bwsy2002

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About bwsy2002

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  • Toyota Model
    Prado TZ
  1. How To Use 4Wd?

    Dear car gurus, recently I started to explore more about the function of a 4wd system. As mentioned in other thread, I own a toyota prado TZ 3.0 and after searching from the internet, I learn that this is a full time 4WD vehicle (4wd come with differential lock). The 4WD has 4 shifts: H, HL, N, LL and comes with standard auto transmission system (P, R, N, D, 2, L) My daily use setting is engaged on the "H" and just put on "D" when driving. When is the time to engage HL, N, LL? I did test every 4WD shifts and learned that when shifted to HL, the rear wheel tended to skid. When shift to "N" and "LL" the car never move at all although I put my auto trans to "D-Drive". I tested it on the pavement road but with very slow speed (worry if spoil the trans case). When I park my car (in "P" mode) and shift the 4WD to "LL", I noticed that the "A/T P" light is on. What does it mean? When the mechanic warnned me not to try 4WD on the pavement road, I felt scared and never try it after that. But I dont feel satisfied untill I get to know how to use the 4WD. Can any guru dont mind to teach a word or two? Thanks.
  2. Hi to all 4x4 gurus, Recently I can clearly hear the irritating sound (sharp noise) from inside my Prado Tz. I have checked the gearbox and engine at experinced workshop but they claimed that my prado was in excellent condition. I still dont give up and decide to have a check on my own. I have checked all the plastic hooks and dashboard as well as all the possible part inside the car for loosen screws or nuts. But till the end I could not even find the source of noise! The noise irritating sound can be heard whenever the car RPM increase to between 1500 - 2000. Below or beyond this range the sound is disappeared any way. It may not cause any harm to my car (I guess) as I used to drive the car with the sound for more than 15,000 km and it seems no major failure to the car components. So I guess the sound may be just caused by some part in the car due to vibration (there is no such sound from outside the car). I have recorded the sound and posted it here, hoping some gurus may be experinced or familiar with this irritating sound. I found it very annoying when driving along with this noise. Please dont mind to give your advice so I may solve this problem asap. Thanks/ Sound clip.wav
  3. How To Use 4Wd?

    Dear car gurus, recently I started to explore more about the function of a 4wd system. As mentioned in other thread, I own a toyota prado TZ 3.0 and after searching from the internet, I learn that this is a full time 4WD vehicle (4wd come with differential lock). The 4WD has 4 shifts: H, HL, N, LL and comes with standard auto transmission system (P, R, N, D, 2, L) My daily use setting is engaged on the "H" and just put on "D" when driving. When is the time to engage HL, N, LL? I did test every 4WD shifts and learned that when shifted to HL, the rear wheel tended to skid. When shift to "N" and "LL" the car never move at all although I put my auto trans to "D-Drive". I tested it on the pavement road but with very slow speed (worry if spoil the trans case). When I park my car (in "P" mode) and shift the 4WD to "LL", I noticed that the "A/T P" light is on. What does it mean? When the mechanic warnned me not to try 4WD on the pavement road, I felt scared and never try it after that. But I dont feel satisfied untill I get to know how to use the 4WD. Can any guru dont mind to teach a word or two? Thanks.
  4. Poor Starting

    Does your vehicle start to consume engine oil? Try to check your engine oil level if it is leaking into combustion chamber? My car is Prado Kzj95 diesel 3000cc model, having the same intermitant starting problem (engine warm or hot. After examine by the well experience mechanic, it is confirmed the compression in the cylinder is low and need to overhaul the engine.
  5. Prado 3.0l Oil Capacity

    How often you change your ATF? What is the color of the fliud when you drain it out? Blackish or other colors?
  6. I dont know if another cooler can be fixed into engine compartment as it is almost full with all the engine parts. I think the best way to prevent the mixture is to put some coolant to the radiator as to protect it from deterioration and corrosion happen to the cooler tube of transmission. Also, my practice is to always check the transmission oil whenever i change engine oil. if it is not milky, then souldbe ok.
  7. 4wd Gearbox - Maybe A Problem!

    Hi Andy, Will this cause any part failure to the car 4WD system " as one wheel will not slip and cause wind up in the transmission" I am quite new to 4wd car also. Thanks.
  8. Prado Tz 3.0 - Engine Oil Leaks.

    Hi all, My rad cap finally breaks. photo attached here. Luckily it never boils my engine head. As for the auto trasmission oil, I saw the oil was still in dark color and not milky, so I am quite confident the aluminium pipe for auto trasmission oil is still in good condition and rad water never mix with oil. Thanks God.
  9. Prado Tz 3.0 - Engine Oil Leaks.

    Hi, sandgroper Thank you so much on the informative advice. I wonder if all the cars with autogear box have the radiator shared by transmission system and engine? Or is it just particulary for Toyota Prado? By the way, I wonder if I can install a seperate cooler for my auto transmission as the engine compartment is very compact already. A new seperate cooler means a dedicated cooler fan, circulating system and etc..... May I know if there any sign on radiator to indicate the car owner of potential leakage problem? Radiator shops have a hand pump which plugs into the radiator after removing the radiaitor cap. The pump has a guage and the pressure is increased to simulate normal radiator pressure and they then look and listen for leaks. It wont necessarily find material deteriation unless it begins to leak where the material is degraded. We used one to find the water pump leaking on my Holden last week How the coolant and oil can mix depends on the construction of the radiator. Some have metal pipes inside the radiator and as long as they are not broken or corroded the coolant and oil cannot mix Others ,like my old Volvo empty the oil into the bottom of the radiator in a seperate compartment and if the barrier is broken or degraded ,they can mix. The best way is to fit a transmission cooler(like a small radiator) and keep it separate from the radiator,this is what I did on the Volvo
  10. Prado Tz 3.0 - Engine Oil Leaks.

    Hi Andy, Thanks for the advice. But I wonder how to get the rad pressure tested? Will the pressure test detect any failure of the material deterioration? (what i mean is, the test may show the rad is still ok to use, but when time comes, could the plastic rad just fail without any sign?) And when it leaks. how does the water mixed with the gearbox coolants? Are they sharing same pipes? Mine one is with auto gearbox. Two things can happen with the radiator, and one is a water leak which will cause overheating, the other is only if it is an Auto gearbox, becuase the auto transmission cooler is in the bottom of the rad, and if that splits water will enter the gearbox and it will cost mega bucks to repair. I do think that your mechanic is after most of your money, he seems to be looking at worst case on everything he see's, so by all means get the rad pressure tested and if ok just enjoy driving one of the most reliable motors made.
  11. Prado Tz 3.0 - Engine Oil Leaks.

    Hi sandgroper, May I know what is meant by recondition the engine? how is it different from rebuild or overhaul?
  12. Prado Tz 3.0 - Engine Oil Leaks.

    Hi All the Gurus, Please advice if I need to change my radiator (pls refer to the photo uploaded). My mechanic recommended I to change it as the fibre plastic of the radiator has deteriorated at the bottom (becoming pearl white color instead of the original brown color). What is the consequences that I may face if the radiator leaks? Appreciate all of your precious comments. thanks
  13. Prado Tz 3.0 - Engine Oil Leaks.

    Hi sandgroper, Appreciate your opinion and I learn some precious knowledge. I agree with you that the overhaul might not solve the leakage problem. As some of the forumers here advise me not to have the engine overhauled until it becomes more severe, what is your opinion? I dont really have one,in my opinion it is usually associated with dodgy practices,sounds good but its rubbery. These dont have cylinder liners,so how can he be replacing them?Toyota havent used liners since the early 80s in the 2H diesel. Normally you would just bore out the cylinder to the next over size and this means new pistons ,not just rings.You can fit liners if the bore is badly worn or scored. What is on offer from this mechanic is what is good for him,90% labour and 10% in parts. Its an old trick and a short term fix,it will be blowing oil again in 6-12 months, even if that was the problem originally. You need to get some more opinions and ask the mechanic why he has come to the conclusions of what he is suggesting The fellow that you have been dealing with should have done a compression test as a minimum before offering to partially rebuild the engine Im betting its turbo seals also,this is like a $1000 job in oz,cheaper if you remove and replace the turbo If it does need a rebuild ,the engine needs to come out and have an engine kit put through it as well as machining all parts that need it. This would mean new bearings ,seals,gasket,pistons,rings. That kind of job is best left to places that specialise in full engine rebuilds with diesel experience. Im not a mechanic but I have gone through this 3-4 times with various engines inc Toyota diesels over the last 20 years. Ive also had 2 friends who have had this"in body rebuilds" and both were extremely unhappy with the result when they found out ,for a little more,they could have had a full engine reconditioning.
  14. Prado Tz 3.0 - Engine Oil Leaks.

    Hi Andy and tspirit888, I am deeply thankful to your advices and photo shown by Andy. My worried has been eased by looking at your photo, and the statement that the engine is still ok with that condition for the past 6 years. Therefore, I shall follow your advice to leave it alone until there is more severe leakage. Andy, do you need to top up the engine oil from time to time? Can the engine oil last for 5000km distance running without topping up from time to time? It seems your engine leaks more severely than mine.
  15. Prado Tz 3.0 - Engine Oil Leaks.

    Hi sandgroper, What is normally meant by "overhaul" in your opinion? According to the mechanic, he will open out the crankcase, change cylinder liners, piston rings, and recondition the cylinder wall (thus will become biggers after doing that)..... I wonder whether my prado need to undergo such big surgery or not....