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Brake Fluid... Which DOT?

Discussion in 'VT - VX Holden Commodore (1997 - 2002)' started by VT Dave, Jan 17, 2007.

  1. VT Dave

    VT Dave New Member

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    Hey, just a quick question. Which DOT brake fluid do you use in your VT. The only code i could find was something like HN 1796. What does that translate into in english. DOT 3 or DOT 4?
     
  2. Boonz

    Boonz Donating Member

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    dot 4 or higher
     
  3. WAGON MAN

    WAGON MAN Gas Sleeper

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  4. VT Dave

    VT Dave New Member

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    Cheers

    Cheers guys... Talk about prompt service, get an answer in 3 minutes or less.
     
  5. Vzproject

    Vzproject New Member

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    Is super dot 4 OK to use?
     
  6. losh1971

    losh1971 Well-Known Member

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    that will be fine.
     
  7. Vzproject

    Vzproject New Member

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    Cool thanks mate I changed my master cylinder because my one was leaking from the switch on the bottom the new one isn't leaking but I've put a litre of fluid through and still no peddle and still air in the system do I just need to use more fluid and keep bleeding till no air and I have peddle or is there something else I should do?
     
  8. Sabbath'

    Sabbath' Redblock Jesus

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    Did you bench bleed the M/C before installing it?
     
  9. Vzproject

    Vzproject New Member

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    Nah I didn't is that the screw on the side of the mc? Can I do it while it's on the car or do I just have to take it off?
     
  10. stick3

    stick3 Active Member

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    you can do it in the car need some one to push the pedal and hold while you crack the front line first to you see fluid than tighten do the same with rear line have a rag and water handy
    you might have to bleed the brakes again if you got air in the abs
     
  11. Vzproject

    Vzproject New Member

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    Thanks mate I used the closed loop method I seem to have peddle and it's stopping OK but if need be I can try your method thanks heaps
     
  12. gohrdrgomad

    gohrdrgomad Active Member

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    Dont forget about the abs pump also. It may also hold air in it, meaning when you hit the skids it wont send only fluid to the caliper/s. Your break peddle might go to the floor depending on amount of air in it to my understanding.
     
  13. Vzproject

    Vzproject New Member

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    True what can I do about that? I bled the brakes again after the cylinder put 3 500ml bottles through it. Will that have had affect on that?
     
  14. vc commodore

    vc commodore Well-Known Member

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    You can put 10 bottles through it and still have air in the system, if it's not bled correctly....

    With the car running, but parked up, does the brake pedal go up, when it's pumped, or does it stay in the same position? If it stays in the same position, good chance you have all the air out of the system
     
  15. gohrdrgomad

    gohrdrgomad Active Member

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    lf you are not confident you can cary out any proceedure call a mobile mechanic. You could kill someone. l purchased a vacuum bleeder, some are hand pump and some are air compressor assisted. In all honesty the foot bleed methed needing two people knowing how to bleed correctly is the old school method l still prefer. But it wont happen the first go unless you are just emptying the fluid reservaugh and flushing the line and calipers with clean fluid. I have reserched this further as now we have abs pumps. Apparently there is a service technique that activates the pump, l do not know how to do this manualy without the possibility of damaging any related parts/sensors etc. What l can say is the safest way l have found to acheive this is to bleed the system as stated, when satisfied you have acheived a solid peddle take the car to a dirt road preffered and at a low speed break hard. You will feel the peddle change also hear the abs system activate. This will warm/circulate/pulse the fluid allowing any air to move and should rise into the fluid reservaugh. You can repeat this and check the level also safely. If you please bleed the lines again when you get home.
     
  16. losh1971

    losh1971 Well-Known Member

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    I normally gravity bleed and it works great, just takes ages. But I don't know if that would work on a vehicle with ABS? I have normally just had ABS equipped vehicles done by a brake place, only cost 50 - 60 bucks for a flush and peace of mind.
     
  17. Vzproject

    Vzproject New Member

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    Thanks mate done all of the above and closed loop bled the cylinder as stated above if there was air the peddle would come up when pumped while car is running and it's holding still in the same place I'm pretty certain that it's all good and yea the two person brake bleed was wat I did when that failed I did the cylinder closed loop and than bled all four brakes again using two people thanks mate
     
  18. Vzproject

    Vzproject New Member

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    Thanks very much for all your advice parked up pumped and no change so pretty confident it all worked...
     

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