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PUKU

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Posts posted by PUKU

  1. I am still struggling to get this Low speed issue with ABS kicking in solved.  I have also found out that it is a common fault with LEXUS so why is there no solution published The GS 300 and RS 300 and other have the same problem.

    Is there anyone near Dorset having the same problem?

    I have now changed all Wheel speed sensors, some reluctor rings, the two speed sensors in the gear box, The ECU and the ABS pump.

    What's left?

  2. The complete ABS module/pump was changed, and my first reaction was that the symptoms are exactly the same. I do not have Techstream but bleeding took the form of doing two handed (footed!) the old fashion way starting at the module bleed nipple then rears then fronts. The process was carried over two days (my own time restrictions) prior to road testing with the outcome being exactly the same as before, nothing changed in any way, apart from my own thoughts and findings over the past year or so that it only happens at very low speed to stop.

    Lexus Service couldn't find it!

    I will now try changing the speed sensors on the gear box. I could buy two and change both but i would prefer to do one at a time to determine which is what! My thoughts are to change the COUNTER GEAR SPEED SENSOR first the other one (INPUT TURBINE SPEED SENSOR) sounds to me if it is associated with gear changing.

    Any thoughts here?

    As a further observation both sensors LOOK identical from the outside. Becoming familiar with Lexus thinking now; as they are identical and not handed in any way, can I safely assume they are both the same part number?

  3.  
    All wheel speed sensors have been checked/changed as appropriate (Lexus OEM)- no true faults found apart from dirt on the reluctor rings. The ABS pump and the ECU have been changed - no change in operation. So now attention to the only thing left that I know of is the gear box speed sensor(s) Looked through the OEM workshop manual ... there are TWO speed sensors on the gear box, found under the Air Cleaner assy.. one is called a TURBINE Speed sensor and the other is the COUNTER Gear speed sensor ... Neither sensor has shown up in diagnostics.
    Anyone experienced issues with the gear box sensors (which one?) and/or slow speed (15-12mph) ABS actuating causing a judder and loss of brakes?
  4. I have been quoted £484.56 for the two rear ABS Wheel speed sensors on my RX300 (year 2000) from Lexus - Part# 89545-480 20  (I am sure they quoted me under £170 each a little while ago) I have tried an after market one but not entirely convinced they were suitable as the system went haywire when I fitted one. Thinking it may have been the other rear one I decided to change both however the old ones had to be destroyed to remove them, Rusted in.
     
    Any recommendations for replacing theses please?
  5. Does make you think about that! 

    I have now checked the readings again, yes there is a difference on the values required. (year 2000 to 2003). Plug terminal to terminals was just out of spec at 1.09-1.106 k ohm.. (Required 1.5 k ohm - 1.7k ohm) but open circuit to body ground so that puts that sensor back to the supplier as faulty. 

    Got another on order from different source and if that goes gaga then Lexus here I come!  (Probably go that way anyway but when after market ones are £15-£30 ... 'nuff said!)

    • Like 1
  6. Does one have to reset the ABS System, somehow, after changing a sensor? I ask because I have just replaced the rear O/S sensor and the the ABS is literally going haywire. Brakes are coming on and off at random when accelerating or braking but more worryingly when breaking hard the car will not stop. No ABS or other warning lights are on although VSC did flash on momentary. No lights remain on

    When the sensor is unplugged all is well; running as if no ABS is fitted, (lovely - I'm in control again!). Obviously VSC,ABS and H/Brake warning lights are on.
    I have tried the "disconnect the Battery for a while" bit but no difference.
    I am wondering; I ordered the sensor as a rear right. Silly question ... is that right facing the car or right looking from behind - Offside.
    I want to explore all avenues before I have to send the car in to be looked at (costly)

    Any help would be very much appreciated.

    The car is an RX300 year 2000.

     

  7. Just goes to show you cannot rely on the readouts from the diagnostics. The fault seems to come up at the slightest hic-cup! yet the car runs perfectly.

    As a note since the exhaust was replaced I have not had any issues, other than ABS playing up but that's another storey! For the curious I have cleaned the relunctor rings? (hub ring?), not sure the correct name for it, but a diagnostic (by others) showed  faulty sensor so that is being tackled this week.

  8. I had over a year of problems with MIL lights and so called emission issues. It turned out to be a pin hole (or two) right next to the sensors in the exhaust.

    We have a local tyre, Battery and exhaust place near us in Shaftesbury. They made up a S/S exhaust front to back for about just under £700 (inlsv) and no more exhaust, sensor or MIL issues. That was two years ago.

    Maybe worth checking in with such a place near you if you have one.

  9. Just for a laugh!!! I tow a Carlight (1600Kg) with my RX300 with a Thule detachable hook and absolutely fine. Living here in the West Country many steep 1:4 hills or worse and we go through every time. Trips up to Cumbria and other far flung reaches; Motorways, great up to legal limits. (why try and beat towing speed records? you don't arrive that much sooner and no extra fuel used) Fuel MPG is as would be expected 24-26+MPG.

  10. In Dorset we have many flooded roads, many with up to 12" water perhaps more (never got out of car with tape measure!!) and mostly that water is sitting on quite a few inches of mud/farm manure. Never a problem yet but there again; drive accordingly. I don't crawl through but at the same time don't try to get water over the bonnet and winsdscreen.

    I thought the intension of a SUV was a comfortable off roader Land Rover! The early Range rovers were great and so far RX300 seems OK.

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