted 06 November 2012 - 03:41 PM

Then I fear you are out of DIY territory and need to seek advice from a specialist auto transmission expert. Try posting up on the Hilux Pickup OC site, you might come across a cause on there

Kingo :thumbsup:

#5 igormus

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Posted 16 November 2012 - 05:07 PM

Guys , I have 2001 Hilux surf with a 1KZ engine and 4wd transmission. whenever the vehicle comes to a stop. The transmission will ***** back into 1st gear. There is no smooth gear down.
What can be the problem here?


check with:
- solenoid control valves;
- transmission fluid level + check with filter

#6 surf007

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Posted 20 January 2013 - 02:58 PM

Would you be interested in selling your surf?

#7 bags

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Posted 08 July 2013 - 03:31 PM

I have a 94 3.0TD surf 1kz. the auto trans used to change gears smoothly @ around 2 & 1/2 RPM in each gear. now it moves from 1st to 2nd and 2nd to 3rd at around 3 & 1/4 and I have lost Over drive. I have checked the trans fluid, it's bright red and at the correct level. no earthing straps have been moved for any other work and there is no flash code from any of the dash lights. the issue occured about two days ago and only today have I lost O/D. what do you reckon??



#8 Parts-King

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Posted 08 July 2013 - 03:54 PM

As per post number 4. If the oil is good and up to the level, then as a DIY you do not have many options, you need to run some pressure tests. Take it to a specialist auto transmission company for further investigation

 

Kingo :thumbsup:



#9 bags

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Posted 08 July 2013 - 03:59 PM

before I commit hundreds of dollars to have a diagnosis by a specialist I might try a trans fluid change. What trans fluid do these models take? how many Litres? and how hard is it?



#10 bags

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Posted 09 July 2013 - 11:18 AM

Right, after making some calls this is what I have learnt. These wagons' auto trans change gear most effectively when the engine is warm...so, I was told to check the main thermostat to ensure my vehicle is heating to where it normally does, it does.

 

The next little gem was that maybe the temp sensor from the auto trans was loose or disconnected, tried to look but I don't know which of the 4 plugs is the one.

 

Off to the mechanic Friday, will let you know what the problem was, how it was fixed and what it cost. not sure how the pricing will translate from a New Zealand economy to a UK economy but ball park stuff may help someone.



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